kidsteele
Posts: 4
Joined: Mon Jan 06, 2014 12:22 am

Re: Setting up HDMI output

Thu Jan 09, 2014 5:03 pm

Thank you very much. I will make the config.txt and put some of those things in to see if it helps. One other question, if the TV shows "No Signal," is it still able to send a message to the RaspberryPi?

Really appreciate the help. Dead in the water without being able to input to the TV. I did read about running the Pi "headless," which I can try, but would like to get it to work to the TV just because. ;-)

maio
Posts: 6
Joined: Fri Jan 17, 2014 10:14 pm

Re: Setting up HDMI output

Mon Jan 20, 2014 1:41 pm

@ kidsteele
logging in to your pi from another decive is really easy (easy as 1-2-3 -- using terminal):

1.)you need to have ssh enabled -->

Code: Select all

raspi-config
2.)find out what's the address of your pi (form yout pi)-->

Code: Select all

ifconfig
-- if you want to find this from an external computer on the network you could use nmap

3.)once you've found out what the adress of your Pi is you should be able to log in with
-->

Code: Select all

 ssh 192.168.1.13 -l pi
[I used 192.168.1.13 as an example; you need to use the address you've found at step 2]

after that you'll need to login and you're done !!!
enjoy you Pi

kidsteele
Posts: 4
Joined: Mon Jan 06, 2014 12:22 am

Re: Setting up HDMI output

Wed Jan 22, 2014 7:34 pm

Thank you! I am not sure however how to get the terminal to work on the laptop. I have no way to talk to it yet. I haven't revisited the hdmi connection, but I think part of that might be my misunderstanding about the tv. I now think I need to run via something else that sends the signal to the tv as I am not sure it knows pi is trying to reach it. I hooking it directly from the pi to the hdmi on the tv. Does that sound right?

Best regards from frigid by our standards, Washington, D.C.,

Lynne

maio
Posts: 6
Joined: Fri Jan 17, 2014 10:14 pm

Re: Setting up HDMI output

Wed Jan 22, 2014 8:35 pm

you can use putty in a window computer
otherwise with a linux os the ssh command.


if you have problems try describing what your network looks like (computers and OS /routers/ switches)

sbollapa
Posts: 2
Joined: Mon Jan 27, 2014 1:58 am

Re: Setting up HDMI output

Mon Jan 27, 2014 2:11 am

Sorry, if this is not the correct forum but am having issue with the screen resolution/refresh rate
What am trying:
1. Using old Apple iBook G4 monitor with lcd converter from ebay:
http://www.ebay.com/itm/M-NT68676-2A-HD ... 3f23541e55
2. Using raspbmc currently but it makes no difference in the screen related issue am having

Code: Select all

[email protected]:~$ tvservice -d test.edid
Written 128 bytes to test.edid

[email protected]:~$ edidparser test.edid
Enabling fuzzy format match...
Parsing test.edid...
HDMI:EDID version 1.3, 0 extensions, unknown aspect ratio
HDMI:EDID features - videodef 0x80 standby !suspend !active off; colour encoding:RGB444|YCbCr444|YCbCr422; sRGB is default colourspace; preferred format is native; does not support GTF
HDMI:EDID found monitor name descriptor tag 0xfc
HDMI:EDID monitor name is Crystal_View
HDMI:EDID ignored unknown descriptor tag 0x10
HDMI:EDID ignored unknown descriptor tag 0x10
HDMI:EDID does not yet know monitor vertical range, setting to default 24 to 120Hz
HDMI:EDID found preferred DMT detail timing format: 1024x768p @ 60 Hz (16)
HDMI:EDID established timing I/II bytes are AD CE 00
HDMI:EDID found DMT format: code 4, 640x480p @ 60 Hz in established timing I/II
HDMI:EDID found DMT format: code 5, 640x480p @ 72 Hz in established timing I/II
HDMI:EDID found DMT format: code 6, 640x480p @ 75 Hz in established timing I/II
HDMI:EDID found DMT format: code 9, 800x600p @ 60 Hz in established timing I/II
HDMI:EDID found DMT format: code 10, 800x600p @ 72 Hz in established timing I/II
HDMI:EDID found DMT format: code 11, 800x600p @ 75 Hz in established timing I/II
HDMI:EDID found DMT format: code 16, 1024x768p @ 60 Hz in established timing I/II
HDMI:EDID found DMT format: code 17, 1024x768p @ 70 Hz in established timing I/II
HDMI:EDID found DMT format: code 18, 1024x768p @ 75 Hz in established timing I/II
HDMI:EDID standard timings block x 8: 0x0000 0000 0000 0000 0000 0000 0000 0000
HDMI:EDID filtering formats with pixel clock > 162 MHz or h. blanking > 1023
HDMI:EDID best score mode initialised to DMT (4) 640x480p @ 60 Hz with pixel clock 25 MHz (score 0)
HDMI:EDID best score mode is now DMT (4) 640x480p @ 60 Hz with pixel clock 25 MHz (score 36864)
HDMI:EDID best score mode is now DMT (5) 640x480p @ 72 Hz with pixel clock 31 MHz (score 44236)
HDMI:EDID best score mode is now DMT (6) 640x480p @ 75 Hz with pixel clock 31 MHz (score 46080)
HDMI:EDID best score mode is now DMT (9) 800x600p @ 60 Hz with pixel clock 40 MHz (score 57600)
HDMI:EDID best score mode is now DMT (10) 800x600p @ 72 Hz with pixel clock 50 MHz (score 69120)
HDMI:EDID best score mode is now DMT (11) 800x600p @ 75 Hz with pixel clock 49 MHz (score 72000)
HDMI:EDID best score mode is now DMT (16) 1024x768p @ 60 Hz with pixel clock 65 MHz (score 5141555)
HDMI:EDID DMT mode (17) 1024x768p @ 70 Hz with pixel clock 75 MHz has a score of 110100
HDMI:EDID DMT mode (18) 1024x768p @ 75 Hz with pixel clock 78 MHz has a score of 117964
HDMI:EDID preferred mode remained as DMT (16) 1024x768p @ 60 Hz with pixel clock 65 MHz
HDMI:EDID has only DVI support and no audio support
edid_parser exited with code 0

I modified the config.txt as follows but don't see any change in the screen.(Also tried with mode to 16 but don't see any difference)
hdmi_ignore_edid=0xa5000080
hdmi_group=1
hdmi_mode=4
hdmi_drive=2
arm_freq=850
core_freq=375
disable_overscan=1
start_file=start_x.elf
hdmi_safe=1
hdmi_cvt 720 480 60 6 0 0 0

Could someone pls help..
Thanks..
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ez33brands
Posts: 1
Joined: Mon Jan 27, 2014 1:42 pm

Re: Setting up HDMI output

Mon Jan 27, 2014 2:00 pm

I was entering the commands as per the instructions 'tvservice -m CEA', but was getting an error '-bash: tvservice: command not found'. HELP?


________________
Bob

User avatar
FTrevorGowen
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Re: Setting up HDMI output

Mon Jan 27, 2014 2:38 pm

ez33brands wrote:I was entering the commands as per the instructions 'tvservice -m CEA', but was getting an error '-bash: tvservice: command not found'. HELP?
________________
Bob
Which O.S. are you using? Is it up to date?
What do you get if you type which tvservice?
(For Raspbian 3.10.24+ #614 tvservice "lives" at /usr/bin/tvservice. IIRC, for older** versions it was /opt/bin/tvservice. )
Trev.
**but I'm not sure when it was moved
Still running Raspbian Jessie or Stretch on some older Pi's (an A, B1, 2xB2, B+, P2B, 3xP0, P0W, 2xP3A+, P3B+, P3B, B+, and a A+) but Buster on the P4B's. See: https://www.cpmspectrepi.uk/raspberry_pi/raspiidx.htm

dom
Raspberry Pi Engineer & Forum Moderator
Raspberry Pi Engineer & Forum Moderator
Posts: 5461
Joined: Wed Aug 17, 2011 7:41 pm
Location: Cambridge

Re: Setting up HDMI output

Mon Jan 27, 2014 7:30 pm

FTrevorGowen wrote: (For Raspbian 3.10.24+ #614 tvservice "lives" at /usr/bin/tvservice. IIRC, for older** versions it was /opt/bin/tvservice. )
Trev.
**but I'm not sure when it was moved
Actually it's always been at /opt/vc/bin/tvservice.
More recently (at least several months ago) a shortcut was added to it from /usr/bin/tvservice so it appears on your path.

supersido
Posts: 1
Joined: Thu Mar 06, 2014 12:07 pm

Re: Setting up HDMI output

Thu Mar 06, 2014 1:08 pm

Hello everyone,

First of all, great forum!
I'm new here and after reading all the posts I still have some problems regarding to the HDMI output on a plasma television. I have to show a slideshow of pictures on a plasma monitor. When I use the Picture-slideshow, my PGN's have a blue-ish shadow to the right of the original image(Ghost image?). While the XBMC menu seems to be displayed correctly. I also tried it with JPG's with the same problem. If i hook up a G5 mac, the images are displayed correctly. (so the vga cable must be okay?) I am currently using a " PiView" adapter (hdmi to vga convertor for the raspberry pi) which draws it's power from the raspberry itself. I also gave a hdmi signal a boost (4) in the config.txt .

I'm using an SD with NOOBS (new out of box) and im currently running RaspBMC on a Panasonic Viera >PS< TBM0e0588 plasma television.

Here are my edid files:

[email protected]:~$ tvservice -m CEA
Group CEA has 59 modes:
mode 1: 640x480 @ 60Hz 4:3, clock:25MHz progressive
mode 2: 720x480 @ 60Hz 4:3, clock:27MHz progressive
mode 3: 720x480 @ 60Hz 16:9, clock:27MHz progressive
(native) mode 4: 1280x720 @ 60Hz 16:9, clock:74MHz progressive
mode 5: 1920x1080 @ 60Hz 16:9, clock:74MHz interlaced
mode 6: 720x480 @ 60Hz 4:3, clock:27MHz x2 interlaced
mode 7: 720x480 @ 60Hz 16:9, clock:27MHz x2 interlaced
mode 8: 720x240 @ 60Hz 4:3, clock:27MHz x2 progressive
mode 9: 720x240 @ 60Hz 16:9, clock:27MHz x2 progressive
mode 10: 720x480 @ 60Hz 4:3, clock:54MHz x4 interlaced
mode 11: 720x480 @ 60Hz 16:9, clock:54MHz x4 interlaced
mode 12: 720x240 @ 60Hz 4:3, clock:54MHz x4 progressive
mode 13: 720x240 @ 60Hz 16:9, clock:54MHz x4 progressive
mode 14: 720x480 @ 60Hz 4:3, clock:54MHz x2 progressive
mode 15: 720x480 @ 60Hz 16:9, clock:54MHz x2 progressive
(prefer) mode 16: 1920x1080 @ 60Hz 16:9, clock:148MHz progressive
mode 17: 720x576 @ 50Hz 4:3, clock:27MHz progressive
mode 18: 720x576 @ 50Hz 16:9, clock:27MHz progressive
mode 19: 1280x720 @ 50Hz 16:9, clock:74MHz progressive
mode 20: 1920x1080 @ 50Hz 16:9, clock:74MHz interlaced
mode 21: 720x576 @ 50Hz 4:3, clock:27MHz x2 interlaced
mode 22: 720x576 @ 50Hz 16:9, clock:27MHz x2 interlaced
mode 23: 720x288 @ 50Hz 4:3, clock:27MHz x2 progressive
mode 24: 720x288 @ 50Hz 16:9, clock:27MHz x2 progressive
mode 25: 720x576 @ 50Hz 4:3, clock:54MHz x4 interlaced
mode 26: 720x576 @ 50Hz 16:9, clock:54MHz x4 interlaced
mode 27: 720x288 @ 50Hz 4:3, clock:54MHz x4 progressive
mode 28: 720x288 @ 50Hz 16:9, clock:54MHz x4 progressive
mode 29: 720x576 @ 50Hz 4:3, clock:54MHz x2 progressive
mode 30: 720x576 @ 50Hz 16:9, clock:54MHz x2 progressive
mode 31: 1920x1080 @ 50Hz 16:9, clock:148MHz progressive
mode 32: 1920x1080 @ 24Hz 16:9, clock:74MHz progressive
mode 33: 1920x1080 @ 25Hz 16:9, clock:74MHz progressive
mode 34: 1920x1080 @ 30Hz 16:9, clock:74MHz progressive
mode 35: 720x480 @ 60Hz 4:3, clock:108MHz x4 progressive
mode 36: 720x480 @ 60Hz 16:9, clock:108MHz x4 progressive
mode 37: 720x576 @ 50Hz 4:3, clock:108MHz x4 progressive
mode 38: 720x576 @ 50Hz 16:9, clock:108MHz x4 progressive
mode 39: 1920x1080 @ 50Hz 16:9, clock:72MHz interlaced
mode 40: 1920x1080 @ 100Hz 16:9, clock:148MHz interlaced
mode 41: 1280x720 @ 100Hz 16:9, clock:148MHz progressive
mode 42: 720x576 @ 100Hz 4:3, clock:54MHz progressive
mode 43: 720x576 @ 100Hz 16:9, clock:54MHz progressive
mode 44: 720x576 @ 100Hz 4:3, clock:54MHz x2 interlaced
mode 45: 720x576 @ 100Hz 16:9, clock:54MHz x2 interlaced
mode 46: 1920x1080 @ 120Hz 16:9, clock:148MHz interlaced
mode 47: 1280x720 @ 120Hz 16:9, clock:148MHz progressive
mode 48: 720x480 @ 120Hz 4:3, clock:54MHz progressive
mode 49: 720x480 @ 120Hz 16:9, clock:54MHz progressive
mode 50: 720x480 @ 120Hz 4:3, clock:54MHz x2 interlaced
mode 51: 720x480 @ 120Hz 16:9, clock:54MHz x2 interlaced
mode 52: 720x576 @ 200Hz 4:3, clock:108MHz progressive
mode 53: 720x576 @ 200Hz 16:9, clock:108MHz progressive
mode 54: 720x576 @ 200Hz 4:3, clock:108MHz x2 interlaced
mode 55: 720x576 @ 200Hz 16:9, clock:108MHz x2 interlaced
mode 56: 720x480 @ 240Hz 4:3, clock:108MHz progressive
mode 57: 720x480 @ 240Hz 16:9, clock:108MHz progressive
mode 58: 720x480 @ 240Hz 4:3, clock:108MHz x2 interlaced
mode 59: 720x480 @ 240Hz 16:9, clock:108MHz x2 interlaced

----------------------------------------------------
[email protected]:~$ tvservice -m DMT
Group DMT has 54 modes:
mode 1: 640x350 @ 85Hz unknown AR, clock:31MHz progressive
mode 2: 640x400 @ 85Hz 16:10, clock:31MHz progressive
mode 3: 720x400 @ 85Hz unknown AR, clock:35MHz progressive
mode 4: 640x480 @ 60Hz 4:3, clock:25MHz progressive
mode 5: 640x480 @ 72Hz 4:3, clock:31MHz progressive
mode 6: 640x480 @ 75Hz 4:3, clock:31MHz progressive
mode 7: 640x480 @ 85Hz 4:3, clock:36MHz progressive
mode 8: 800x600 @ 56Hz 4:3, clock:36MHz progressive
mode 9: 800x600 @ 60Hz 4:3, clock:40MHz progressive
mode 10: 800x600 @ 72Hz 4:3, clock:50MHz progressive
mode 11: 800x600 @ 75Hz 4:3, clock:49MHz progressive
mode 12: 800x600 @ 85Hz 4:3, clock:56MHz progressive
mode 13: 800x600 @ 120Hz 4:3, clock:73MHz progressive
mode 14: 848x480 @ 60Hz 16:9, clock:33MHz progressive
mode 15: 1024x768 @ 43Hz 4:3, clock:44MHz interlaced
mode 16: 1024x768 @ 60Hz 4:3, clock:65MHz progressive
mode 17: 1024x768 @ 70Hz 4:3, clock:75MHz progressive
mode 18: 1024x768 @ 75Hz 4:3, clock:78MHz progressive
mode 19: 1024x768 @ 85Hz 4:3, clock:94MHz progressive
mode 20: 1024x768 @ 120Hz 4:3, clock:115MHz progressive
mode 21: 1152x864 @ 75Hz 4:3, clock:108MHz progressive
mode 22: 1280x768 @ 60Hz 15:9, clock:68MHz progressive
mode 23: 1280x768 @ 60Hz 15:9, clock:79MHz progressive
mode 24: 1280x768 @ 75Hz 15:9, clock:102MHz progressive
mode 25: 1280x768 @ 85Hz 15:9, clock:117MHz progressive
mode 26: 1280x768 @ 120Hz 15:9, clock:140MHz progressive
mode 27: 1280x800 @ 60Hz 16:10, clock:71MHz progressive
mode 28: 1280x800 @ 60Hz 16:10, clock:83MHz progressive
mode 29: 1280x800 @ 75Hz 16:10, clock:106MHz progressive
mode 30: 1280x800 @ 85Hz 16:10, clock:122MHz progressive
mode 31: 1280x800 @ 120Hz 16:10, clock:146MHz progressive
mode 32: 1280x960 @ 60Hz 4:3, clock:108MHz progressive
mode 33: 1280x960 @ 85Hz 4:3, clock:148MHz progressive
mode 35: 1280x1024 @ 60Hz 5:4, clock:108MHz progressive
mode 36: 1280x1024 @ 75Hz 5:4, clock:135MHz progressive
mode 37: 1280x1024 @ 85Hz 5:4, clock:157MHz progressive
mode 39: 1360x768 @ 60Hz 16:9, clock:85MHz progressive
mode 40: 1360x768 @ 120Hz 16:9, clock:148MHz progressive
mode 41: 1400x1050 @ 60Hz 4:3, clock:101MHz progressive
mode 42: 1400x1050 @ 60Hz 4:3, clock:121MHz progressive
mode 43: 1400x1050 @ 75Hz 4:3, clock:156MHz progressive
mode 46: 1440x900 @ 60Hz 16:10, clock:88MHz progressive
mode 47: 1440x900 @ 60Hz 16:10, clock:106MHz progressive
mode 48: 1440x900 @ 75Hz 16:10, clock:136MHz progressive
mode 49: 1440x900 @ 85Hz 16:10, clock:157MHz progressive
mode 51: 1600x1200 @ 60Hz 4:3, clock:162MHz progressive
mode 57: 1680x1050 @ 60Hz 16:10, clock:119MHz progressive
mode 58: 1680x1050 @ 60Hz 16:10, clock:146MHz progressive
mode 68: 1920x1200 @ 60Hz 16:10, clock:154MHz progressive
mode 81: 1366x768 @ 60Hz 16:9, clock:85MHz progressive
mode 82: 1920x1080 @ 60Hz 16:9, clock:148MHz progressive
mode 83: 1600x900 @ 60Hz 16:9, clock:108MHz progressive
mode 84: 2048x1152 @ 60Hz 16:9, clock:162MHz progressive
mode 85: 1280x720 @ 60Hz 16:9, clock:74MHz progressive
---------------------------------------------------------------------------
Parsing test...
HDMI:EDID version 1.3, 1 extensions, screen size 88x50 cm
HDMI:EDID features - videodef 0xa0 !standby !suspend active off; colour encoding:RGB444|YCbCr422; sRGB is not default colourspace; preferred format is native; does not support GTF
HDMI:EDID ignored unknown descriptor tag 0x0
HDMI:EDID found monitor range descriptor tag 0xfd
HDMI:EDID monitor range offsets: V min=0, V max=0, H min=0, H max=0
HDMI:EDID monitor range: vertical is 50-60 Hz, horizontal is 30-68 kHz, max pixel clock is 150 MHz
HDMI:EDID monitor range does not support GTF
HDMI:EDID found monitor name descriptor tag 0xfc
HDMI:EDID monitor name is LONTIUM
HDMI:EDID found preferred CEA detail timing format: 1920x1080p @ 60 Hz (16)
HDMI:EDID established timing I/II bytes are 21 08 00
HDMI:EDID found DMT format: code 4, 640x480p @ 60 Hz in established timing I/II
HDMI:EDID found DMT format: code 9, 800x600p @ 60 Hz in established timing I/II
HDMI:EDID found DMT format: code 16, 1024x768p @ 60 Hz in established timing I/II
HDMI:EDID standard timings block x 8: 0x6140 A940 0101 0101 0101 0101 0101 0101
HDMI:EDID found DMT format: code 16, 1024x768p @ 60 Hz (4:3) in standard timing 0
HDMI:EDID found DMT format: code 51, 1600x1200p @ 60 Hz (4:3) in standard timing 1
HDMI:EDID parsing v3 CEA extension 0
HDMI:EDID monitor support - underscan IT formats:yes, basic audio:yes, yuv444:yes, yuv422:yes, #native DTD:1
HDMI:EDID found CEA detail timing format: 1280x720p @ 60 Hz (4)
HDMI:EDID found CEA format: code 16, 1920x1080p @ 60Hz
HDMI:EDID found CEA format: code 31, 1920x1080p @ 50Hz
HDMI:EDID found CEA format: code 4, 1280x720p @ 60Hz (native)
HDMI:EDID does not understand CEA format code 0
HDMI:EDID does not understand CEA format code 0
HDMI:EDID does not understand CEA format code 0
HDMI:EDID found CEA format: code 2, 720x480p @ 60Hz
HDMI:EDID found CEA format: code 3, 720x480p @ 60Hz
HDMI:EDID does not understand CEA format code 0
HDMI:EDID does not understand CEA format code 0
HDMI:EDID does not understand CEA format code 0
HDMI:EDID found audio format 2 channels PCM, sample rate: 32|44|48 kHz, sample size: 16|20|24 bits
HDMI:EDID found Video Capability DB length 2
HDMI:EDID video capability: CE:3 IT:3 PT:0 QS:0
HDMI:EDID found HDMI VSDB length 7
HDMI:EDID HDMI VSDB has physical address 2.0.0.0
HDMI:EDID HDMI VSDB supports AI:yes, dual link DVI:no
HDMI:EDID HDMI VSDB deep colour support - 48-bit:no 36-bit:no 30-bit:no DC_yuv444:no
HDMI:EDID HDMI VSDB max TMDS clock 225 MHz
HDMI:EDID HDMI VSDB has no latency information
HDMI:EDID adding mandatory support for CEA (1) 640x480p @ 60Hz
HDMI:EDID adding mandatory support for CEA (17) 720x576p @ 50Hz
HDMI:EDID adding mandatory support for CEA (18) 720x576p @ 50Hz
HDMI:EDID adding mandatory support for CEA (19) 1280x720p @ 50Hz
HDMI:EDID filtering formats with pixel clock > 162 MHz or h. blanking > 1023
HDMI:EDID best score mode initialised to CEA (1) 640x480p @ 60 Hz with pixel clock 25 MHz (score 0)
HDMI:EDID best score mode is now CEA (1) 640x480p @ 60 Hz with pixel clock 25 MHz (score 61864)
HDMI:EDID best score mode is now CEA (2) 720x480p @ 60 Hz with pixel clock 27 MHz (score 66472)
HDMI:EDID CEA mode (3) 720x480p @ 60 Hz with pixel clock 27 MHz has a score of 66472
HDMI:EDID best score mode is now CEA (4) 1280x720p @ 60 Hz with pixel clock 74 MHz (score 4690888)
HDMI:EDID DMT mode (4) 640x480p @ 60 Hz with pixel clock 25 MHz has a score of 18432
HDMI:EDID DMT mode (9) 800x600p @ 60 Hz with pixel clock 40 MHz has a score of 28800
HDMI:EDID best score mode is now CEA (16) 1920x1080p @ 60 Hz with pixel clock 148 MHz (score 5398248)
HDMI:EDID DMT mode (16) 1024x768p @ 60 Hz with pixel clock 65 MHz has a score of 72185
HDMI:EDID CEA mode (17) 720x576p @ 50 Hz with pixel clock 27 MHz has a score of 66472
HDMI:EDID CEA mode (18) 720x576p @ 50 Hz with pixel clock 27 MHz has a score of 66472
HDMI:EDID CEA mode (19) 1280x720p @ 50 Hz with pixel clock 74 MHz has a score of 117160
HDMI:EDID CEA mode (31) 1920x1080p @ 50 Hz with pixel clock 148 MHz has a score of 232360
HDMI:EDID DMT mode (51) 1600x1200p @ 60 Hz with pixel clock 162 MHz has a score of 140200
HDMI:EDID preferred mode remained as CEA (16) 1920x1080p @ 60 Hz with pixel clock 148 MHz
HDMI:EDID has HDMI support and audio support
edid_parser exited with code 0

------------------------------------
And finally, this is how my config.txt looks like:

arm_freq=850
core_freq=375
force_turbo=1
disable_overscan=1
hdmi_force_hotplug=1
config_hdmi_boost=4
hdmi_ignore_edid=0xa5000080
hdmi_group=1
hdmi_mode=16
start_file=start_x.elf
fixup_file=fixup_x.dat
----------------------------------------------

Anyone else has problems with a blue-ish shade over their pictures? (when there is black text on a white background, it shows a blue shadow. Or perhaps someone can point me in the right direction. Any help is much apreciated.

Thanks in advance.
Greetings from the Netherlands!

framboosejh
Posts: 17
Joined: Tue Mar 11, 2014 3:13 pm

Re: Setting up HDMI output

Tue Mar 11, 2014 3:40 pm

I want to use my raspberry headless. I use x11vnc as server. This works fine. However when i disconnect my DVI monitor, the resolution changes from 1680x1050 to 1280x720 despite the fact that i changed config.txt with "hdmi_force_hotplug=1" and "hdmi_group=2" and "hdmi_mode=58", this should give the resolution 1680x1050 @60Hz. I tried this several times, but it doesn't work. The only way to get it working is startup the RPI with the monitor connected and then remove the HDMI cable because the RPI get the right information from the monitor while it is booting. I don't understand why the HDMI settings in config.txt don't work. how can i see that the RPI read config.txt and executes these options? I am lost now. :(

jani_m
Posts: 1
Joined: Wed Mar 12, 2014 10:45 am

Re: Setting up HDMI output

Wed Mar 12, 2014 10:59 am

Hi to all. Not sure if this is the right post, but still: Does the raspberry knows which input is selected on the TV? Or better: Does the TV send back (through DDC/CEC/HEC/ARC/...) the information, that the Rpi input is selected/being watched?
I don't have CEC compatible TV, but I can build an IR reciever and use the same remote to control Rpi, but I would like to disable it when I watch something else (another input or DVB-T).

dom
Raspberry Pi Engineer & Forum Moderator
Raspberry Pi Engineer & Forum Moderator
Posts: 5461
Joined: Wed Aug 17, 2011 7:41 pm
Location: Cambridge

Re: Setting up HDMI output

Wed Mar 12, 2014 4:42 pm

framboosejh wrote:I want to use my raspberry headless. I use x11vnc as server. This works fine. However when i disconnect my DVI monitor, the resolution changes from 1680x1050 to 1280x720 despite the fact that i changed config.txt with "hdmi_force_hotplug=1" and "hdmi_group=2" and "hdmi_mode=58", this should give the resolution 1680x1050 @60Hz. I tried this several times, but it doesn't work. The only way to get it working is startup the RPI with the monitor connected and then remove the HDMI cable because the RPI get the right information from the monitor while it is booting. I don't understand why the HDMI settings in config.txt don't work. how can i see that the RPI read config.txt and executes these options? I am lost now. :(
Add:
hdmi_ignore_edid=0xa5000080

benco_tenovski
Posts: 1
Joined: Thu Mar 13, 2014 7:24 pm

Re: Setting up HDMI output

Thu Mar 13, 2014 7:32 pm

Hi there. I wanna know does the Raspberry Pi compies with older plazma TVs with HDMI output or a new generation TV of LED is more applicable? I know it's a bit silly question and I may posted it on the wrong thread but I really need to know this.

Thanks in advance

____________________________________________________________________________________________________

Ben 10 Aliens Games

dom
Raspberry Pi Engineer & Forum Moderator
Raspberry Pi Engineer & Forum Moderator
Posts: 5461
Joined: Wed Aug 17, 2011 7:41 pm
Location: Cambridge

Re: Setting up HDMI output

Fri Mar 14, 2014 2:40 pm

benco_tenovski wrote:Hi there. I wanna know does the Raspberry Pi compies with older plazma TVs with HDMI output or a new generation TV of LED is more applicable? I know it's a bit silly question and I may posted it on the wrong thread but I really need to know this.
If the TV has a HDMI socket, you should be fine. Plasma, LCD or LED should make no difference.

framboosejh
Posts: 17
Joined: Tue Mar 11, 2014 3:13 pm

Re: Setting up HDMI output

Sun Mar 16, 2014 10:36 am

dom wrote:
framboosejh wrote:I want to use my raspberry headless. I use x11vnc as server. This works fine. However when i disconnect my DVI monitor, the resolution changes from 1680x1050 to 1280x720 despite the fact that i changed config.txt with "hdmi_force_hotplug=1" and "hdmi_group=2" and "hdmi_mode=58", this should give the resolution 1680x1050 @60Hz. I tried this several times, but it doesn't work. The only way to get it working is startup the RPI with the monitor connected and then remove the HDMI cable because the RPI get the right information from the monitor while it is booting. I don't understand why the HDMI settings in config.txt don't work. how can i see that the RPI read config.txt and executes these options? I am lost now. :(
Found solution!! :D
I found a solution for my problem. First I get the edid information from the monitor with tvservice -d edid.dat, then I copied edid.dat to the /boot directory and set de following parameter in config.txt: hdmi_edid_file=1. After a reboot without the monitor connector the resolution was right; 1680x1050
Checked it with tvservice -s and yes the resolution was the same as if the monitor was connected.

I stil don't understand why the parameters hdmi_group=2 and hdmi_mode=58 wouldn't work. Did I miss something? Yes I did mis the reply from DOM. :oops: I didn't test that because I tried the above solution before I did read the reply from DOM. Sorry. I did test the solution from DOM and added hdmi_ignore_edid=0xa5000080 to config.txt and removed hdmi_edid_file=1. This worked as a framboosje (Raspberry in dutch). :D :D

framboosejh

woodstock
Posts: 3
Joined: Mon Mar 24, 2014 12:41 am

Re: Setting up HDMI output

Mon Mar 24, 2014 1:27 am

Hi

I have since 2 weeks Raspberry Pi UK.version.I first installed 3 version with Noobs.
Raspbian,Raspbmc und Open Elec. Raspbian works flawlessly. Okay!
Raspbmc started and no picture!I mean, picture flickers.
So, for 2 seconds the picture is to be seen.5 seconds long is the picture disappears.
For 2 seconds picture-for 5 a few seconds no picture.And so the game repeats again and again.

Maybe that makes NOOBS problems.So, I have just installed XBMC and update performed.
Reboot XBMC and the problem is back.For 2 seconds picture-for 5 a few seconds no picture.

I am now at a loss.Do I need to buy a new tv? Please, can anyone help me?

My TV: 42 "HD ready and 1360x768.

Thanks in advance

2jmike
Posts: 7
Joined: Fri Feb 14, 2014 4:45 pm

Re: Setting up HDMI output

Thu Mar 27, 2014 12:56 pm

bredman wrote:Is this really appropriate in the "Absolute Beginners" section?
I'm an absolute beginner and this may as well be written in chinese.

MrShelmed
Posts: 3
Joined: Sat Apr 12, 2014 9:09 am

Re: Setting up HDMI output

Sat Apr 12, 2014 11:57 am

Hi guys,
Hope you can help me with this one. Have done a lot of Googling and forum searching but still not coming up with the answer.

Am trying to set up a monitor on my Pi with Raspbian Wheezy.

The monitor is an Asus VE228 with a native resolution of [email protected]

I have got the desktop up and running and filling the screen but at the lower resolution of 1280x720. I would like to get it up to the full resolution on HDMI.

Have been following the advice at the start of this thread but cannot seem to get the Pi to spit out the values for the monitor using the tvservice command.

I edited my config.txt to look like this:

Code: Select all

  # uncomment if you get no picture on HDMI for a default "safe" mode
#hdmi_safe=1

# uncomment this if your display has a black border of unused pixels visible
# and your display can output without overscan
disable_overscan=1

# uncomment the following to adjust overscan. Use positive numbers if console
# goes off screen, and negative if there is too much border
#overscan_left=16
#overscan_right=16
#overscan_top=16
#overscan_bottom=16

# uncomment to force a console size. By default it will be display's size minus
# overscan.
#framebuffer_width=1280
#framebuffer_height=720

# uncomment if hdmi display is not detected and composite is being output
hdmi_force_hotplug=1

# uncomment to force a specific HDMI mode (this will force VGA)
hdmi_group=1
hdmi_mode=1

# uncomment to force a HDMI mode rather than DVI. This can make audio work in
# DMT (computer monitor) modes
hdmi_drive=2

# uncomment to increase signal to HDMI, if you have interference, blanking, or
# no display
#config_hdmi_boost=4

# uncomment for composite PAL
#sdtv_mode=2
I then tried all the following commands and got these results:

Code: Select all

sudo tvservice -m CEA
Group CEA has 0 modes:


sudo tvservice -m DMT
Group DMT has 0 modes:

sudo tvservice -d edid.dat
Nothing written!
sudo edidparser edid
Enabling fuzzy format match...
Failed to open edid
edid_parser exited with code -1

sudo tvservice -s
state 0x12001a [HDMI CEA (4) RGB lim 16:9], 1280x720 @ 60Hz, progressive
Am grateful for any advice pointing me in the right direction
:)

dom
Raspberry Pi Engineer & Forum Moderator
Raspberry Pi Engineer & Forum Moderator
Posts: 5461
Joined: Wed Aug 17, 2011 7:41 pm
Location: Cambridge

Re: Setting up HDMI output

Sat Apr 12, 2014 1:42 pm

MrShelmed wrote:Am grateful for any advice pointing me in the right direction
Are you connecting with a hdmi to DVI cable, or some other means?
Looks like we can't read the edid to determine the resolutions supported. This may be a hardware fault in monitor or a bad hdmi cable, but it can be worked around.

Personally I'd try:

Code: Select all

hdmi_group=2 
hdmi_mode=82
hdmi_force_hotplug=1
hdmi_ignore_edid=0xa5000080
in confg.txt.

MrShelmed
Posts: 3
Joined: Sat Apr 12, 2014 9:09 am

Re: Setting up HDMI output

Sat Apr 12, 2014 10:27 pm

Yes am using an hdmi cable. It is a relatively cheap one. However I will try modifying my config.txt as you have written and see how we go.
Thanks for your suggestion.

MrShelmed
Posts: 3
Joined: Sat Apr 12, 2014 9:09 am

Re: Setting up HDMI output

Sun Apr 13, 2014 1:14 am

Thanks for that Dom.
Your config worked perfectly :D

I thought I could do it by checking the monitor specs and choosing the correct hdmi mode as you suggested - just frustrated that I couldn't get the tvservice edid commands to work - always get upset when I can't get to the root of a problem ;)

cmarty
Posts: 40
Joined: Thu Jul 19, 2012 7:23 am
Location: Czech Republic

Re: Setting up HDMI output

Tue Apr 15, 2014 7:24 am

Hello.
I use HDMI display without sound in HDMI. I would like to use resolution is 1280x800 @ 50Hz .
This is not the standard resolution so I added new custom mode "hdmi_cvt=1280 800 50 5 0 0 0" to /boot/config.txt
and "hdmi_group=2", "hdmi_mode=87". The custom mode is working ok.
But the problem that I have is when I specify hdmi_group and hdmi_mode in config.txt and reboot Rpi then I am not able to later change the mode to something else with tvservice -e "DMT XXX" command. When I then try to list available modes with command "tvservice -m DMT" I get only the one (custom) mode.
If I disable hdmi_group and hdmi_mode in config.txt then I see all the modes and can switch between them - but it boots at default in 720p mode.
Is this a standard behaviour how it works ?
I would like to boot at default in [email protected] but then dynamically change between 50Hz and 60Hz as I will need it.
My config.txt has this options active:

framebuffer_width=1280
framebuffer_height=800
hdmi_ignore_edid=0xa5000080
hdmi_force_hotplug=1
hdmi_group=2
hdmi_mode=87
hdmi_cvt=1280 800 50 5 0 0 0

RaspDummy
Posts: 1
Joined: Thu Apr 24, 2014 9:13 am

Re: Setting up HDMI output

Thu Apr 24, 2014 9:19 am

Hi,
I'm pretty new to Raspberry Pi and need some advide.

I want to use the Raspberry Pi together with a very special display: 1920x720 resolution, 24Bit Color RGB
I know all the settings, but the display doesn't seem to provide the right settings via EDID (or Raspberry doesn't understand it, checked with tvservice).

Is there a way to hardcode the display parameters? I've only found ways to select a prefined hdmi_mode (but not the special one I need).
Is hdmi_cvt from previous post doing the job? If yes, what are the various values, I guess the first 3 are width, height and refresh rate.

Thanks in advance

Twinkletoes
Posts: 210
Joined: Fri May 25, 2012 9:44 pm

Re: Setting up HDMI output

Wed May 28, 2014 2:42 pm

WigJohn -

Log into the pi

edit the config.txt file (sudo gives you rights to do it, nano is a text editor):
sudo nano /boot/config.txt

There will be a line in there
#hdmi_force_hotplug=something

Remove the # (this makes it a comment, so removing it makes it do something)
Change to
hdmi_force_hotplug=1

This means that the signal from the TV that says the HDMI is active is ignored and always assumed to be connected.

Now press Ctrl+X and type Y to save the file

ztalbot2000
Posts: 4
Joined: Wed Jun 18, 2014 1:20 pm

Re: Setting up HDMI output

Wed Jun 18, 2014 1:38 pm

I wanted to add a note about the problems I was having with my DEL E1910 monitor and HDMI output to my Pi Rev2.0. The HDMI output would either be blank (no HDMI signal) or the video output disappears very quickly. I could ssh into the Pi, but did not find anything wrong using dmesg. Searching through many forums always returned the same thing about mucking with the config.txt file, using tvservice, setting hdmi_boost, setting edid ...
The fix for the blanking was none of these. In fact everything is now commented out in my config.txt file. The problem was the power supply to the Pi. I tried two different ones each with the same result. Even the brick from my iPad 2 had the same issues. I finally got the HDMI output working by plugging the Pi into the USB port of my iMac keyboard.

Good luck to the rest of you,
John Talbot

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