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by aBUGSworstnightmare
Thu Mar 26, 2020 6:03 pm
Forum: Troubleshooting
Topic: STICKY: Setting up HDMI output when video output is wrong.
Replies: 589
Views: 1022146

Re: STICKY: Setting up HDMI output when video output is wrong.

On the Pi 4, to specify the HDMI port, add an index identifier to the hdmi_group or hdmi_mode entry in config.txt, e.g. hdmi_mode:0 or hdmi_group:1. Same is valid for hdmi_timings:0 or hdmi_timings:1=... Make sure to have this set correcly in your config.txt. What I told you was called pixel doublin...
by aBUGSworstnightmare
Wed Mar 25, 2020 4:05 pm
Forum: Troubleshooting
Topic: STICKY: Setting up HDMI output when video output is wrong.
Replies: 589
Views: 1022146

Re: STICKY: Setting up HDMI output when video output is wrong.

If it's too small then you should buy bigger displays *lol*

Right click the desktop and change setting for large scree , should become bigger now
by aBUGSworstnightmare
Wed Mar 25, 2020 4:00 pm
Forum: Advanced users
Topic: I can't find IC number
Replies: 4
Views: 251

Re: I can't find IC number

Your boards have different markings, are they actually the same (i.e. Both 4GB)? Can you post a better quality picture of the markings?
Also you should upload a picture of the barcode label, allowing guys at RPI ro trace.

Are both working?
by aBUGSworstnightmare
Sat Mar 21, 2020 12:27 pm
Forum: HATs and other add-ons
Topic: Gertbot
Replies: 153
Views: 60692

Re: Gertbot

input wrote:
Sat Mar 21, 2020 9:15 am
Hello,

It is a long time ago that I used the Gertboard with the pi3b. But my question is can I use the Gertboard also with the pi zero.

Thanks
sure! Why do you think there's a difference in the GPIO?
by aBUGSworstnightmare
Sat Mar 21, 2020 12:25 pm
Forum: Troubleshooting
Topic: RPI compute module L2 L3 L4 L5
Replies: 2
Views: 94

Re: RPI compute module L2 L3 L4 L5

https://www.raspberrypi.org/documentati ... CM_1p1.pdf
3 page of the schematic has the info.
They are in they HDMI signal lines, so most likely ESD damage!
by aBUGSworstnightmare
Sat Mar 21, 2020 6:25 am
Forum: Advanced users
Topic: Part No. of micro USB connector on Raspberry Pi Zero W v1.1
Replies: 8
Views: 312

Re: Part No. of micro USB connector on Raspberry Pi Zero W v1.1

https://www.raspberrypi.org/documentation/hardware/raspberrypi/schematics/rpi_SCH_Zero_1p3_reduced.pdf Thought of looking at the schematic? 690-005-298-486. As stated in OPs first post As per the schematic available under official Raspberry Pi documentation, it is listed as 690-005-298-486. However...
by aBUGSworstnightmare
Thu Mar 19, 2020 4:59 am
Forum: HATs and other add-ons
Topic: LVDS add-on for Raspberry models with 40pin GPIO
Replies: 115
Views: 84156

Re: LVDS add-on for Raspberry models with 40pin GPIO

THC63LVDM83D ( https://www2.mouser.com/ProductDetail/? ... 97wQ%3D%3D ) is a single channel LVDS transmitter, similiar to SN75LVDS83BDGGR, used on my LVDS4PI. Hence you will have the same problems there: you will need different boards for JEIDA and VESA mapping!
by aBUGSworstnightmare
Wed Mar 18, 2020 6:14 am
Forum: General discussion
Topic: dual monitors help
Replies: 15
Views: 576

Re: dual monitors help

@PeterO: you have tested with inly one monitor connected, booted Raspbian dor the first time and then connected the second monitor, right?
Have you tested with both connected on first Raspbian boot? Maybe that's making the difference (as I always had DPI + HDMI connected from the first boot).?
by aBUGSworstnightmare
Tue Mar 17, 2020 5:16 pm
Forum: General discussion
Topic: dual monitors help
Replies: 15
Views: 576

Re: dual monitors help

i have two monitors hooked up to my pi4 both working except they both have same image on desktop. i go into settings and only shows one hdmi hooked up. ive tried different monitors and cables but no luck. wondering if there another setting that im missing. all the video show just plug them in and t...
by aBUGSworstnightmare
Sun Mar 15, 2020 7:41 am
Forum: Compute Module
Topic: rotate display with DPI and vc4-kms-v3d
Replies: 2
Views: 203

Re: rotate display with DPI and vc4-kms-v3d

Use the screen configuration utility for rotation
by aBUGSworstnightmare
Sat Mar 14, 2020 8:16 am
Forum: Troubleshooting
Topic: Touchscreen Touch Not Working- 7" HDMI Cap. Touch
Replies: 4
Views: 163

Re: Touchscreen Touch Not Working- 7" HDMI Cap. Touch

thanks for the responses, I was able to get it working by using this"config.txt" : #dtoverlay=vc4-fkms-v3d ( disabled per a post I read) added this : max_usb_current=1 hdmi_group=2 hdmi_mode=87 hdmi_cvt 1024 600 60 6 0 0 0 hdmi_drive=1 It isn't as sensitive as my smaller screen, the 7" unit works w...
by aBUGSworstnightmare
Fri Mar 13, 2020 7:44 pm
Forum: Interfacing (DSI, CSI, I2C, etc.)
Topic: Multiplexing CSI for two different cameras
Replies: 4
Views: 221

Re: Multiplexing CSI for two different cameras

You need to use identical cameras if you think about multiplexing them to one CSI
Use the compute module if you need to use two different cameras, one connected to each CSI
by aBUGSworstnightmare
Fri Mar 13, 2020 5:14 am
Forum: Troubleshooting
Topic: Touchscreen Touch Not Working- 7" HDMI Cap. Touch
Replies: 4
Views: 163

Re: Touchscreen Touch Not Working- 7" HDMI Cap. Touch

You better ask your manufacturer for support, not here!
What makes me confused when looking at your pictures are the two microUSB sockets which both are labeled Touch.
Maybe you need to connect both, one beeing power only?
by aBUGSworstnightmare
Thu Mar 12, 2020 9:43 am
Forum: Troubleshooting
Topic: 2k Portrait Mode HDMI Display 1440p (1440x2560) how to rotate into Landscape?
Replies: 24
Views: 6433

Re: 2k Portrait Mode HDMI Display 1440p (1440x2560) how to rotate into Landscape?

pi 3 B+
that resolution is not possible with the RPi3+ @60Hz. Get your hands on an RPi4
by aBUGSworstnightmare
Wed Mar 11, 2020 9:34 am
Forum: Troubleshooting
Topic: Touch screen 22 inch monitor in Portrait mode
Replies: 10
Views: 293

Re: Touch screen 22 inch monitor in Portrait mode

'FT5406 memory based driver' is what the 7in DSI reports, hence this needs to be adjusted to your device (output of 'xinput list') the name of that rule is up to you (in this example '99-7inDSI.rules') as long as it is '99-<name_of_your_choice>.rules' Transformation matrix has to be adjusted to your...
by aBUGSworstnightmare
Wed Mar 11, 2020 5:39 am
Forum: General discussion
Topic: Raspberry Pi GPIO and 12v supply
Replies: 10
Views: 474

Re: Raspberry Pi GPIO and 12v supply

https://www.google.com/url?sa=t&source=web&rct=j&url=http://www.ti.com/lit/gpn/uln2803a&ved=2ahUKEwjMwKTN2ZHoAhWq6KYKHYdWAugQFjAPegQIAxAB&usg=AOvVaw23x50-XfB7XFKP_5h0PBbC This device is around for years, keep an eye on the total load power consumption. There might be better options (opto isolators a...
by aBUGSworstnightmare
Wed Mar 11, 2020 5:15 am
Forum: Official Foundation Display
Topic: How can I change to 1024x614 resolution on official touch screen display (7")?
Replies: 5
Views: 468

Re: How can I change to 1024x614 resolution on official touch screen display (7")?

disabeling 'dtoverlay=vc4-fkms-v3d' let's you use the legacy driver, but then you are without HW-acceleration.
by aBUGSworstnightmare
Wed Mar 11, 2020 5:10 am
Forum: Official Foundation Display
Topic: Why is the screen "built" upside down?
Replies: 4
Views: 327

Re: Why is the screen "built" upside down?

... I can't rotate the pi on the board because the ribbon cable isn't long enough. Why, oh why was it designed this terrible way? What am I missing? Anything obvious I have misunderstood? there is no official touchscreen case, so nothing to complain about! If you want to, get in touch with the deve...
by aBUGSworstnightmare
Wed Mar 11, 2020 5:06 am
Forum: Troubleshooting
Topic: RPI hid_multitouch invert XY
Replies: 1
Views: 81

Re: RPI hid_multitouch invert XY

Try this viewtopic.php?f=108&t=219333&p=1348198& ... n#p1348198

Your problem also sounds like wrong coordinate transformation matrix ..
Letme know if it works affter reboot (as somebody in another threat mentions it doesn't)
by aBUGSworstnightmare
Wed Mar 11, 2020 5:01 am
Forum: Troubleshooting
Topic: Touch screen 22 inch monitor in Portrait mode
Replies: 10
Views: 293

Re: Touch screen 22 inch monitor in Portrait mode

I was under the impression that clear instructions are in my post linked above *hmm?*
It dooes mention every single step, using the 7in DSI as an example. The udev rule makes it persistant.
by aBUGSworstnightmare
Tue Mar 10, 2020 2:05 pm
Forum: HATs and other add-ons
Topic: Q on Pi4B with two distinct HDMI displays and /boot/config.txt
Replies: 5
Views: 310

Re: Q on Pi4B with two distinct HDMI displays and /boot/config.txt

disabeling 'dtoverlay=vc4-fkms-v3d' let's you use the legacy driver. Shure, you can have two desktops (framebuffers) there as well but without HW-acceleration. I've posted an example for 7in DSI+HDMI here in the forum on how to set it up (note: all settings will revert to 'defaults' in case you re-e...
by aBUGSworstnightmare
Tue Mar 10, 2020 1:58 pm
Forum: Troubleshooting
Topic: Touch screen 22 inch monitor in Portrait mode
Replies: 10
Views: 293

Re: Touch screen 22 inch monitor in Portrait mode

Searching the forum might help ... don't know how often this has been described here already ...

viewtopic.php?f=108&t=219333&p=1348198& ... n#p1348198
by aBUGSworstnightmare
Tue Mar 10, 2020 5:24 am
Forum: HATs and other add-ons
Topic: Q on Pi4B with two distinct HDMI displays and /boot/config.txt
Replies: 5
Views: 310

Re: Q on Pi4B with two distinct HDMI displays and /boot/config.txt

Thank you, that did the trick! Unfortunately only for 9" display being :0 and HDMI-1. I tried to switch roles (in /boot/config.txt and ~/.xsessionrc) and that way only 9" display is working. ... sorry, but I don't understand your comment! Which 'role' do you want to switch? Use screen configuration...

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