vin2019
Posts: 1
Joined: Sun Jul 21, 2019 1:10 pm

Help required HDMI - DVI monitor display (no display)

Sun Jul 21, 2019 1:38 pm

hi,
I am new user here. Bought my pi4 and installed Raspberrian OS, trying to connect my Dell P2213 monitor, where no display.

My monitor doesn't have HDMI port, hence i use HDMI -> DVI converter.
hdmi-dvi.png
hdmi-dvi.png (74.41 KiB) Viewed 118 times
I tried few modification in config.txt file. but no luck.

Here is my config.txt

# tvservice -m CEA
Group CEA has 4 modes:
mode 4: 1280x720 @ 60Hz 16:9, clock:74MHz progressive
mode 16: 1920x1080 @ 60Hz 16:9, clock:148MHz progressive
mode 95: 3840x2160 @ 30Hz 16:9, clock:297MHz progressive
mode 97: 3840x2160 @ 60Hz 16:9, clock:594MHz progressive

# tvservice -m DMT
Group DMT has 1 modes:
(prefer) mode 4: 640x480 @ 60Hz 4:3, clock:25MHz progressive

# tvservice -s
state 0x6 [DVI CUSTOM RGB full 4:3], 1024x768 @ 60.00Hz, progressive

# tvservice -d edid.dat
Nothing written!

# uname -a
Linux V2A2 4.19.57-v7l+ #1244 SMP Thu Jul 4 18:48:07 BST 2019 armv7l GNU/Linux

# cat /boot/config.txt |grep -v \#
disable_overscan=1
hdmi_force_hotplug=1
hdmi_group=2
hdmi_mode=4
hdmi_drive=1
config_hdmi_boost=5
dtparam=audio=on
[pi4]
dtoverlay=vc4-fkms-v3d
max_framebuffers=2
[all]

I am able to ssh/vnc.

I could get display if i connected different HDMI monitor (monitor has HDMI port)

Any help that would reduce my invest on new HDMI port monitor.

fruitoftheloom
Posts: 20198
Joined: Tue Mar 25, 2014 12:40 pm
Location: Delightful Dorset

Re: Help required HDMI - DVI monitor display (no display)

Sun Jul 21, 2019 3:07 pm

vin2019 wrote:
Sun Jul 21, 2019 1:38 pm
hi,
I am new user here. Bought my pi4 and installed Raspberrian OS, trying to connect my Dell P2213 monitor, where no display.

My monitor doesn't have HDMI port, hence i use HDMI -> DVI converter. hdmi-dvi.png

I tried few modification in config.txt file. but no luck.

Here is my config.txt

# tvservice -m CEA
Group CEA has 4 modes:
mode 4: 1280x720 @ 60Hz 16:9, clock:74MHz progressive
mode 16: 1920x1080 @ 60Hz 16:9, clock:148MHz progressive
mode 95: 3840x2160 @ 30Hz 16:9, clock:297MHz progressive
mode 97: 3840x2160 @ 60Hz 16:9, clock:594MHz progressive

# tvservice -m DMT
Group DMT has 1 modes:
(prefer) mode 4: 640x480 @ 60Hz 4:3, clock:25MHz progressive

# tvservice -s
state 0x6 [DVI CUSTOM RGB full 4:3], 1024x768 @ 60.00Hz, progressive

# tvservice -d edid.dat
Nothing written!

# uname -a
Linux V2A2 4.19.57-v7l+ #1244 SMP Thu Jul 4 18:48:07 BST 2019 armv7l GNU/Linux

# cat /boot/config.txt |grep -v \#
disable_overscan=1
hdmi_force_hotplug=1
hdmi_group=2
hdmi_mode=4
hdmi_drive=1
config_hdmi_boost=5
dtparam=audio=on
[pi4]
dtoverlay=vc4-fkms-v3d
max_framebuffers=2
[all]

I am able to ssh/vnc.

I could get display if i connected different HDMI monitor (monitor has HDMI port)

Any help that would reduce my invest on new HDMI port monitor.


The HDMi Port nearest the power connector is the default AFAIAA...


I personally have had issues with "convertors / adaptors" I always buy a decent cable with the correct plugs on each end these days.

https://www.amazon.co.uk/SIENOC-1-8m-Go ... B06X924SDD
adieu

Asus CS10 Chromebit / HP Envy 4500 Wireless Printer / Raspberry Pi Model 2B v1.1 / RealVNC Software...

W. H. Heydt
Posts: 10625
Joined: Fri Mar 09, 2012 7:36 pm
Location: Vallejo, CA (US)

Re: Help required HDMI - DVI monitor display (no display)

Sun Jul 21, 2019 3:32 pm

fruitoftheloom wrote:
Sun Jul 21, 2019 3:07 pm
I personally have had issues with "convertors / adaptors" I always buy a decent cable with the correct plugs on each end these days.

https://www.amazon.co.uk/SIENOC-1-8m-Go ... B06X924SDD
Nice find. I'll have to keep an eye on Monoprice to see if they get any. Although, I've never had any problems with HDMI to DVI adapters working.

For the OP...trying using an unmodified config.txt. When it comes to getting the monitor working, the only parameters I bother changing are force HDMI and overscan.

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