My second screen is detected but it looks black

radia · 2021-12-06 21:17:03

I searched for something on the internet, but nothing helped me. I changed drivers from intel proprietary drivers to open source generic drivers, I changed from xorg to wayland, I also changed DE but nothing. This is my xrandr output:

Screen 0: minimum 320 x 200, current 2726 x 768, maximum 16384 x 16384
eDP-1 connected 1366x768+0+0 (normal left inverted right x axis y axis) 344mm x 194mm
1366x768 60.02*+
1280x720 60.00 59.99 59.86 59.74
1024x768 60.04 60.00
960x720 60.00
928x696 60.05
896x672 60.01
1024x576 59.95 59.96 59.90 59.82
960x600 59.93 60.00
960x540 59.96 59.99 59.63 59.82
800x600 60.00 60.32 56.25
840x525 60.01 59.88
864x486 59.92 59.57
700x525 59.98
800x450 59.95 59.82
640x512 60.02
700x450 59.96 59.88
640x480 60.00 59.94
720x405 59.51 58.99
684x384 59.88 59.85
640x400 59.88 59.98
640x360 59.86 59.83 59.84 59.32
512x384 60.00
512x288 60.00 59.92
480x270 59.63 59.82
400x300 60.32 56.34
432x243 59.92 59.57
320x240 60.05
360x202 59.51 59.13
320x180 59.84 59.32
VGA-1 disconnected (normal left inverted right x axis y axis)
DP-1 disconnected (normal left inverted right x axis y axis)
HDMI-1 connected 1360x768+1366+0 (normal left inverted right x axis y axis) 700mm x 390mm
1360x768 59.80*+
1920x1080 60.00 50.00 59.94 30.00 25.00 24.00 29.97 23.98
1920x1080i 60.00 50.00 59.94
1280x1024 60.02
1280x768 60.35
1280x720 59.65 60.00 50.00 59.94
1024x768 75.03 70.07 60.00
832x624 74.55
800x600 75.00 60.32
720x576 50.00
720x576i 50.00
720x480 60.00 59.94
720x480i 60.00 59.94
640x480 75.00 60.00 59.94
720x400 70.08

It can't be a screen issue as it works with other devices with the same HDMI cable.

Last edited by radia (2021-12-07 17:09:06)

seth · 2021-12-06 22:16:52

1. please wrap command outputs and file contents in code tags, https://bbs.archlinux.org/help.php#bbcode
2. "intel proprietary drivers" is not a thing - I assume you switched beween xf86-video-intel and the modesetting driver?
3. "changed from xorg to wayland" - the xrandr output is borderline meaningless on wayland

4. "I also changed DE" - what brings us to the more interesting questions:
- what desktop environments specifically did you test?
- does the output work on the text shell (see 2nd link below)
- define "looks black":
* can you move the mouse cursor there?
* does the monitor say sth. like "no signal"?
* does the bezel LED suggest the monitor is sleeping?
5. Did you check the systemd journal/dmesg? Any i915/drm related errors?

radia · 2021-12-07 17:05:30

I admit that I'm a little embarrassed, but man... the problem solved itself. I think I hadn't fixed the cable well (although I was sure of it ...), I'm really a dumb. Sorry for stealing your time and thanks for your support, but now I don't know what to do with this post, do I remove it? Do I mark it as resolved?

seth · 2021-12-07 17:20:04

You can either report it for deletion or mark it as solved.

Also, no need to be sorry.
Re-enforcement of the theory that the #1 cause of all isues is the cables #3546129431

ewaller · 2021-12-07 18:36:15

Mark it as solved. It is not a waste of time; it is a reminder that checking cables should happen early in the troubleshooting process.

Arch Linux

#1 2021-12-06 21:17:03

My second screen is detected but it looks black

#2 2021-12-06 22:16:52

Re: My second screen is detected but it looks black

#3 2021-12-07 17:05:30

Re: My second screen is detected but it looks black

#4 2021-12-07 17:20:04

Re: My second screen is detected but it looks black

#5 2021-12-07 18:36:15

Re: My second screen is detected but it looks black

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