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#1 2019-09-10 13:27:53

Registered: 2019-08-04
Posts: 2

xrandr doesn't recognize HDMI input anymore (Thinkpad X1)

My X11 server crashed today (I installed the game Celeste and then one of my windows hang, I had to reboot). And after that reboot, external displays are not rexcognized anymore.

When I open xrandr, it just displays the internal display.

I went through the logs but couldn't find much. I re-installed libinput, with no success.

This is while an external HDMI monitor is plugged in:

$ lspci | grep VGA
00:02.0 VGA compatible controller: Intel Corporation UHD Graphics 620 (rev 07)


$ xrandr --listproviders
Providers: number : 1
Provider 0: id: 0x49 cap: 0xb, Source Output, Sink Output, Sink Offload crtcs: 4 outputs: 6 associated providers: 0 name:Intel


#2 2019-09-10 14:36:12

Registered: 2012-09-03
Posts: 15,327

Re: xrandr doesn't recognize HDMI input anymore (Thinkpad X1)

Please post the full outputs of "lspci", "xrandr -q", "dmesg" and you xorg log.


#3 2019-09-10 15:53:18

From: Pasadena, CA
Registered: 2009-07-13
Posts: 17,265

Re: xrandr doesn't recognize HDMI input anymore (Thinkpad X1)

And, as a sanity check, the output of uname -a and of pacman -Q linux
(Assuming you are using the mainstream kernel.  Change that second command as required if you are using an alternate kernel)

Nothing is too wonderful to be true, if it be consistent with the laws of nature -- Michael Faraday
Sometimes it is the people no one can imagine anything of who do the things no one can imagine. -- Alan Turing
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