FS#77238 - External display is not being detected and not working

Attached to Project: Arch Linux
Opened by Simon Rusinov (pinkolik) - Monday, 23 January 2023, 08:46 GMT
Last edited by Toolybird (Toolybird) - Saturday, 22 April 2023, 21:10 GMT
Task Type Bug Report
Category Kernel
Status Closed
Assigned To No-one
Architecture All
Severity Medium
Priority Normal
Reported Version
Due in Version Undecided
Due Date Undecided
Percent Complete 100%
Votes 1
Private No

Details

I have a laptop of a following configuration
```
00:02.0 VGA compatible controller: Intel Corporation Alder Lake-P Integrated Graphics Controller (rev 0c)
01:00.0 3D controller: NVIDIA Corporation GA107M [GeForce RTX 3050 Mobile] (rev a1)
```
I am trying to connect an external display via HDMI port but with no success. I've reached out for help in Arch forum but nobody could help me, so I'm pretty sure it's a bug.
Here's the topic https://bbs.archlinux.org/viewtopic.php?id=282968
I believe the problem is i915 driver.
   jrnl.log (415.2 KiB)
This task depends upon

Closed by  Toolybird (Toolybird)
Saturday, 22 April 2023, 21:10 GMT
Reason for closing:  No response
Additional comments about closing:  If still an issue, please report upstream.
Comment by Toolybird (Toolybird) - Monday, 23 January 2023, 18:51 GMT
> I'm pretty sure it's a bug

Yes, but not an Arch packaging bug, it's an *upstream* bug. Which means you'll need to report it and/or seek help upstream. But it's probably worth trying a mainline kernel first to see if the problem is already fixed or not. Please see the pinned comment here [1] for a precompiled mainline kernel you can install. Otherwise, the general kernel troubleshooting steps are documented here [2]. Please let us know what you find out.

[1] https://aur.archlinux.org/packages/linux-mainline
[2] https://wiki.archlinux.org/title/Kernel#Troubleshooting
Comment by Simon Rusinov (pinkolik) - Tuesday, 24 January 2023, 17:38 GMT
Hello! Thanks for the reply.
So I compiled and installed linux-mainline from the source. It looks like the problem is still here because I see a similar stacktrace and HDMI still not working. Here's boot logs
   jrnl-mainline.log (304.2 KiB)
Comment by Toolybird (Toolybird) - Thursday, 23 March 2023, 02:47 GMT
> I believe the problem is i915 driver

i915 issues can be reported upstream here [1]

[1] https://gitlab.freedesktop.org/drm/intel/-/wikis/How-to-file-i915-bugs

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