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Tasklist

FS#71080 - Native display stop working after update Linux 5.11.16 -> 5.12.1.

Attached to Project: Arch Linux
Opened by Ilia (volkodev) - Tuesday, 01 June 2021, 08:50 GMT
Last edited by Andreas Radke (AndyRTR) - Wednesday, 02 June 2021, 17:58 GMT
Task Type Bug Report
Category Kernel
Status Assigned
Assigned To Jan Alexander Steffens (heftig)
Architecture x86_64
Severity Critical
Priority Normal
Reported Version
Due in Version Undecided
Due Date Undecided
Percent Complete 0%
Votes 2
Private No

Details

After update from kernel 5.11 to 5.12 native display stop working after GRUB loading. External display working fine via DP connection. Current kernel version is 5.12.8 and bug still not fixed.

My laptop thinkpad t440p.

Print screen work normally, Xorg did not show any errors, xrandr find native display as normal, but it is black and not working.

Two attached files were made in same time.
This task depends upon

2021-10-22: A task closure has been requested. Reason for request: linux updated 5.14 solved the problem. The reason still unknown.
Comment by Ilia (volkodev) - Monday, 28 June 2021, 08:26 GMT
Host: 20AN0069US ThinkPad T440p
CPU: Intel i7-4700MQ (8) @ 3.400GHz
GPU: Intel 4th Gen Core Processor
Comment by tou_ca (tou_cagmx.com) - Tuesday, 03 August 2021, 09:39 GMT
Same bug has been reported here

https://bugzilla.redhat.com/show_bug.cgi?id=1965645

and here

https://gitlab.freedesktop.org/drm/intel/-/issues/3714

I'm experiencing this also on Ubuntu with kernels over 5.11.0-22
Comment by tou_ca (tou_cagmx.com) - Sunday, 26 September 2021, 07:01 GMT
Update to 5.14.7-arch1-1 solved de problem for me
Comment by Ilia (volkodev) - Friday, 22 October 2021, 15:06 GMT
linux 5.14 problem solved

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