https://bugs.freedesktop.org/show_bug.cgi?id=111841
Bug ID: 111841
Summary: Setting gamma or color temperature on GK104 causes
horizontal artifacts / flickering
Product: xorg
Version: unspecified
Hardware: x86-64 (AMD64)
OS: Linux (All)
Status: NEW
Severity: normal
Priority: not set
Component: Driver/nouveau
Assignee: [email protected]
Reporter: [email protected]
QA Contact: [email protected]
Created attachment 145545
--> https://bugs.freedesktop.org/attachment.cgi?id=145545&action=edit
dmesg log
After setting the gamma or color temperature through various methods (redshift
-m randr, redshift -m drm, GNOME night shift on xorg or wayland) horizontal
artifacts begin to flicker. This does not severely obscure the screen but
appears as small lines horizontal lines flickering quickly. This notably does
not happen using the "vidmode" method of redshift
(https://github.com/jonls/redshift/blob/master/src/gamma-vidmode.c). I've
tested this on multiple displays.
The effect is more noticeable on darker backgrounds.
Steps to reproduce:
1) Use GK104/NVE0 on Xorg or Wayland.
2) Try to adjust color temperature or gamma with software such as redshift (-m
randr or drm).
I've attached the dmesg log, note that I am not certain the gnome-shell
segfaults have anything to do with this issue.
Kernel:
Linux desktop 5.2.0-2-amd64 #1 SMP Debian 5.2.9-2 (2019-08-21) x86_64 GNU/Linux
Card:
NVIDIA Corporation GK104 [GeForce GTX 770]
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