| 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 | nouveau@lists.freedesktop.org |
| Reporter | brianclinkenbeard@protonmail.com |
| QA Contact | xorg-team@lists.x.org |
Created attachment 145545 [details] 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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