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Merge pull request #237 from taradiddles/inteldoc

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Add mention about disabling PSR to fix tearing
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awokd 2022-12-17 18:10:26 +00:00 committed by GitHub
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docs/troubleshooting/intel-igfx-troubleshooting.md
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@ -64,6 +64,10 @@ Workarounds:
A logout/login is then required. A logout/login is then required.
Intel's PSR (Panel Self Refresh) may also cause tearing issues; it can be
disabled globally in GRUB2/EFI with the `i915.enable_psr=0` boot option. If
this does fix tearing, a bad panel firmware is likely the cause.
## Finding out which of `intel` or `fbdev` driver is in use: ## Finding out which of `intel` or `fbdev` driver is in use:
* `grep -E 'LoadModule.*(fbdev|intel)"' /var/log/Xorg.0.log`; eg. for `intel`: * `grep -E 'LoadModule.*(fbdev|intel)"' /var/log/Xorg.0.log`; eg. for `intel`: