[RFC PATCH 0/1] drm/i915/display: Avoid unsupported 300Hz output mode on a TUXEDO device
Werner Sembach
wse at tuxedocomputers.com
Fri Jul 4 19:22:51 UTC 2025
Forgot to add Tim to the cover letter cc (I have not yet found a nice way to
auto generate cover letter to's and cc's unlike for the actual patches)
Am 04.07.25 um 21:03 schrieb Werner Sembach:
> RFC because I'm not sure if this is the right approach.
>
> The flicker manifests ever few seconds 1-3 black frames in quick
> succession.
>
> On windows 300Hz can not be selected for the iGPU, but the panel advertises
> it.
>
> A cleaner solution would probably to go over the pixel clock, but for this
> device there is only one 300Hz mode in the panels edid and that is at the
> nativ resolution. Chroma subsampling was not tested as linux afaik offers
> no way to easily enforce it for intel gpus.
>
> Tim Guttzeit (1):
> drm/i915/display: Avoid unsupported output mode with 300Hz on TUXEDO
> device
>
> drivers/gpu/drm/i915/display/intel_dp.c | 5 ++++
> drivers/gpu/drm/i915/display/intel_quirks.c | 30 +++++++++++++++++++++
> drivers/gpu/drm/i915/display/intel_quirks.h | 1 +
> 3 files changed, 36 insertions(+)
>
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