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(+) -- 2.43.0