I'm also wondering why the bug is specific to the OLED models. We
patched the kernel specifically to support those systems in:
* Screen sometimes can't update [Failed to post KMS update: CRTC property
(GAMMA_LUT) not found] (LP: #1967274)
- drm/i915/xelpd: Enable Pipe color support for D13 platform
- drm/i915: Use unlocked register accesses for LUT loads
- drm/i915/xelpd: Enable Pipe Degamma
- drm/i915/xelpd: Add Pipe Color Lut caps to platform config
But then we also fixed mutter so the kernel fix isn't strictly needed
for testing other than to support Night Light. I'm wondering if a
mainline kernel behaves any differently?
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https://bugs.launchpad.net/bugs/1976204
Title:
Screen freeze
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