Use legacy modesetting for gamma control
It doesn't look like there's any motion on a fix from the AMDGPU side, and using the legacy interface for this isn't so bad.
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@ -201,7 +201,9 @@ static bool atomic_crtc_set_gamma(struct wlr_drm_backend *drm,
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uint32_t size) {
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uint32_t size) {
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// Fallback to legacy gamma interface when gamma properties are not available
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// Fallback to legacy gamma interface when gamma properties are not available
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// (can happen on older intel gpu's that support gamma but not degamma)
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// (can happen on older intel gpu's that support gamma but not degamma)
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if (crtc->props.gamma_lut == 0) {
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// TEMP: This is broken on AMDGPU. Always fallback to legacy until they get
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// it fixed. Ref https://bugs.freedesktop.org/show_bug.cgi?id=107459
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if (crtc->props.gamma_lut == 0 || true) {
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return legacy_iface.crtc_set_gamma(drm, crtc, r, g, b, size);
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return legacy_iface.crtc_set_gamma(drm, crtc, r, g, b, size);
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}
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}
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