Comment 60 for bug 1753776

(In reply to Daniel Stone from comment #13)

> a) inlined kernel patch to refuse getfb for modifiers we can't determine via
> implicit means, or multi-planar

Your provided kernel patch replaces the corruption with blackness, which was probably expected. So the seamless transition from gdm3 into gnome-shell (or whatever) is gone. We can achieve the same blackness workaround by removing '-background none' from the gdm3 source, but that hurts all users including Broadwell and earlier who are not yet affected by the bug.

> b) in whatever your DM (GDM? LightDM?) uses to create a KMS display,
> filtering the supported modifier set to DRM_FORMAT_MOD_LINEAR /
> I915_FORMAT_MOD_X_TILED / I915_FORMAT_MOD_Y_TILED

It's gdm3 so the code you want is mutter, right? I think we'd lean more toward patching the offending commit out of Mesa before we go proposing more mutter patches. I'm hesitant to do either right now. New ideas are welcome.