Seems to be fixed now using full KMS. Full KMS required both:
* Kernel >= 5.10.7
* Bug 1918110 to be fixed, which it now is.
** Package changed: mutter (Ubuntu) => flash-kernel (Ubuntu)
** Changed in: flash-kernel (Ubuntu)
Status: Triaged => Fix Released
** Changed in: linux-raspi (U
Seems to depend on clock frequency, just like I see with Intel graphics.
If you spin the CPU at 100% like:
while true; do true; done
then the clock frequencies increase and desktop frame rates become very
smooth. But that's also when the tearing starts.
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The tearing still happens in hirsute, but only when you can convince the
system to render at 60Hz. Most of the time it's stuttering (30Hz) and
not tearing.
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Desktop Bugs, which is subscribed to mutter in Ubuntu.
https://bugs.
** Summary changed:
- Heavy screen tearing in Wayland sessions on Raspberry Pi 4-B
+ Heavy screen tearing in Wayland sessions on Raspberry Pi 4-B (using the FKMS
driver)
** Description changed:
- Heavy screen tearing in Wayland sessions on Raspberry Pi 4-B.
+ Heavy screen tearing in Wayland ses
