Thank you for the well written bug report.
The first thing to check is that it's not a particular app problem, so
while the problem is happening please run 'top' to check which processes
are using high CPU.
If Firefox is using the most CPU then look at about:support and search
for "GPU #" to check it's using hardware acceleration.
If no processes are using high CPU while the problem is happening then
it may be related to bug 2081140, which we will have a fix for in Ubuntu
26.04. Although bug 2081140 is only a problem if your browser is
mistakenly using NVIDIA when it should be using AMD by default. So check
your BIOS to make sure the integrated AMD GPU is the primary one (and
that Firefox is using AMD, not NVIDIA).
If you can't find a suitable solution in the short term then I can only
recommend staying with Ubuntu 24.04 and Xorg until 26.04 is finished.
** Package changed: xorg (Ubuntu) => ubuntu
** Changed in: ubuntu
Status: New => Incomplete
** Tags added: hybrid multigpu
--
You received this bug notification because you are a member of Ubuntu
Bugs, which is subscribed to Ubuntu.
https://bugs.launchpad.net/bugs/2137297
Title:
Slowdown and stability issues on hybrid graphics system
To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+bug/2137297/+subscriptions
--
ubuntu-bugs mailing list
[email protected]
https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
