Thank you for reporting this bug to Ubuntu.
Ubuntu 23.10 (mantic) reached end-of-life on July 11, 2024.
See this document for currently supported Ubuntu releases:
https://wiki.ubuntu.com/Releases
We appreciate that this bug may be old and you might not be interested
in discussing it anymore.
The lag is occurring once again with MUTTER_DEBUG_KMS_THREAD_TYPE set to
`user`,
```
kevin@kevinbuntu:~$ echo $MUTTER_DEBUG_KMS_THREAD_TYPE
user
```
I've attached the output of `journalctl -b0` again. It was resolved by
putting the computer into standby then resuming.
** Attachment added:
Please try adding MUTTER_DEBUG_KMS_THREAD_TYPE=user to /etc/environment
and reboot. That will disable the new highly optimized cursor movement
code that was introduced in 23.10.
Also a reminder: 23.10 reaches end of life this month.
https://wiki.ubuntu.com/Releases
--
You received this bug
It's currently maxing out the first CPU core on my laptop. Putting it to
sleep solved the problem.
While gnome-shell was maxing out the CPU core, I captured the output of
journalctl. Hopefully there's nothing too sensitive in there. :-)
I had also disabled the extensions previously:
```
I completely forgot about bug 2063036 because I hadn't seen it in a
while.
Please try:
gnome-extensions disable d...@rastersoft.com
--
You received this bug notification because you are a member of Ubuntu
Bugs, which is subscribed to Ubuntu.
https://bugs.launchpad.net/bugs/2070313
Title:
Thanks. It's interesting that sleep-resume fixed it.
Next time the problem starts happening, please run:
journalctl -b0 > journal.txt
and attach the resulting text file here.
--
You received this bug notification because you are a member of Ubuntu
Bugs, which is subscribed to Ubuntu.
Thanks for the reply.
I noticed today that at just under 6 hours of uptime, the mouse became
quite laggy and gnome-shell was consuming an entire CPU again. I had
also removed my extensions (they had already been disabled).
I tried locking the computer with Super+L but that did not change
Thanks for the bug report. The only similar issue I'm aware of is that
sometimes the cursor can become laggy but that is also fixed by putting
the screen to sleep (Super+L) and waking it up again. That issue is so
rare that I haven't seen it in months.
If that doesn't work around your issue
** Attachment added: "Screenshot from 2024-06-24 14-11-30.png"
https://bugs.launchpad.net/ubuntu/+source/gnome-shell/+bug/2070313/+attachment/5792084/+files/Screenshot%20from%202024-06-24%2014-11-30.png
--
You received this bug notification because you are a member of Ubuntu
Bugs, which is
