I have a very simple solution that solved it for me.
I have an Acer Nitro with NVIDIA GeForce GTX 1650. After installing
Ubuntu 22.04, every time I attached an external monitor the Xorg CPU
usage was 25% - 33% even when nothing is running. This happens with
driver 470 and 510.
To fix it - run
My workaround is this. Instead of suspending via the "suspend" option in
logout, I run this script:
# X11 screens to disable when suspending, from xrandr
X11_DISABLE="HDMI-0 eDP-1-1"
for mon in $X11_DISABLE ; do
xrandr --output $mon --off
done
sleep 1
sudo systemctl suspend
sleep 5
for mon
I downgraded to 418 and it happened again. It happens with every version
available.
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https://bugs.launchpad.net/bugs/1850776
Title:
Kernel NULL
I upgraded to driver 450 and this happened again, about a week after the
last time. syslog available if needed.
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You received this bug notification because you are a member of Kernel
Packages, which is subscribed to nvidia-graphics-drivers-435 in Ubuntu.
https://bugs.launchpad.net/bugs/1850776
I am getting this error on Acer Nitro laptop with NVIDIA driver 440.
Using GeForce GTX 1650 Mobile / Max Q
Not on every suspend, about once per week.
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Packages, which is subscribed to nvidia-graphics-drivers-435 in Ubuntu.
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