I am building a NAS and doing some testing and fiddling using a Ubuntu live DVD (there are no HDDs in there yet).
Unfortunately, when I maximize a window, it won't get updated until I switch to another window and back again, or if I move the mouse over the entire window.
Normal window:
Clutter after maximizing:
From what I've read on various pages (here, here (German), here (German) or here), I have to switch the graphic acceleration mode to something called UXA to prevent this from happening. Here's how I do it:
sudo -i
echo -e 'Section "Device"\n\tIdentifier "Intel Graphics"\n\tDriver "i915"\n\tOption "AccelMethod" "uxa"\nEndSection' > /etc/X11/xorg.conf
echo -e 'Section "Device"\n\tIdentifier "Intel Graphics"\n\tDriver "i915"\n\tOption "AccelMethod" "uxa"\nEndSection' > /usr/share/X11/xorg.conf.d/20-intel.conf
pkill X
But this does not help. I've also tried to write xaa instead of uxa or adding Option "NoAccel" "True", this does not help either.
- Do I write to the wrong locations?
- Do I write something wrong?
- Do I have to restart X in another way (many websites say "...then just reboot.", but I cannot do that with a live DVD!)?
The screenshots have been taken over IPMI.
Updates
- Raffa suggested booting with
nomodeset, this doesn't help. - Raffa suggested reloading X with
sudo systemctl restart gdm gdm3, that doesn't help as well.
nomodesetboot option doesn't solve the issue. – Kurtibert May 02 '20 at 21:35sudo systemctl restart gdm gdm3– Raffa May 02 '20 at 22:00