1. When the problem is happening, does the kernel log show any problems? (run: dmesg)
2. When the problem is happening, what do you get from running these commands? ls -l /proc/`pidof Xorg`/fd | wc -l ls -l /proc/`pidof Xorg`/fd 3. When the problem is happening, what do you get from: ps auxw | grep Xorg 4. Please try the same test with "Ubuntu on Wayland" and tell us if it has the same bug. ** Changed in: xorg-server (Ubuntu) Status: New => Incomplete -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1837683 Title: Screen stops updating after about 8 hours - (EE) modeset(0): present flip failed To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/xorg-server/+bug/1837683/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs