Next time the problems happens and the LG is only running at 30Hz, please run:
sudo apt install drm-info drm_info > drminfo.txt and attach the resulting text file here. This will tell us if the 30Hz limit is coming from the kernel and therefore it's either a kernel bug or a hardware problem in re-detecting the monitor. ** Package changed: mutter (Ubuntu) => ubuntu ** Changed in: ubuntu Status: New => Incomplete -- You received this bug notification because you are a member of Ubuntu Desktop Bugs, which is subscribed to mutter in Ubuntu. https://bugs.launchpad.net/bugs/2033647 Title: External monitor lowered to 30Hz when resuming from suspend To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+bug/2033647/+subscriptions -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs