I am seeing a very similar issue on my Lenovo T480s while using the Intel UHD Graphics 620 (rev 7). A simple example is that YouTube videos in any browser (Chrome/Chromium/Firefox/etc.) while in the browser window play at 60fps but as soon as you use full screen it falls back to 30fps on the latest 5.4 kernels (-54,-53,-52). I did a quick test and booted a 4.15.0-123 kernel and that seemed to resolve the problem. Seems like a regression.
-- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1872001 Title: 5.3.0-46-generic - i915 - frequent GPU hangs / resets rcs0 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1872001/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
