[Bug 1896091] Re: [i915] Noise-like lines of graphics corruption when moving windows in Xorg sessions (regression in 5.8.0-19-generic but 5.8.0-18-generic works)
I went back further in the history of i915 changes and found the offending commit: https://git.launchpad.net/~ubuntu- kernel/ubuntu/+source/linux/+git/groovy/commit/?id=c1484c9939 If you revert c1484c9939 then the bug goes away. ** Summary changed: - [i915] Noise-like lines of graphics corruption when moving windows in Xorg sessions (regression in 5.8.0-19-generic but 5.8.0-18-generic works) + [i915] Noise-like lines of graphics corruption when moving windows in Xorg sessions -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1896091 Title: [i915] Noise-like lines of graphics corruption when moving windows in Xorg sessions To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1896091/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1896091] Re: [i915] Noise-like lines of graphics corruption when moving windows in Xorg sessions (regression in 5.8.0-19-generic but 5.8.0-18-generic works)
I think I might have got some incorrect results in comment #39. Because the bug still occurs when I build from git all the way back to Ubuntu-5.8.0-13.14. Also reverting the four commits in comment #42 does not fix it. The only thing that solves the bug is going to a mainline kernel/branch/tag. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1896091 Title: [i915] Noise-like lines of graphics corruption when moving windows in Xorg sessions (regression in 5.8.0-19-generic but 5.8.0-18-generic works) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1896091/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1896091] Re: [i915] Noise-like lines of graphics corruption when moving windows in Xorg sessions (regression in 5.8.0-19-generic but 5.8.0-18-generic works)
Two days later... my bisection has failed. Also probably related -- in git the tag Ubuntu-5.8.0-18.19 has the bug, but not in the binary release. Perhaps I need to be more careful with the configs used instead of defaulting. Or maybe I will just start hacking around the aforementioned commits. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1896091 Title: [i915] Noise-like lines of graphics corruption when moving windows in Xorg sessions (regression in 5.8.0-19-generic but 5.8.0-18-generic works) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1896091/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1896091] Re: [i915] Noise-like lines of graphics corruption when moving windows in Xorg sessions (regression in 5.8.0-19-generic but 5.8.0-18-generic works)
Yea, so only two commits need to be tested. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1896091 Title: [i915] Noise-like lines of graphics corruption when moving windows in Xorg sessions (regression in 5.8.0-19-generic but 5.8.0-18-generic works) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1896091/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1896091] Re: [i915] Noise-like lines of graphics corruption when moving windows in Xorg sessions (regression in 5.8.0-19-generic but 5.8.0-18-generic works)
Can I assume "tgl+" means it's code I don't use on Kaby Lake? -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1896091 Title: [i915] Noise-like lines of graphics corruption when moving windows in Xorg sessions (regression in 5.8.0-19-generic but 5.8.0-18-generic works) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1896091/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1896091] Re: [i915] Noise-like lines of graphics corruption when moving windows in Xorg sessions (regression in 5.8.0-19-generic but 5.8.0-18-generic works)
Four commits to test: $ git log --pretty=oneline Ubuntu-5.8.0-18.19..Ubuntu-5.8.0-19.20 drivers/gpu/drm/i915 ae8bb7c11c7e5379394557469a777885e0644ce4 drm/i915/tgl+: Fix TBT DPLL fractional divider for 38.4MHz ref clock 6337b734a9d7ab1467538229716755b5ba40f8fa drm/i915/tgl+: Use the correct DP_TP_* register instances in MST encoders a6a73a8b0b90cae710ab604ca973301a8e0ed851 drm/i915: Fix sha_text population code 10de2b0ee536988cb1a4dd605950b0f616611ac8 drm/i915: Fix cmd parser desc matching with masks -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1896091 Title: [i915] Noise-like lines of graphics corruption when moving windows in Xorg sessions (regression in 5.8.0-19-generic but 5.8.0-18-generic works) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1896091/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1896091] Re: [i915] Noise-like lines of graphics corruption when moving windows in Xorg sessions (regression in 5.8.0-19-generic but 5.8.0-18-generic works)
Enabling PSR does not fix it. The bug remains. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1896091 Title: [i915] Noise-like lines of graphics corruption when moving windows in Xorg sessions (regression in 5.8.0-19-generic but 5.8.0-18-generic works) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1896091/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
