[Bug 108020] Screen artifacting with 4.18+ kernels on AMD Radeon Vega 64 & 1440p 120hz+ monitors
https://bugs.freedesktop.org/show_bug.cgi?id=108020
Bug ID: 108020 Summary: Screen artifacting with 4.18+ kernels on AMD Radeon Vega 64 & 1440p 120hz+ monitors Product: DRI Version: XOrg git Hardware: Other OS: All Status: NEW Severity: normal Priority: medium Component: DRM/AMDgpu Assignee: dri-devel@lists.freedesktop.org Reporter: mokurai82@gmail.com
I'm experiencing some interlacing on the right side of the screen of my 1440p 144hz monitor when using 4.18+ kernels and setting the monitor to 120+ hz It works fine with 100hz and lower, or older kernels, which seems to indicate some displayport bandwidth issue/regression. This happens regardless of the distro or mesa version. I'm using an RX Vega 64 with the opensource driver.
https://bugs.freedesktop.org/show_bug.cgi?id=108020
Michel Dänzer michel@daenzer.net changed:
What |Removed |Added ---------------------------------------------------------------------------- CC| |harry.wentland@amd.com, | |nicholas.kazlauskas@amd.com | |, sunpeng.li@amd.com
--- Comment #1 from Michel Dänzer michel@daenzer.net --- Please attach the dmesg output.
https://bugs.freedesktop.org/show_bug.cgi?id=108020
--- Comment #2 from Nicholas Kazlauskas nicholas.kazlauskas@amd.com --- This is likely fixed. It may be worth testing the amd-staging-drm-next kernel from:
https://cgit.freedesktop.org/~agd5f/linux/
or applying the proposed patch from the bug report at:
https://bugzilla.kernel.org/show_bug.cgi?id=201067
Please let me know if you're seeing an issue with either of these.
https://bugs.freedesktop.org/show_bug.cgi?id=108020
--- Comment #3 from Arek Tumas mokurai82@gmail.com --- Created attachment 141710 --> https://bugs.freedesktop.org/attachment.cgi?id=141710&action=edit dmesg
https://bugs.freedesktop.org/show_bug.cgi?id=108020
--- Comment #4 from Arek Tumas mokurai82@gmail.com --- Yes it is probably the same bug. It's a right-most vertical interlaced line. I'm currently experiencing this bug in the newest ubuntu mainline kernel (4.19-rc5). [It's not an issue on 4.18.8 kernel] I'm relatively inexperienced, Applying kernel patches seems a little difficult for me. I only know how to install mainline kernels from ukuu or .deb files. I can try if someone links me clear instructions. Thank You for Your time and help. I hope this will be fixed in future Linux kernel versions.
https://bugs.freedesktop.org/show_bug.cgi?id=108020
Martin Peres martin.peres@free.fr changed:
What |Removed |Added ---------------------------------------------------------------------------- Status|NEW |RESOLVED Resolution|--- |MOVED
--- Comment #5 from Martin Peres martin.peres@free.fr --- -- GitLab Migration Automatic Message --
This bug has been migrated to freedesktop.org's GitLab instance and has been closed from further activity.
You can subscribe and participate further through the new bug through this link to our GitLab instance: https://gitlab.freedesktop.org/drm/amd/issues/537.
dri-devel@lists.freedesktop.org
-
bugzilla-daemon＠freedesktop.org