Felix Miata composed on 2020-03-25 20:59 (UTC-0400): > Felix Miata composed on 2020-03-25 19:30 (UTC-0400): >> Alex Deucher composed on 2020-03-25 13:22 (UTC-0400): >>> Felix Miata wrote: >>>> 01:00.0 VGA compatible controller [0300]: Advanced Micro Devices, Inc. >>>> [AMD/ATI] RV200 [Radeon 7500/7500 LE] [1002:5157] >>>> Debian Buster and Mageia 7 are OK, but with Fedora 30 and Tumbleweed with >>>> kernels newer than 5.3.x, solid background and mouse pointer are all that >>>> paint properly: http://fm.no-ip.com/SS/rv200corrupt.png >>>> Is this a known problem? If not, whose bug tracker do I file this on, and >>>> which component? >>> Can you bisect? The relevant radeon code in all of these components >>> hasn't really been touched in ages. Maybe related to this: >>> https://lkml.org/lkml/2019/12/14/263 >>> but that was kernel 5.4 not 5.3. >> I spent a bunch of time looking for in between kernels to try. In the >> process I >> tried also with RV250 and RV380 without being able to repro. Eventually I >> stumbled >> onto radeon.agpmode=-1, which worked around the corruption well enough on >> Fedora >> and Tumbleweed. >> I got luckier and found after reading your lkml URL >> https://bugs.mageia.org/show_bug.cgi?id=26237 >> reported against kernel-desktop-5.5.4-1.mga7-1-1.mga7 to produce corrupt Xorg >> video described much like observed here. That bug reports fixed with >> kernel-desktop-5.5.6-1.mga7. I found and installed 5.5.4 and confirm it's >> broken, >> and that it's fixed in 5.5.6-2.mga7, which explains why I failed to >> experience >> this in Mageia, where I had jumped from 5.3.13 to 5.4.17. >> Apparently whatever Mageia did should be upstreamed if it hasn't been lately. >> Fedora's 5.5.10 remains bad. >>From Mageia kernel-desktop changelogs: > update to 5.5.6 20200312: > - work around radeon regression introduced in 5.4 series (mga#26237) > * Revert "drm/radeon: simplify and cleanup setting the dma mask" > * Revert "drm/radeon: handle PCIe root ports with addressing limitations" > update to 5.4.6 20200215: > - Revert "drm/radeon: simplify and cleanup setting the dma mask" > - Revert "drm/radeon: handle PCIe root ports with addressing limitations"
I reported a bug: https://bugzilla.kernel.org/show_bug.cgi?id=206973 [AMD/ATI] RV200 [Radeon 7500/7500 LE] [1002:5157] overwhelming video corruption in Xorg -- Evolution as taught in public schools is religion, not science. Team OS/2 ** Reg. Linux User #211409 ** a11y rocks! Felix Miata *** http://fm.no-ip.com/ _______________________________________________ amd-gfx mailing list amd-gfx@lists.freedesktop.org https://lists.freedesktop.org/mailman/listinfo/amd-gfx