https://bugs.freedesktop.org/show_bug.cgi?id=33867 --- Comment #6 from Dave Witbrodt <dawitbro@xxxxxxxxxxxxx> 2011-02-05 11:04:22 PST --- Part 4: Request for guidance I would like to continue helping track this bug down. It is only causing a minor glitch for me, but it is clearly a regression and may have more of an impact on software I have not tested (or on other people's systems). The glitch I am observing reminds me of what was reported in bug #33918, specifically the difference between the 2 versions of 'test07.jpg' images. There is also the DRM error msg (see Comment 2) which appears when 'prboom-plus' exhibits the black fade/melt problem: [drm:radeon_cs_ioctl] *ERROR* Failed to parse relocation -35! My bisecting pointed directly at 6f34be50 drm/radeon/kms: add pageflip ioctl support (v3) which first causes hangs -- probably irrelevant, since the hangs cease once the patch series is completed -- and then leaves me with the all-black fades/melts once non-hanging kernels appear again after the TTM series. The driver issue in #33918 made me wonder: if the pageflip support is actually involved here, what if I go back to an old driver before pageflip support was added, and use the new kernel with the pageflip DRM bits? I have tested that, and here is my current situation: $ uname -r 2.6.37+drm2.6.38-rc3.110201.desktop.kms $ apt-cache policy xserver-xorg-video-radeon | grep "Installed" Installed: 1:6.13.99+git101203.f9bbb26 I am running my 2.6.37 + cherry-picks kernel with the radeon driver from the last commit before pageflip support was added. I get no glitches in 'prboom-plus', and all my test software works just fine. I hope these results are meaningful. I don't know how to proceed further, so if I could get some guidance I might be able to help pin the problem down even further. -- Configure bugmail: https://bugs.freedesktop.org/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are the assignee for the bug. _______________________________________________ dri-devel mailing list dri-devel@xxxxxxxxxxxxxxxxxxxxx http://lists.freedesktop.org/mailman/listinfo/dri-devel
