I tried disabling, one at a time. Results are not very useful, I fear:
1 Disabling R600PrepareCopy resulted in slow FF scrolling
2 Disabling R600PrepareSolid: Xorg freeze
3 Disabling R600UploadToScreenCS: Xorg freeze
4 Disabling R600DownloadFromScreenCS: Xorg freeze
5 Disabling R600PrepareComposite: no freeze, just slow scrolling. I tried it for ~20 minutes, methods 2, 3, 4 crashed after <5 minutes.
The funny thing is, that I got no "Failed to parse relocation" dmesg errors. Maybe debian/ubuntu isn't using the git tag xf86-video-ati-6.13.0 as I did in these tests...
I tried disabling, one at a time. Results are not very useful, I fear:
1 Disabling R600PrepareCopy resulted in slow FF scrolling
2 Disabling R600PrepareSolid: Xorg freeze
3 Disabling R600UploadToScr eenCS: Xorg freeze
4 Disabling R600DownloadFro mScreenCS: Xorg freeze
5 Disabling R600PrepareComp osite: no freeze, just slow scrolling. I tried it for ~20 minutes, methods 2, 3, 4 crashed after <5 minutes.
The funny thing is, that I got no "Failed to parse relocation" dmesg errors. Maybe debian/ubuntu isn't using the git tag xf86-video- ati-6.13. 0 as I did in these tests...