[Bug 75357] Barts (HD6850): Failure in evergreen_surface_check_2d

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=75357

--- Comment #8 from oogway.droid at gmail.com ---
I can confirm that disabling ColorTiling2D had a positive impact.
There were no black screens on resuming the monitor from powersave mode.
I ran the system for about 14 hours. Then I turned ColorTiling2D back on,
and hit the issue within 5 minutes. The monitor power LED is on when resumed
and I can see the backlight. I tried switching to VT and still a black screen.
I do see (via ssh) the the lines you mention (in comment 7) in my xorg.0.log
when trying to switch VTs. Let me know if you want the full log, following is a
snippet from the log:
...............
[   122.925] (II) RADEON(0): Modeline "1280x1024"x0.0  108.00  1280 1328 1440
1688  1024 1025 1028 1066 +hsync +vsync (64.0 kHz e)
[   122.925] (II) RADEON(0): Modeline "1920x1080"x60.0  172.80  1920 2040 2248
2576  1080 1081 1084 1118 -hsync +vsync (67.1 kHz e)
[   323.946] (II) AIGLX: Suspending AIGLX clients for VT switch
[   382.915] (II) AIGLX: Resuming AIGLX clients after VT switch
[   382.963] (II) RADEON(0): EDID vendor "DEL", prod id 41055
[   382.963] (II) RADEON(0): Using hsync ranges from config file
[   382.963] (II) RADEON(0): Using vrefresh ranges from config file
[   382.963] (II) RADEON(0): Printing DDC gathered Modelines:
[   382.963] (II) RADEON(0): Modeline "1920x1080"x0.0  148.50  1920 2008 2052
2200  1080 1084 1089 1125 +hsync +vsync (67.5 kHz eP)
......................
......................

And dmesg contains the previously mentioned error:
..........
[   15.485597] IPv6: ADDRCONF(NETDEV_CHANGE): wlp0s26f7u4: link becomes ready
[   95.056067] fuse init (API version 7.22)
[   95.070291] SELinux: initialized (dev fusectl, type fusectl), uses
genfs_contexts
[   95.096897] SELinux: initialized (dev fuse, type fuse), uses genfs_contexts
[  382.917539] radeon 0000:01:00.0: evergreen_surface_check_2d:277 texture
pitch 1920 invalid must be aligned with 512
[  382.917545] radeon 0000:01:00.0: evergreen_cs_track_validate_texture:826
texture invalid 0x1dfc3bc1 0x40000437 0x060a0000 0x00000000 0x80000000
0x800304da
[  382.917548] [drm:radeon_cs_ib_chunk] *ERROR* Invalid command stream !
...........

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