Smplayer was playing a movie, the PC suspended. At resume, all screens looked like analog noise, and the playing movie was stuck looping on a few frames. Closing smplayer and starting the movie again worked fine though. In dmesg, the only relevant lines during suspend are : [27911.777744] sd 6:0:1:0: [sdc] Stopping disk [27912.215648] radeon 0000:01:00.0: couldn't schedule ib [27912.215672] [drm:radeon_uvd_suspend [radeon]] *ERROR* Error destroying UVD (-22)! [27912.387056] PM: suspend of devices complete after 651.111 msecs And during resume : [27912.467612] [drm] PCIE GART of 1024M enabled (table at 0x0000000000274000). [27912.467683] radeon 0000:01:00.0: WB enabled [27912.467685] radeon 0000:01:00.0: fence driver on ring 0 use gpu addr 0x0000000080000c00 and cpu addr 0xffff88012a3d8c00 [27912.468456] radeon 0000:01:00.0: fence driver on ring 5 use gpu addr 0x0000000000072118 and cpu addr 0xffffc90001032118 [27912.468457] radeon 0000:01:00.0: fence driver on ring 1 use gpu addr 0x0000000080000c04 and cpu addr 0xffff88012a3d8c04 [27912.468459] radeon 0000:01:00.0: fence driver on ring 2 use gpu addr 0x0000000080000c08 and cpu addr 0xffff88012a3d8c08 [27912.468461] radeon 0000:01:00.0: fence driver on ring 3 use gpu addr 0x0000000080000c0c and cpu addr 0xffff88012a3d8c0c [27912.468462] radeon 0000:01:00.0: fence driver on ring 4 use gpu addr 0x0000000080000c10 and cpu addr 0xffff88012a3d8c10
Forgot to specify my card : 01:00.0 VGA compatible controller: Advanced Micro Devices, Inc. [AMD/ATI] Cayman PRO [Radeon HD 6950]
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