Created attachment 109443 [details]
corrupt display

After resuming from suspend on kernel 3.18-rc4 the graphics card locks

:

[55325.256071] [drm] enabling PCIE gen 2 link speeds, disable with
radeon.pcie_gen2=0
[55325.261268] [drm] PCIE GART of 1024M enabled (table at 0x000000000025E000).
[55325.261400] radeon 0000:03:00.0: WB enabled
[55325.261402] radeon 0000:03:00.0: fence driver on ring 0 use gpu addr
0x0000000040000c00 and cpu addr 0xffff8800d7caac00
[55325.261404] radeon 0000:03:00.0: fence driver on ring 3 use gpu addr
0x0000000040000c0c and cpu addr 0xffff8800d7caac0c
[55325.262271] radeon 0000:03:00.0: fence driver on ring 5 use gpu addr
0x000000000005c418 and cpu addr 0xffffc9000581c418
[55325.437301] [drm:r600_ring_test] *ERROR* radeon: ring 0 test failed
(scratch(0x8504)=0xCAFEDEAD)
[55325.437302] [drm:evergreen_resume] *ERROR* evergreen startup failed on
resume