Comment 195 for bug 1283938

I started seeing random freeze while resuming from sleep/hibernate on my 5 year old system after I switched to ATI open source drivers, since the Catalyst drivers are no longer supported for my hardware on trusty and precise. The open source driver claims to better or same as the Catalyst, but looks like this is not the case.

Mar 1 02:45:29 xxxx kernel: [37059.698724] [drm:uvd_v1_0_ib_test] *ERROR* radeon: fence wait failed (-35).
Mar 1 02:45:29 xxxx kernel: [37059.698727] [drm:radeon_ib_ring_tests] *ERROR* radeon: failed testing IB on ring 5 (-35).

    description: VGA compatible controller
     product: RV730 XT [Radeon HD 4670]
     vendor: Advanced Micro Devices, Inc. [AMD/ATI]
     physical id: 0
      bus info: pci@0000:01:00.0
      version: 00
      width: 64 bits
      clock: 33MHz
      capabilities: pm pciexpress msi vga_controller bus_master cap_list rom
      configuration: driver=radeon latency=0
      resources: irq:43 memory:d0000000-dfffffff memory:fdfe0000-fdfeffff ioport:ee00(size=256) memory:fdf00000-fdf1ffff