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
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https://bugs.launchpad.net/bugs/1283938
Title:
[Samsung NP535U4X-S01TH] Ubuntu 14.04 blank screen after wakeup from
sleep
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