Created attachment 113333 [details]
dmesg booted with drm.debug

On Radeon Hawaii board the GPU acceleration is disabled.
Since the new HSA driver is designed for 64-bit kernels only, the current
Radeon accelaration should be fixed for 32-bit systems.

[    0.883020] [drm] Supports vblank timestamp caching Rev 2 (21.10.2013).
[    0.883020] [drm] Driver supports precise vblank timestamp query.
[    0.883036] radeon 0000:01:00.0: radeon: using MSI.
[    0.883053] [drm] radeon: irq initialized.
[    1.026624] [drm:cik_ring_test] *ERROR* radeon: ring 0 test failed
(scratch(0x3010C)=0xCAFEDEAD)
[    1.026678] radeon 0000:01:00.0: disabling GPU acceleration