Created attachment 139483 [details]
full dmesg

The Radeon HD 3450 acceleration support does not work on my computer.

uname -a:
Linux mouse 4.17.0-041700rc4-generic #201805070430 SMP Mon May 7 04:31:46 UTC
2018 x86_64 x86_64 x86_64 GNU/Linux

In the dmesg I get:

[ 4.007419] [drm:r600_ring_test [radeon]] *ERROR* radeon: ring 0 test failed
(scratch(0x8504)=0xCAFEDEAD)
[ 4.007433] radeon 0000:02:00.0: disabling GPU acceleration