I was running Xubuntu 14.04 on a notebook with AMD A8 4500M CPU and dual graphics (HD 7640G + HD 8500M). I chose to upgrade to release 14.10 and then to 15.04, so I wiped the fglrx proprietary driver clean, as recommended, then upgraded.
Now I installed the AMD driver and hardware acceleration packages as described here and everything seems to work fine, except I get this when running
error: XDG_RUNTIME_DIR not set in the environment. libva info: VA-API version 0.37.0 libva info: va_getDriverName() returns 0 libva info: Trying to open /usr/lib/x86_64-linux-gnu/dri/fglrx_drv_video.so libva info: Found init function __vaDriverInit_0_32 xvba_video: XVBA_CreateContext(): status 11 libva error: /usr/lib/x86_64-linux-gnu/dri/fglrx_drv_video.so init failed libva info: va_openDriver() returns -1 vaInitialize failed with error code -1 (unknown libva error),exit
Now I'm wondering if this means hardware acceleration is not working at all, which wouldn't surprise me, given the overall poor performance of this machine with Ubuntu.
Is there something I can do about this?
Update: I did a fresh install of Ubuntu 14.04 w/ open source driver and forgot about about all the fglrx issues :) Now I get slightly better performance and much better battery life.