After arguing back and forth whether I should do it or not, today I eventually decided to drop FGLRX for good see what the FOSS drivers have to offer. I upgraded my system to Linux 3.12RC7, updated the graphics stack with Oibaf's fantastic PPA and did all the configurations necessary to get the new DPM and VDPAU support to work. It has been a great experience so far and I regret not having switched to radeon earlier. And I'd also like to thank everyone here on the forum. Your detailed posts have been of tremendous help to me

The one thing I've been struggling with though, is getting VDPAU to work properly. I am using
Code:
libg3dvl-mesa
from oibaf's PPA but VLC and mplayer will only use VDPAU with MPEG videos.

Here are some diagnostics I did:

Code:
vdpauinfo
gives me the following output:

Code:
$ vdpauinfo
display: :0   screen: 0
API version: 1
Information string: G3DVL VDPAU Driver Shared Library version 1.0

Video surface:

name   width height types
-------------------------------------------
420    16384 16384  NV12 YV12 
422    16384 16384  UYVY YUYV 
444    16384 16384  Y8U8V8A8 V8U8Y8A8 

Decoder capabilities:

name               level macbs width height
-------------------------------------------
MPEG1                 0 1048576 16384 16384
MPEG2_SIMPLE          3 1048576 16384 16384
MPEG2_MAIN            3 1048576 16384 16384

Output surface:

name              width height nat types
----------------------------------------------------
B8G8R8A8         16384 16384    y  NV12 YV12 UYVY YUYV Y8U8V8A8 V8U8Y8A8 
R8G8B8A8         16384 16384    y  NV12 YV12 UYVY YUYV Y8U8V8A8 V8U8Y8A8 
R10G10B10A2      16384 16384    y  NV12 YV12 UYVY YUYV Y8U8V8A8 V8U8Y8A8 
B10G10R10A2      16384 16384    y  NV12 YV12 UYVY YUYV Y8U8V8A8 V8U8Y8A8 

Bitmap surface:

name              width height
------------------------------
B8G8R8A8         16384 16384
R8G8B8A8         16384 16384
R10G10B10A2      16384 16384
B10G10R10A2      16384 16384
A8               16384 16384

Video mixer:

feature name                    sup
------------------------------------
DEINTERLACE_TEMPORAL             -
DEINTERLACE_TEMPORAL_SPATIAL     -
INVERSE_TELECINE                 -
NOISE_REDUCTION                  y
SHARPNESS                        y
LUMA_KEY                         -
HIGH QUALITY SCALING - L1        -
HIGH QUALITY SCALING - L2        -
HIGH QUALITY SCALING - L3        -
HIGH QUALITY SCALING - L4        -
HIGH QUALITY SCALING - L5        -
HIGH QUALITY SCALING - L6        -
HIGH QUALITY SCALING - L7        -
HIGH QUALITY SCALING - L8        -
HIGH QUALITY SCALING - L9        -

parameter name                  sup      min      max
-----------------------------------------------------
VIDEO_SURFACE_WIDTH              y        48    16384
VIDEO_SURFACE_HEIGHT             y        48    16384
CHROMA_TYPE                      y  
LAYERS                           y         0        4

attribute name                  sup      min      max
-----------------------------------------------------
BACKGROUND_COLOR                 y  
CSC_MATRIX                       y  
NOISE_REDUCTION_LEVEL            y      0.00     1.00
SHARPNESS_LEVEL                  y     -1.00     1.00
LUMA_KEY_MIN_LUMA                y  
LUMA_KEY_MAX_LUMA                y
This is the output I get with qvdpautest:

Code:
qvdpautest 0.5.2
Intel(R) Core(TM) i5 CPU       M 450  @ 2.40GHz
Unknown GPU

VDPAU API version : 1
VDPAU implementation : G3DVL VDPAU Driver Shared Library version 1.0

FATAL: get_bits failed : No backend implementation could be loaded.!!

MPEG DECODING (1920x1080): 146 frames/s
MPEG DECODING (1280x720): 309 frames/s
Profile unsupported.
Profile unsupported.
Profile unsupported.
Profile unsupported.

radeon: The kernel rejected CS, see dmesg for more information.
radeon: The kernel rejected CS, see dmesg for more information.
radeon: The kernel rejected CS, see dmesg for more information.
radeon: The kernel rejected CS, see dmesg for more information.
radeon: The kernel rejected CS, see dmesg for more information.
radeon: The kernel rejected CS, see dmesg for more information.
radeon: The kernel rejected CS, see dmesg for more information.
radeon: The kernel rejected CS, see dmesg for more information.
radeon: The kernel rejected CS, see dmesg for more information.
radeon: The kernel rejected CS, see dmesg for more information.
radeon: The kernel rejected CS, see dmesg for more information.
radeon: The kernel rejected CS, see dmesg for more information.
radeon: The kernel rejected CS, see dmesg for more information.
radeon: The kernel rejected CS, see dmesg for more information.
[...]
Output of glxinfo.

Some more information on my machine:

- Ubuntu 12.04.3 LTS with Kernel 3.12RC7, precise Xorg stack and Oibaf's Mesa packages
- AMD HD5650 Mobility Radeon
- back on FGLRX I was able to get hardware accelerated H264 playback with
Code:
xvba-va-driver



Do you guys have any idea what could be wrong here? Did I muss anything while switching to the FOSS drivers? Is there something I still need to install/configure?

I'd really appreciate any input on this. At this point I am pretty much lost.


P.S.: Just in case this is related: Whatever flags I set in Chrome, I can't get webgl to work. It will work fine in FF but not in Chrome/Chromium. Any idea what could be wrong?