SOLUTION
I have a intel g45 4500mhd graphics card.
add the following ppa ppa:wsnipex/vaapi
open terminal
sudo apt-get update
sudo apt-get install libva1 libva-intel-vaapi-driver vainfo
sudo apt-get upgrade
mkdir temp
cd temp
sudo apt-get build-dep libva
sudo apt-get install libx11-dev libtool libdrm-dev build-essential autoconf libva-dev
git clone git://anongit.freedesktop.org/vaapi/intel-driver intel-driver -b g45-h264
cd intel-driver
./autogen.sh
./configure
make
sudo make install
Execute the commands above one by one.Check if you really don't get any error or warning. if so, do as follows
cd ..
rm -r intel-driver
install all missing packages ( you have to find out which is missing by the missing command in the error messages)
start over at the git clone command
My vainfo output:
~/tmp/intel-driver $ vainfo
libva info: VA-API version 0.34.0
libva info: va_getDriverName() returns 0
libva info: Trying to open /usr/lib/x86_64-linux-gnu/dri/i965_drv_video.so
libva info: Found init function __vaDriverInit_0_34
libva info: va_openDriver() returns 0
vainfo: VA-API version: 0.34 (libva 1.2.0)
vainfo: Driver version: Intel i965 driver - 1.2.1.pre1
vainfo: Supported profile and entrypoints
VAProfileMPEG2Simple : VAEntrypointVLD
VAProfileMPEG2Main : VAEntrypointVLD
VAProfileH264Baseline : VAEntrypointVLD
VAProfileH264Main : VAEntrypointVLD
VAProfileH264High : VAEntrypointVLD
1080p works with the smplayer version mentioned here but cpu usage is up to 60% on both cpus. but it's less than befor.
vlc somehow does not work, only have glitchy pics sometimes wird hw accell enabled. works without but high cpu usage then.
From here old stuff
This does not help.
Sadly the h264 decoding profiles are not activated for the intel 4500mhd chip. It is activated in the g45 h264 branch of the git repository of the intel drivers, but sadly they don't check it in the main.
Some time ago amnually compiling worked for me, but i've tried that the last to days again and can't make it work again.
even the drivers from
https://launchpad.net/~wsnipex/+archive/vaapi
do not activate the h264 support for the 4500mhd
libva info: VA-API version 0.34.0
libva info: va_getDriverName() returns 0
libva info: Trying to open /usr/lib/x86_64-linux-gnu/dri/i965_drv_video.so
libva info: Found init function __vaDriverInit_0_34
libva info: va_openDriver() returns 0
vainfo: VA-API version: 0.34 (libva 1.2.0)
vainfo: Driver version: Intel i965 driver - 1.2.0
vainfo: Supported profile and entrypoints
VAProfileMPEG2Simple : VAEntrypointVLD
VAProfileMPEG2Main : VAEntrypointVLD
maybe a more experienced linux user can try the instructions here
http://www.emmolution.org/?p=192
and can edit it to work on 13.04. i'm not totally new to linux but would prefer a simple step by step solution also.