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mythtv and intel on CPU graphics

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jnissley at nissley

Jun 14, 2012, 5:46 AM

Post #1 of 19 (1622 views)
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mythtv and intel on CPU graphics

This is my first venture into graphics other than nvidia since it
appears that intel graphics has come a long way I thought I would give
it a try.

I started with a fresh fedora 16 build so really no xorg configuration
to speak of and the video works and the CPU is only running between 50
and 70 percent on opengl playback however I would really like to use the
intel acceleration however can not really seem to figure out how to do
that because every time I start messing with the xorg config my screen
will blank after 10 minutes even after I disable all screen saving
measures in KDE and start mythfrontend with xset dpms force on and xset
s off.

I have tried using the VAAPI Normal setting in the video set up since I
read that is for the intel graphics however using that setting uses as
much CPU as the High Quality video setting.

Any help would be appreciated.
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jyavenard at gmail

Jun 14, 2012, 8:24 AM

Post #2 of 19 (1596 views)
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Re: mythtv and intel on CPU graphics [In reply to]

On 14 June 2012 22:46, John Nissley <jnissley [at] nissley> wrote:
> This is my first venture into graphics other than nvidia since it appears
> that intel graphics has come a long way I thought I would give it a try.
>
> I started with a fresh fedora 16 build so really no xorg configuration to
> speak of and the video works and the CPU is only running between 50 and 70
> percent on opengl playback however I would really like to use the intel
> acceleration however can not really seem to figure out how to do that
> because every time I start messing with the xorg config my screen will blank
> after 10 minutes even after I disable all screen saving measures in KDE and
> start mythfrontend with xset dpms force on and xset s off.
>
> I have tried using the VAAPI Normal setting in the video set up since I read
> that is for the intel graphics however using that setting uses as much CPU
> as the High Quality video setting.

if VAAPI isn't working, it will default back to a standard profile.
Check the log for any errors and anything related to VAAPI, did you
actually install the VAAPI intel drivers?
is libva installed?

what does vainfo returns? if you see an error there, you haven't
installed the required packages for vaapi to work properly
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gnassas at mac

Jun 14, 2012, 9:36 AM

Post #3 of 19 (1591 views)
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Re: mythtv and intel on CPU graphics [In reply to]

On 2012-06-14, at 8:46 AM, John Nissley wrote:

> This is my first venture into graphics other than nvidia since it appears that intel graphics has come a long way I thought I would give it a try.

Just a curious question - what kind of intel graphics do you have? Nowadays it means on CPU graphics, before it was chipset based and even within those two categories there's lots of variation.

- George

siliconfiend at gmail

Jun 14, 2012, 10:22 AM

Post #4 of 19 (1602 views)
Permalink

Re: mythtv and intel on CPU graphics [In reply to]

On Thu, Jun 14, 2012 at 8:24 AM, Jean-Yves Avenard <jyavenard [at] gmail> wrote:
> On 14 June 2012 22:46, John Nissley <jnissley [at] nissley> wrote:
>> This is my first venture into graphics other than nvidia since it appears
>> that intel graphics has come a long way I thought I would give it a try.
>>
>> I started with a fresh fedora 16 build so really no xorg configuration to
>> speak of and the video works and the CPU is only running between 50 and 70
>> percent on opengl playback however I would really like to use the intel
>> acceleration however can not really seem to figure out how to do that
>> because every time I start messing with the xorg config my screen will blank
>> after 10 minutes even after I disable all screen saving measures in KDE and
>> start mythfrontend with xset dpms force on and xset s off.
>>
>> I have tried using the VAAPI Normal setting in the video set up since I read
>> that is for the intel graphics however using that setting uses as much CPU
>> as the High Quality video setting.
>
> if VAAPI isn't working, it will default back to a standard profile.
> Check the log for any errors and anything related to VAAPI, did you
> actually install the VAAPI intel drivers?
> is libva installed?
>
> what does vainfo returns? if you see an error there, you haven't
> installed the required packages for vaapi to work properly

You probably need mesa installed for the intel opengl drivers, and the
X11 driver xf86-video-intel. Also be sure you have OpenGL set as the
GUI renderer (or Auto should work, too, if your OpenGL is set up
correctly). I had it set to QT to try to work around a black screen on
screensaver problem, but then VAAPI failed with the unfriendly error
message "Video Buffering failed too many times" or something like
that. The log showed the real reason, though.

BTW, this is what vainfo returns on my system (Gentoo):

libva: VA-API version 0.33.0
libva: va_getDriverName() returns 0
libva: Trying to open /usr/lib64/va/drivers/i965_drv_video.so
libva: Found init function __vaDriverInit_0_33
libva: va_openDriver() returns 0
vainfo: VA-API version: 0.33 (libva 1.1.0)
vainfo: Driver version: Intel i965 driver - 1.0.18
vainfo: Supported profile and entrypoints
VAProfileMPEG2Simple : VAEntrypointVLD
VAProfileMPEG2Main : VAEntrypointVLD
VAProfileH264Baseline : VAEntrypointVLD
VAProfileH264Baseline : VAEntrypointEncSlice
VAProfileH264Main : VAEntrypointVLD
VAProfileH264Main : VAEntrypointEncSlice
VAProfileH264High : VAEntrypointVLD
VAProfileH264High : VAEntrypointEncSlice
VAProfileVC1Simple : VAEntrypointVLD
VAProfileVC1Main : VAEntrypointVLD
VAProfileVC1Advanced : VAEntrypointVLD

With 1 core enabled for decoding, VAAPI runs about 7% CPU decoding SD
NTSC MPEG2 on my Sandy Bridge Core i3-2120T.

Karl
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kenkyee at yahoo

Jun 14, 2012, 11:31 AM

Post #5 of 19 (1586 views)
Permalink

Re: mythtv and intel on CPU graphics [In reply to]

Karl Newman <siliconfiend [at] gmail> wrote:
> You probably need mesa installed for the intel opengl drivers, and the
> X11 driver xf86-video-intel. Also be sure you have OpenGL set as the
> GUI renderer (or Auto should work, too, if your OpenGL is set up

Wait a sec...you've got VAAPI working with MythTV????

I think you're the only one that has gotten it to work.� Late last year year, William and
I tried getting it to work and had the same symptoms as John is having now.
I.e., if you choose the VAAPI renderer (not default, so you had to go through extra
steps to set up a new playback profile) for playback in MythTV, the screen would
go black and MythTV would bomb out (it never did a fallback to another rendered).
I've been leaving it on the MythTV defaults and it's basically brute forcing playback
w/ my sandy bridge 2500K in software.� I blogged about it back then when I thought
I had it solved but didn't realize I had to turn on VAAPI playback in MythTV so I was
doing software playback:
� http://www.keysolutions.com/blogs/kenyee.nsf/d6plinks/KKYE-8P95MH

So to get yours to work, you had to install mesa which is basically opengl
for the sandy bridge HD3000 graphics?� Then you tell MythTV to use OpenGL
for playback instead of using MythTV's VAAPI support?� That would explain why you
got yours to work instead of seeing the black screen crashes ;-)

�ken

jyavenard at gmail

Jun 14, 2012, 11:48 AM

Post #6 of 19 (1578 views)
Permalink

Re: mythtv and intel on CPU graphics [In reply to]

On 15 June 2012 04:31, <kenkyee [at] yahoo> wrote:
> Wait a sec...you've got VAAPI working with MythTV????
>
> I think you're the only one that has gotten it to work.� Late last year
> year, William and
> I tried getting it to work and had the same symptoms as John is having now.
> I.e., if you choose the VAAPI renderer (not default, so you had to go
> through extra
> steps to set up a new playback profile) for playback in MythTV, the screen
> would

Works fine for me with an ATI 6970 video card using the VAAPI/XvBA drivers.
0.26 will include a default profile for VAAPI
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kenkyee at yahoo

Jun 14, 2012, 12:49 PM

Post #7 of 19 (1583 views)
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Re: mythtv and intel on CPU graphics [In reply to]

Jean-Yves Avenard <jyavenard [at] gmail> wrote:
> Works fine for me with an ATI 6970 video card using the VAAPI/XvBA drivers.
> 0.26 will include a default profile for VAAPI

Hmm...now I'm wondering if the VAAPI black screen crash is more an issue w/ Intel's
Sandy/Ivy Bridge graphics chips.
John, Willam, and I all were using Sandy Bridge graphics...

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siliconfiend at gmail

Jun 14, 2012, 12:52 PM

Post #8 of 19 (1575 views)
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Re: mythtv and intel on CPU graphics [In reply to]

On Thu, Jun 14, 2012 at 11:31 AM, <kenkyee [at] yahoo> wrote:
> Karl Newman <siliconfiend [at] gmail> wrote:
>> You probably need mesa installed for the intel opengl drivers, and the
>> X11 driver xf86-video-intel. Also be sure you have OpenGL set as the
>> GUI renderer (or Auto should work, too, if your OpenGL is set up
>
> Wait a sec...you've got VAAPI working with MythTV????
>
> I think you're the only one that has gotten it to work.� Late last year
> year, William and
> I tried getting it to work and had the same symptoms as John is having now.
> I.e., if you choose the VAAPI renderer (not default, so you had to go
> through extra
> steps to set up a new playback profile) for playback in MythTV, the screen
> would
> go black and MythTV would bomb out (it never did a fallback to another
> rendered).
> I've been leaving it on the MythTV defaults and it's basically brute forcing
> playback
> w/ my sandy bridge 2500K in software.� I blogged about it back then when I
> thought
> I had it solved but didn't realize I had to turn on VAAPI playback in MythTV
> so I was
> doing software playback:
> � http://www.keysolutions.com/blogs/kenyee.nsf/d6plinks/KKYE-8P95MH
>
> So to get yours to work, you had to install mesa which is basically opengl
> for the sandy bridge HD3000 graphics?� Then you tell MythTV to use OpenGL
> for playback instead of using MythTV's VAAPI support?� That would explain
> why you
> got yours to work instead of seeing the black screen crashes ;-)
>
> �ken

It didn't work right away. I messed with a bunch of stuff and
installed the newest package versions, etc. and it still wasn't
working, but once I got time to dig into it and look at the logs, I
discovered that setting the GUI theme painter (I think in
Setup->Appearance?) to Auto or OpenGL was the last trick it needed.
Somehow VAAPI is linked with OpenGL (not sure about the details). I
did set up a new playback profile with VAAPI and just used the
defaults that brought. I know it's not using software playback because
previously it was using around 35% CPU with the Slim profile. BTW, the
Sandy Bridge Core i3 has the HD2000 GPU, which I think is mainly fewer
pipelines and maybe some other differences which are insignificant for
me.

I'm using Gentoo (amd64), so mesa got pulled in by xorg-server. (mesa
version 8.0.3, xorg-server version 1.11.4-r1) I also have kernel
3.4.0-gentoo (a bunch of Sandy Bridge improvements went into that
kernel), libva-1.1.0, libva-intel-driver-1.0.18,
xf86-video-intel-2.19.0. I think those are the key packages. Other
package versions may work but I haven't tested them.

When it wasn't working it never crashed, it just went black for a few
seconds and then exited back to the recordings screen with the "Video
frame buffering failed too many times" error message.

Hope that helps.

Sincerely,

Karl
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jmorris at beau

Jun 14, 2012, 2:42 PM

Post #9 of 19 (1571 views)
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Re: mythtv and intel on CPU graphics [In reply to]

On Thu, 2012-06-14 at 07:46 -0500, John Nissley wrote:

> I started with a fresh fedora 16 build so really no xorg configuration
> to speak of and the video works and the CPU is only running between 50
> and 70 percent on opengl playback however I would really like to use the
> intel acceleration however can not really seem to figure out how to do
> that because every time I start messing with the xorg config my screen
> will blank after 10 minutes even after I disable all screen saving
> measures in KDE and start mythfrontend with xset dpms force on and xset
> s off.

Don't think that xset command is doing what you want. force causes the
specified mode to instantly take effect but doesn't lock it; it will
still blank back out after the timeout. You would use "xset dpms force
on" from a script to force the display on. To totally disable it I
think "xset dpms 0 0 0" is what you want to use.

Attachments:

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jnissley at nissley

Jun 14, 2012, 6:06 PM

Post #10 of 19 (1575 views)
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mythtv and intel on CPU graphics [In reply to]

You probably need mesa installed for the intel opengl drivers, and the
X11 driver xf86-video-intel. Also be sure you have OpenGL set as the
GUI renderer (or Auto should work, too, if your OpenGL is set up
correctly). I had it set to QT to try to work around a black screen on
screensaver problem, but then VAAPI failed with the unfriendly error
message "Video Buffering failed too many times" or something like
that. The log showed the real reason, though.

BTW, this is what vainfo returns on my system (Gentoo):

libva: VA-API version 0.33.0
libva: va_getDriverName() returns 0
libva: Trying to open /usr/lib64/va/drivers/i965_drv_video.so
libva: Found init function __vaDriverInit_0_33
libva: va_openDriver() returns 0
vainfo: VA-API version: 0.33 (libva 1.1.0)
vainfo: Driver version: Intel i965 driver - 1.0.18
vainfo: Supported profile and entrypoints
VAProfileMPEG2Simple : VAEntrypointVLD
VAProfileMPEG2Main : VAEntrypointVLD
VAProfileH264Baseline : VAEntrypointVLD
VAProfileH264Baseline : VAEntrypointEncSlice
VAProfileH264Main : VAEntrypointVLD
VAProfileH264Main : VAEntrypointEncSlice
VAProfileH264High : VAEntrypointVLD
VAProfileH264High : VAEntrypointEncSlice
VAProfileVC1Simple : VAEntrypointVLD
VAProfileVC1Main : VAEntrypointVLD
VAProfileVC1Advanced : VAEntrypointVLD

With 1 core enabled for decoding, VAAPI runs about 7% CPU decoding SD
NTSC MPEG2 on my Sandy Bridge Core i3-2120T.

------------------------------------------------------------------------------------------
I have a model name : Intel(R) Core(TM) i3-2120 CPU @ 3.30GHz cpu and am using the on chip
graphics. You guys where right and I did not have all of the drivers I needed installed
because vainfo returned an error. Once I installed libva-freeworld-1.0.14-1.fc16.x86_64
I was then able to run vainfo and received a similar output as above. I enabled VAAPI in
mythtv and now I am getting a green screen whenever I try to watch a video and it appear
to freeze X. I do not have anything special configured in xorg and am just using the
configuration that is created when Fedora is installed. Any assistance on the green screen
and freezing of X would be appreciated. Below are some of the installed packages I think
are relevant.

[root [at] mytht ~]# rpm -qa | grep mesa
mesa-dri-filesystem-7.11.2-3.fc16.x86_64
mesa-libGL-devel-7.11.2-3.fc16.x86_64
mesa-libGLU-devel-7.11.2-3.fc16.x86_64
mesa-dri-drivers-7.11.2-3.fc16.x86_64
mesa-libEGL-7.11.2-3.fc16.x86_64
mesa-libGL-7.11.2-3.fc16.x86_64
mesa-libGLU-7.11.2-3.fc16.x86_64
mesa-libGLES-7.11.2-3.fc16.x86_64

[root [at] mytht ~]# rpm -qa | grep intel
xorg-x11-drv-intel-devel-2.19.0-3.fc16.x86_64
xorg-x11-drv-intel-2.19.0-3.fc16.x86_64

[root [at] mytht ~]# rpm -qa | grep libva
libva-freeworld-1.0.14-1.fc16.x86_64
libva-1.0.15-1.fc16.x86_64
libva-devel-1.0.15-1.fc16.x86_64
libva-utils-1.0.15-1.fc16.x86_64

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jyavenard at gmail

Jun 14, 2012, 6:27 PM

Post #11 of 19 (1565 views)
Permalink

Re: mythtv and intel on CPU graphics [In reply to]

On 14 June 2012 12:52, Karl Newman <siliconfiend [at] gmail> wrote:

> previously it was using around 35% CPU with the Slim profile. BTW, the
> Sandy Bridge Core i3 has the HD2000 GPU, which I think is mainly fewer
> pipelines and maybe some other differences which are insignificant for
> me.

I don't think that matter for VAAPI, HD2000/3000 have the same
capabilities decoding-wise

>
> I'm using Gentoo (amd64), so mesa got pulled in by xorg-server. (mesa
> version 8.0.3, xorg-server version 1.11.4-r1) I also have kernel
> 3.4.0-gentoo (a bunch of Sandy Bridge improvements went into that
> kernel), libva-1.1.0, �libva-intel-driver-1.0.18,
> xf86-video-intel-2.19.0. I think those are the key packages. Other
> package versions may work but I haven't tested them.

sure.. but what does vainfo return...
VAAPI may just not have the required packages to properly work
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siliconfiend at gmail

Jun 14, 2012, 10:09 PM

Post #12 of 19 (1556 views)
Permalink

Re: mythtv and intel on CPU graphics [In reply to]

On Thu, Jun 14, 2012 at 6:27 PM, Jean-Yves Avenard <jyavenard [at] gmail> wrote:
> On 14 June 2012 12:52, Karl Newman <siliconfiend [at] gmail> wrote:
>
>> previously it was using around 35% CPU with the Slim profile. BTW, the
>> Sandy Bridge Core i3 has the HD2000 GPU, which I think is mainly fewer
>> pipelines and maybe some other differences which are insignificant for
>> me.
>
> I don't think that matter for VAAPI, HD2000/3000 have the same
> capabilities decoding-wise
>
>>
>> I'm using Gentoo (amd64), so mesa got pulled in by xorg-server. (mesa
>> version 8.0.3, xorg-server version 1.11.4-r1) I also have kernel
>> 3.4.0-gentoo (a bunch of Sandy Bridge improvements went into that
>> kernel), libva-1.1.0, �libva-intel-driver-1.0.18,
>> xf86-video-intel-2.19.0. I think those are the key packages. Other
>> package versions may work but I haven't tested them.
>
> sure.. but what does vainfo return...
> VAAPI may just not have the required packages to properly work

VAAPI is working for me on my Core i3. I was posting my working
configuration for reference (including my vainfo output). Now the OP
has the drivers installed but has a green screen problem, which I
can't help with.

Karl
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williammotten at gmail

Jun 16, 2012, 3:07 PM

Post #13 of 19 (1532 views)
Permalink

Re: mythtv and intel on CPU graphics [In reply to]

I just tried vaapi again with pretty much the same outcome. This time it
did error out back to the mythtv menu instead of staying at the please wait
screen forever.
On Jun 14, 2012 2:50 PM, <kenkyee [at] yahoo> wrote:

>
>
> Jean-Yves Avenard <jyavenard [at] gmail> wrote:
> > Works fine for me with an ATI 6970 video card using the VAAPI/XvBA
> drivers.
> > 0.26 will include a default profile for VAAPI
>
> Hmm...now I'm wondering if the VAAPI black screen crash is more an issue
> w/ Intel's
> Sandy/Ivy Bridge graphics chips.
> John, Willam, and I all were using Sandy Bridge graphics...
>
> _______________________________________________
> mythtv-users mailing list
> mythtv-users [at] mythtv
> http://www.mythtv.org/mailman/listinfo/mythtv-users
>

jyavenard at gmail

Jun 16, 2012, 8:16 PM

Post #14 of 19 (1524 views)
Permalink

Re: mythtv and intel on CPU graphics [In reply to]

On 16 June 2012 15:07, william otten <williammotten [at] gmail> wrote:
> I just tried vaapi again with pretty much the same outcome. This time it did
> error out back to the mythtv menu instead of staying at the please wait
> screen forever.

It would help if you posted the outcome of mythfrontend started with -v playback

Otherwise it's shooting in the dark
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williammotten at gmail

Jun 17, 2012, 9:17 AM

Post #15 of 19 (1502 views)
Permalink

Re: mythtv and intel on CPU graphics [In reply to]

Has development started again? Last time I participated several months
ago...development just stopped with the developer leaving. I can start
posting info and help with testing if development is starting again.
On Jun 16, 2012 10:17 PM, "Jean-Yves Avenard" <jyavenard [at] gmail> wrote:

> On 16 June 2012 15:07, william otten <williammotten [at] gmail> wrote:
> > I just tried vaapi again with pretty much the same outcome. This time it
> did
> > error out back to the mythtv menu instead of staying at the please wait
> > screen forever.
>
> It would help if you posted the outcome of mythfrontend started with -v
> playback
>
> Otherwise it's shooting in the dark
> _______________________________________________
> mythtv-users mailing list
> mythtv-users [at] mythtv
> http://www.mythtv.org/mailman/listinfo/mythtv-users
>

jyavenard at gmail

Jun 17, 2012, 3:16 PM

Post #16 of 19 (1494 views)
Permalink

Re: mythtv and intel on CPU graphics [In reply to]

On 17 June 2012 09:17, william otten <williammotten [at] gmail> wrote:
> Has development started again? Last time I participated several months
> ago...development just stopped with the developer leaving. I can start
> posting info and help with testing if development is starting again.

Please don't top-post.

What are you on about ?

When did any "development stopped" ?
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williammotten at gmail

Jun 18, 2012, 11:46 AM

Post #17 of 19 (1472 views)
Permalink

Re: mythtv and intel on CPU graphics [In reply to]

Here is the thread

http://www.gossamer-threads.com/lists/engine?do=post_view_flat;post=502047;page=1;mh=-1;list=mythtv;sb=post_latest_reply;so=ASC

There were a few of us working with Mark Kendall back in Jan and then
he left and I tried to get replies to see if others were going to step
in but I never got any reply.

Sorry for the top post.

On 6/17/12, Jean-Yves Avenard <jyavenard [at] gmail> wrote:
> On 17 June 2012 09:17, william otten <williammotten [at] gmail> wrote:
>> Has development started again? Last time I participated several months
>> ago...development just stopped with the developer leaving. I can start
>> posting info and help with testing if development is starting again.
>
> Please don't top-post.
>
> What are you on about ?
>
> When did any "development stopped" ?
> _______________________________________________
> mythtv-users mailing list
> mythtv-users [at] mythtv
> http://www.mythtv.org/mailman/listinfo/mythtv-users
>
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williammotten at gmail

Jun 24, 2012, 6:21 AM

Post #18 of 19 (1357 views)
Permalink

Re: mythtv and intel on CPU graphics [In reply to]

On Mon, Jun 18, 2012 at 1:46 PM, william otten <williammotten [at] gmail>wrote:

> Here is the thread
>
>
> http://www.gossamer-threads.com/lists/engine?do=post_view_flat;post=502047;page=1;mh=-1;list=mythtv;sb=post_latest_reply;so=ASC
>
> There were a few of us working with Mark Kendall back in Jan and then
> he left and I tried to get replies to see if others were going to step
> in but I never got any reply.
>
> Sorry for the top post.
>
> On 6/17/12, Jean-Yves Avenard <jyavenard [at] gmail> wrote:
> > On 17 June 2012 09:17, william otten <williammotten [at] gmail> wrote:
> >> Has development started again? Last time I participated several months
> >> ago...development just stopped with the developer leaving. I can start
> >> posting info and help with testing if development is starting again.
> >
> > Please don't top-post.
> >
> > What are you on about ?
> >
> > When did any "development stopped" ?
> > _______________________________________________
> > mythtv-users mailing list
> > mythtv-users [at] mythtv
> > http://www.mythtv.org/mailman/listinfo/mythtv-users
> >
>
Since there hasn't been a reply to address whether vaapi and sandy bridge
processors will work in mythtv....I think it is only fair to say that this
issue is still open.
Thanks

newmank1 at asme

Jun 24, 2012, 11:28 AM

Post #19 of 19 (1354 views)
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Re: mythtv and intel on CPU graphics [In reply to]

On Sun, Jun 24, 2012 at 6:21 AM, william otten <williammotten [at] gmail> wrote:
>
>
> On Mon, Jun 18, 2012 at 1:46 PM, william otten <williammotten [at] gmail>
> wrote:
>>
>> Here is the thread
>>
>>
>> http://www.gossamer-threads.com/lists/engine?do=post_view_flat;post=502047;page=1;mh=-1;list=mythtv;sb=post_latest_reply;so=ASC
>>
>> There were a few of us working with Mark Kendall back in Jan and then
>> he left and I tried to get replies to see if others were going to step
>> in but I never got any reply.
>>
>> Sorry for the top post.
>>
>> On 6/17/12, Jean-Yves Avenard <jyavenard [at] gmail> wrote:
>> > On 17 June 2012 09:17, william otten <williammotten [at] gmail> wrote:
>> >> Has development started again? Last time I participated several months
>> >> ago...development just stopped with the developer leaving. I can start
>> >> posting info and help with testing if development is starting again.
>> >
>> > Please don't top-post.
>> >
>> > What are you on about ?
>> >
>> > When did any "development stopped" ?
>> > _______________________________________________
>> > mythtv-users mailing list
>> > mythtv-users [at] mythtv
>> > http://www.mythtv.org/mailman/listinfo/mythtv-users
>> >
>
> Since there hasn't been a reply to address whether vaapi and sandy bridge
> processors will work in mythtv....I think it is only fair to say that this
> issue is still open.
> Thanks

I confirmed earlier in this thread that I am successfully and stably
using VAAPI with my Sandy Bridge Core i3-2120T, and I gave details
about my system configuration (library versions, etc.). One key aspect
for me was to ensure the GUI painter was using Auto or OpenGL;
otherwise it fails with a generic error message.

'top' reports CPU usage around 6-7% for NTSC MPEG2 (recordings from
Hauppauge PVR-500) or x264-encoded DVDs.

Karl
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