[mythtv-users] MythTV experience with Intel Sandy Bridge graphics

[Nick Rout]

On Tue, Jan 17, 2012 at 6:35 AM, Matt Garman <matthew.garman at gmail.com> wrote:
> On Sun, Jan 15, 2012 at 7:38 PM, Nick Rout <nick.rout at gmail.com> wrote:
>> On Mon, Jan 16, 2012 at 2:35 PM, Matt Garman <matthew.garman at gmail.com> wrote:
>>> This is why I'm really interested in getting a Sandy Bridge-based
>>> FE going.  I underclocked my memory from 1333 to 1066
>>
>> As a casual observer, this may have something to do with under performance?
>
> Are you suggesting because of my memory underclock?  Or the CPU/GPU in
> general?  As for the memory clock, there's no perceivable difference
> in playback with the memory clocked at 1333 or 1066.  I.e., tearing
> still exists with the memory at the higher speed and voltage.

I was suggesting that underclocking might have affected performance,
but if you find the same problems at the higher speed then that rules
that out :)

>
> As for the CPU/GPU performance: this hardware combination works just
> fine for all kinds of playback (including high bit rate Bluray) on
> Windows.  So I really don't think it's a hardware limitation.
>
>> Have any of you used the combination of master and vaapi?
>
> By "master" are you referring to the svn 0.25 dev branch of mythtv?
> AFAIK that's the only way to get vaapi support in myth.


Yes, now that the development is in git, i understand master is the
term for the current development version - it's not 0.25 until
released.
>
> Is it possible to run the stable 0.24 fixes on the backend and
> 0.25-svn on the frontend?  If so, I might be willing to give it a try.
>  But otherwise, I don't want to risk the stability of an otherwise
> perfectly working system (too much WAF risk :))

I don't believe it is possible, so maybe better to wait until 025 is released :)

> Anyway, I'll add: in the initial post of this thread, a
> freedesktop.org mesa patch was mentioned that fixed the crashing issue
> when using mythtv with opengl rendering.  I too have that crash (and
> can't find the patch that was mentioned).  Interestingly though, if I
> play videos using mplayer -vo gl (or gl2), the video plays fine
> (without crashing).
>
> -Matt
> _______________________________________________
> mythtv-users mailing list
> mythtv-users at mythtv.org
> http://www.mythtv.org/mailman/listinfo/mythtv-users