[elrepo] Intel video on CentOS 6.4

[Andrey Zhunev]

Thursday, October 3, 2013, 12:52:20 AM, you wrote:

> On Wed, Oct 2, 2013 at 12:11 PM, Andrey Zhunev <a-j at a-j.ru> wrote:
>> How do I know that the correct video driver is loaded?
>>
>> The reason for my question is the following lines in mythfrontend log:
>>
>> CoreContext mythrender_opengl.cpp:66 (Create) - OpenGL: Could not determine whether Sync to VBlank is enabled.
>> CoreContext mythrender_opengl.cpp:142 (IsRecommendedRenderer) - OpenGL: OpenGL is using software rendering.
>>
>> And VAAPI or OpenGL-based video playback ends up with a black screen.
>> Not sure if it's a mythtv misconfiguration, or something is wrong with
>> the video driver... I suspect the latter, but I'm out of ideas how I
>> could dig this further.
>>
>>
>> Xorg.0.log: http://pastebin.com/raw.php?i=EeYGyWuh

> Your X log file indicates that the intel driver is in use. Does lsmod
> show the i915 module?

> I cannot help with vaapi because I'm not familiar with it.

Yes:

# lsmod |grep i915
i915                  537570  2
drm_kms_helper         40087  1 i915
drm                   265638  3 i915,drm_kms_helper
i2c_algo_bit            5935  2 saa716x_tbs_dvb,i915
i2c_core               31084  20 i2c_i801,tbs6985fe,saa716x_tbs_dvb,tbs6991se,tbs6928fe,tbs6922fe,saa716x_core,tbs6618fe,tbs6991fe,tbs6982se,tbs6928se,tbs6985se,tbs6923fe,stv090x,tbs6680fe,tbs6982fe,i915,drm_kms_helper,drm,i2c_algo_bit
video                  20674  1 i915


I guess it's working then...
Is there a way to forcibly set 'Sync to VBlank' to ON ?

I don't know why Myth could not determine its state, but I guess
that's the reason why it does not display video when configured to use
VAAPI or OpenGL.


-- 
Best regards,
 Andrey