[mythtv-users] what is this video artifact?

[James Miller]

On Tue, 14 Jul 2015, Erik Hovland wrote:

> On Tue, May 12, 2015 at 6:56 PM, James Miller <gajs-f0el at dea.spamcon.org> wrote:
>>
>> I've been going on the assumption that, as Jim had suggested, the video
>> artifact I was seeing is tearing. Today, while perusing a Gentoo forum
>> thread dedicated to hardware very similar to mine and that I've reviewed
>> many times already, I noted something about tearing that, for whatever
>> reason, had previously not registered. The suggestion was to enable the
>> '"TearFree" graphics driver option.' I researched that further and found
>> some helpful instructions on the Arch wiki for enabling that (it involves
>> introducing a stanza in the file /etc/X11/xorg.conf.d/20-intel.conf). Once
>> I'd done that, adding to it another slight modification I'd found on a
>> different Gentoo forums thread dedicated to this issue, I killed and
>> restarted X. Lo and behold, that seems to have resolved the slight bit of
>> tearing I was seeing intermittently when I would watch HD recordings on this
>> machine. So the artifact turns out, apparently, not to have been related to
>> vaapi after all.
>
> Would it be possible to share some of the links you talk about above?
> I have Liva X running mythbuntu and I have noticed some tearing along
> the upper quarter part of the TV while displaying HD content. Changing
> between vaapi and regular ffmpeg playback seems to have little if any
> affect.

I think you'll find all information relevant to my own resolution of this 
issue at https://forums.gentoo.org/viewtopic-t-1006786-start-25.html