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<div class="moz-cite-prefix">On 13-03-24 01:40 PM, Igor Cicimov
wrote:<br>
</div>
<blockquote
cite="mid:CAAKASGwpJ0XMPCkAzhuQySi0=+eAWAbw0Vx0yyKX3TadyfhR7g@mail.gmail.com"
type="cite">
<p dir="ltr"><br>
On 25/03/2013 7:02 AM, "Chris" <<a moz-do-not-send="true"
href="mailto:gcsa60@gmail.com">gcsa60@gmail.com</a>> wrote:<br>
><br>
> On 13-03-24 12:07 PM, HP-mini wrote:<br>
>><br>
>> On Sun, 2013-03-24 at 11:00 -0700, Chris wrote:<br>
>>><br>
>>> Hello Everyone,<br>
>>><br>
>>> I have very naive newby question.<br>
>>><br>
>>> When I setup my MythTV frontend I was having some
trouble with tearing. <br>
>>> I originally had the video playback profile set at
Normal and I read <br>
>>> somewhere that what I really wanted was VDPAU so I
started messing <br>
>>> around with the settings but couldn't get it to
work at first. (For the <br>
>>> record the GPU is GeForce 8200/integrated/SSE2 and
the CPU is AMD <br>
>>> Athlon(tm) Dual Core Processor 4850e × 2). The
MythTV Official Wiki had <br>
>>> a few suggestions one being to place the following
in my /etc/X11/xorg.conf:<br>
>>><br>
>>> Section "Extensions"<br>
>>> Option "Composite" "Disable"<br>
>>> EndSection<br>
>>><br>
>>> I think this was already in my xorg.conf because
it's there now and I <br>
>>> don't remember putting it in (but that's another
story).<br>
>>><br>
>>> The problem is, I have recently downloaded the
Netflix app onto my <br>
>>> computer and it wants compositing enabled. So I
looked for solutions <br>
>>> and I found that I have a package on my computer
called <br>
>>> plasma-widget-toggle-compositing which looks like
it might do the <br>
>>> trick. My question is:<br>
>>><br>
>>> If I enable this widget is it going to screw-up
Mythtv somehow (Synaptic <br>
>>> Package Manager suggests it is linked to file
associated with Mythtv)?<br>
>>><br>
>>> My guess is no; but, I have had so much trouble
getting this thing to <br>
>>> work and wasted so much time fixing mistakes that I
really want to avoid <br>
>>> them.<br>
>>><br>
>>> Other possibly relevant information is that I'm
using Mythtv 0.26 run on <br>
>>> Ubuntu 12.04.<br>
>>><br>
>>> Thank you once again for your help and guidance.<br>
>>> Chris<br>
>>><br>
>> Lots of people have problems with tearing so I don't
think the solutions<br>
>> are so obvious..<br>
>> I assume you are using unity desktop (compiz plugin).<br>
>> I have never had to disable composite (disables effects
managers) on old<br>
>> lucid gnome 2 or 12.04 with
unity/fallback/consort/kde/etc..<br>
>><br>
>> To get the best performance (mythtv & vdpau) you
need vdapau to use<br>
>> video overlay (guarantees no tearing) & that
requires<br>
>> composite/re-direction to be blocked.<br>
>> You can use "ccsm" to tweak a couple of compiz/unity
settings:<br>
>> - enable un-redirect full screen<br>
>> - enable legacy full screen support<br>
>> Be very cautious with this tweak tool, unity seems not
completely<br>
>> compatible with compiz setting tool.<br>
>> Of course this only works with mythtv in full screen
mode.<br>
>><br>
>> Another possible problem is the incorrect refresh rate
reported by<br>
>> nVidia driver (when using twinview metamodes).<br>
>> If using twinview you may need to manually set the
composite refresh<br>
>> rate (no auto detect).<br>
>> AFAIK Later nVidia drivers have solved the incorrect
refresh reporting.<br>
>><br>
>> I don't know about the plasma-widget-toggle...<br>
>><br>
>> Brett<br>
>><br>
>> _______________________________________________<br>
>> mythtv-users mailing list<br>
>> <a moz-do-not-send="true"
href="mailto:mythtv-users@mythtv.org">mythtv-users@mythtv.org</a><br>
>> <a moz-do-not-send="true"
href="http://www.mythtv.org/mailman/listinfo/mythtv-users">http://www.mythtv.org/mailman/listinfo/mythtv-users</a><br>
><br>
> Thanks Brett,<br>
><br>
> When I first read your e-mail I thought you had
misunderstood the issue but on reading it again I get the
impression that your telling me that I can take take the
"Option "Composite" "Disable"" command out of my
/etc/x11/Xorg.conf. Is that correct?<br>
><br>
> If you are suggesting I take it out, do I just change it to
the below or just delete all three lines from the file?<br>
><br>
> Section "Extensions"<br>
> Option "Composite" "Enable"<br>
> EndSection<br>
><br>
> Currently I have Mythtv running under VDPAU slim (still
stutters horribly under VDPAU normal or high quality) and I am
very happy with the picture quality . I was trying everything
under the Myth Official Wiki but the last thing I did was add
the line below to my /etc/X11/Xorg.conf and it seemed to do the
trick.<br>
><br>
> Option "TripleBuffer" "True"<br>
><br>
> I actually considered taking the Composite Disable command
out of my Xorg.conf file but because I didn't remember adding it
in the first place (and I might have because I have been
tweaking like a madman since boxing day (the day I entered the
world of linux and mythtv)), I was worried that it was necessary
for the operating system (of course I don't really understand
what compositing is).<br>
><br>
> Thanks again<br>
> Chris<br>
><br>
There is a setting, tick box, somewhere in the frontend to
separate mythtv screen from the desktop. Do you have it ticked?</p>
<br>
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</blockquote>
Do you mean under Setup>Appearance>Video Mode Settings>
Separate Video Modes for GUI and TV Playback? <br>
<br>
If so the answer is I don't have that checked because it creates
terrible overscan or underscan which persists even when I shutdown
Mythtv Frontend. I have to reboot to make it right again.<br>
<br>
Two observations of probable significance.<br>
1) I removed the composite disable line from my Xorg.conf, rebooted
and now VDPAU Slim does not work (stutters).<br>
2) I checked the Separate Video Modes for GUI and TV Playback box
(still compositing enabled) and VDPAU Slim still doesn't work. Have
to reboot now because of overscan.<br>
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