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<div class="moz-cite-prefix">On 13-03-24 12:07 PM, HP-mini wrote:<br>
</div>
<blockquote cite="mid:1364152061.2337.16.camel@hp-mini-laptop"
type="cite">
<pre wrap="">On Sun, 2013-03-24 at 11:00 -0700, Chris wrote:
</pre>
<blockquote type="cite">
<pre wrap="">Hello Everyone,
I have very naive newby question.
When I setup my MythTV frontend I was having some trouble with tearing.
I originally had the video playback profile set at Normal and I read
somewhere that what I really wanted was VDPAU so I started messing
around with the settings but couldn't get it to work at first. (For the
record the GPU is GeForce 8200/integrated/SSE2 and the CPU is AMD
Athlon(tm) Dual Core Processor 4850e × 2). The MythTV Official Wiki had
a few suggestions one being to place the following in my /etc/X11/xorg.conf:
Section "Extensions"
Option "Composite" "Disable"
EndSection
I think this was already in my xorg.conf because it's there now and I
don't remember putting it in (but that's another story).
The problem is, I have recently downloaded the Netflix app onto my
computer and it wants compositing enabled. So I looked for solutions
and I found that I have a package on my computer called
plasma-widget-toggle-compositing which looks like it might do the
trick. My question is:
If I enable this widget is it going to screw-up Mythtv somehow (Synaptic
Package Manager suggests it is linked to file associated with Mythtv)?
My guess is no; but, I have had so much trouble getting this thing to
work and wasted so much time fixing mistakes that I really want to avoid
them.
Other possibly relevant information is that I'm using Mythtv 0.26 run on
Ubuntu 12.04.
Thank you once again for your help and guidance.
Chris
</pre>
</blockquote>
<pre wrap="">Lots of people have problems with tearing so I don't think the solutions
are so obvious..
I assume you are using unity desktop (compiz plugin).
I have never had to disable composite (disables effects managers) on old
lucid gnome 2 or 12.04 with unity/fallback/consort/kde/etc..
To get the best performance (mythtv & vdpau) you need vdapau to use
video overlay (guarantees no tearing) & that requires
composite/re-direction to be blocked.
You can use "ccsm" to tweak a couple of compiz/unity settings:
- enable un-redirect full screen
- enable legacy full screen support
Be very cautious with this tweak tool, unity seems not completely
compatible with compiz setting tool.
Of course this only works with mythtv in full screen mode.
Another possible problem is the incorrect refresh rate reported by
nVidia driver (when using twinview metamodes).
If using twinview you may need to manually set the composite refresh
rate (no auto detect).
AFAIK Later nVidia drivers have solved the incorrect refresh reporting.
I don't know about the plasma-widget-toggle...
Brett
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</pre>
</blockquote>
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>
<pre wrap=""> Section "Extensions"
Option "Composite" "<font color="#ff0000">Enable</font>"
EndSection
</pre>
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>
<pre> Option "TripleBuffer" "True"</pre>
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>
<br>
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