<p dir="ltr"><br>
On 25/03/2013 8:19 AM, "Chris" <<a href="mailto:gcsa60@gmail.com">gcsa60@gmail.com</a>> wrote:<br>
><br>
> On 13-03-24 01:40 PM, Igor Cicimov wrote:<br>
>><br>
>><br>
>> On 25/03/2013 7:02 AM, "Chris" <<a 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 href="mailto:mythtv-users@mythtv.org">mythtv-users@mythtv.org</a><br>
>> >> <a 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?<br>
>><br>
>><br>
>><br>
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>> <a href="mailto:mythtv-users@mythtv.org">mythtv-users@mythtv.org</a><br>
>> <a href="http://www.mythtv.org/mailman/listinfo/mythtv-users">http://www.mythtv.org/mailman/listinfo/mythtv-users</a><br>
><br>
> 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>
><br>
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> <a href="mailto:mythtv-users@mythtv.org">mythtv-users@mythtv.org</a><br>
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><br>
You need to fix the overscan inside nvidia control panel.</p>