[mythtv-users] 0.19, VIA, XvMC, Ezra/i586 - video corrupted - SOLVED :-)
Jules Gosnell
jules at coredevelopers.net
Tue Aug 8 23:03:10 UTC 2006
So, I tried a number of things this evening.
1 of them was fiddling with my BIOS settings...
I increased a video memory setting (can't remember the name offhand)
from 32mb to 64mb - all my recordings play happily now.
It looks as if recordings with smaller dimensions were playing ok whilst
larger ones were being corrupted. I guess this was due to a failed alloc
somewhere...
So, thanks for all the help guys, and sorry to trouble you with this.
I now have to go buy a new videocard for the backend box, which gave up
the ghost just after I got the frontend working ! Always the way...
When I have got that going and have recorded another episode of 'lost',
I will finally know whether I have fixed the stuttering as well.
Jules
Jules Gosnell wrote:
> Kevin Slater wrote:
>
>>Jules,
>>
>>I need to go back and look at the configuration again. It could be that
>>I have Standard XvMC for playback on my FE only VIA EPIA M-9000. I can't
>>say for sure because I was playing with different settings for
>>interlacing and such. I'll double-check and post a response one way or
>>the other.
>
>
> cool
>
>
>>The stuttering on playback - I had that exact same issue with my .14
>>setup on this same box. (I ran it like that for years.) A good example
>>of what would trip it would be the LOST intro or any program that put
>>white letters on a black background - instant stutter in those cases.
>
>
> exactly - I have the same problem with 'lost' - drives the wife crazy :-)
>
>
>>Since using the unichrome (openchrome?) drivers from kelkoo and enabling
>>XvMC, this is no longer an issue. The fact that it happens to you when
>>you think you're using the VIA XvMC for playback, tells me that you may
>>not be using that driver afterall.
>
>
> no - you misunderstand - the fact that it happens when I am NOT using
> XvMC, amongst other things, is prompting me to try to get XvMC working....
>
> however - when I enable XvMC, I get garbled video, most of the time - see :
>
> http://www.gosnell.org.uk/tmp/00032.jpg
>
> So, it sounds like our experiences are pretty similar - I await your
> report on the settings that you are using - maybe I can copy them and it
> 'will just work' :-)
>
> Jules
>
>
>
>>...Kevin
>>
>>On 8/4/06, *Jules Gosnell* <jules at coredevelopers.net
>><mailto:jules at coredevelopers.net>> wrote:
>>
>> Kevin Slater wrote:
>> > Jules,
>> >
>> > I have an EPIA M-9000 (Ezra/i586) Mythbox running 0.19. It's a
>> frontend
>> > only, but it is using XvMC from Kelkoo as you describe above. If
>> I get
>> > another capture card it'll be a slave backend again. (Which is
>> what it
>> > was for the longest time running .14 without the libXvMC stuff.)
>> So it
>> > should be be possible for your machine to give you adequate
>> performance
>> > although when I was running without libXvMC I had to limit my
>> capture
>> > resolution to 480 x 480 otherwise playback response was pretty
>> bad. (I
>> > use PVR-250 cards.)
>> >
>> > I wonder if part of the issue is the difference in TV standards?
>>
>> OK - so you have a PVR-250 in your frontend, no backend, 'VIA XvMC',
>> enabled in setup and video plays back fine ?
>>
>> I have a pair of Nova-T's in my backend and enabling 'VIA XvMC' results
>> in the problem described.
>>
>> I don't crop the video that I am recording, but my Ezra is fast enough
>> to handle it (most of the time). Strangely, if the scene is very dark,
>> or becomes black, I get stuttering. I don't see why this should put more
>> load on the cpu - but it is annoying...
>>
>> I was hoping that getting VIA XvMC running would solve the problem - My
>> frontend is passively cooled and I would be much happier if I could get
>> cpu usage down to 10-20%.
>>
>> I wonder if I am seeing some incompatibility between the formats
>> broadcast, the format put out by my Nova-Ts (two different models) and
>> the formats understood by my CLE266 ? Could this be possible ?
>>
>> Jules
>>
>>
>> >
>> > ...Kevin
>> >
>> > On 8/3/06, *Jules Gosnell* < jules at coredevelopers.net
>> <mailto:jules at coredevelopers.net>
>> > <mailto:jules at coredevelopers.net
>> <mailto:jules at coredevelopers.net>>> wrote:
>> >
>> >
>> > Thought I would repost as I'm still seeing this sort of thing
>> on _some_
>> > recordings when XvMC is enabled:
>> >
>> > http://www.gosnell.org.uk/tmp/00032.jpg
>> >
>> > I'm living without XvMC, but it's not ideal - I have to put
>> up with
>> > stuttering now and then.
>> >
>> >
>> > I have just upgraded the box to the latest packages from
>> > washington.kelkoo.net/epia
>> <http://washington.kelkoo.net/epia> <
>> http://washington.kelkoo.net/epia> and
>> > atrpms (see below).
>> >
>> >
>> > but, still no better.
>> >
>> > Underneath this it is running a pretty much vanilla FC4 with all
>> > updates
>> > from standard repos applied.
>> >
>> > The only unusual thing about my setup is that the cpu is an
>> Ezra and
>> > therefore an i586 - this has caused problems in the past.
>> >
>> > Does anyone have an Ezra running successfully with XvMC
>> enabled ? If
>> > so,
>> > I would be very interested to compare notes.
>> >
>> >
>> > I've just done a little more testing and found that the
>> problem may be
>> > related to the channel - e.g. ITV2 and More4 (PAL, UK) seem
>> to be the
>> > only channels on which I regularly record which produce
>> recordings
>> > which
>> > do not demonstrate this problem (90% of the time). All other
>> channels
>> > that I use generate recordings that I are not watchable with
>> XvMC. Might
>> > different channels braodcast in slightly different formats,
>> some of
>> > which work better with my hard/software ? any ideas ?
>> >
>> >
>> > Thanks for your time,
>> >
>> >
>> > Jules
>> >
>> > kernel-2.6.17-1.2142_FC4
>> > libmyth-0.19-130.fc4.at <http://libmyth-0.19-130.fc4.at>
>> <http://libmyth-0.19-130.fc4.at>
>> > mythbrowser-0.19-126.fc4.at
>> <http://mythbrowser-0.19-126.fc4.at>
>> <http://mythbrowser-0.19-126.fc4.at>
>> > mythcontrols-0.19-126.fc4.at
>> <http://mythcontrols-0.19-126.fc4.at>
>> <http://mythcontrols-0.19-126.fc4.at>
>> > mythdvd-0.19-126.fc4.at <http://mythdvd-0.19-126.fc4.at> <
>> http://mythdvd-0.19-126.fc4.at>
>> > mythflix-0.19-126.fc4.at <http://mythflix-0.19-126.fc4.at>
>> <http://mythflix-0.19-126.fc4.at>
>> > mythgallery-0.19-126.fc4.at
>> <http://mythgallery-0.19-126.fc4.at>
>> <http://mythgallery-0.19-126.fc4.at>
>> > mythgame-0.19-126.fc4.at <http://mythgame-0.19-126.fc4.at> <
>> http://mythgame-0.19-126.fc4.at>
>> > mythmkmovie-1.1.4-5.fc4.at
>> <http://mythmkmovie-1.1.4-5.fc4.at> <http://mythmkmovie-1.1.4-5.fc4.at>
>> > mythmusic-0.19-126.fc4.at <http://mythmusic-0.19-126.fc4.at>
>> <http://mythmusic-0.19-126.fc4.at>
>> > mythnews-0.19-126.fc4.at <http://mythnews-0.19-126.fc4.at>
>> <http://mythnews-0.19-126.fc4.at>
>> > mythphone-0.19-126.fc4.at <http://mythphone-0.19-126.fc4.at>
>> < http://mythphone-0.19-126.fc4.at>
>> > mythplugins-0.19-126.fc4.at
>> <http://mythplugins-0.19-126.fc4.at>
>> <http://mythplugins-0.19-126.fc4.at>
>> > myththemes-0.19-106.at <http://myththemes-0.19-106.at>
>> <http://myththemes-0.19-106.at>
>> > mythtv-0.19-130.fc4.at <http://mythtv-0.19-130.fc4.at>
>> <http://mythtv-0.19-130.fc4.at>
>> > mythtv-backend-0.19-130.fc4.at
>> <http://mythtv-backend-0.19-130.fc4.at> <
>> http://mythtv-backend-0.19-130.fc4.at>
>> > mythtv-frontend-0.19-130.fc4.at
>> <http://mythtv-frontend-0.19-130.fc4.at>
>> <http://mythtv-frontend-0.19-130.fc4.at
>> <http://mythtv-frontend-0.19-130.fc4.at>>
>> > mythtv-setup-0.19-130.fc4.at
>> <http://mythtv-setup-0.19-130.fc4.at>
>> <http://mythtv-setup-0.19-130.fc4.at>
>> > mythtv-suite-0.19-59.at <http://mythtv-suite-0.19-59.at>
>> <http://mythtv-suite-0.19-59.at>
>> > mythtv-theme-abstract-0.20040910-2.at
>> <http://mythtv-theme-abstract-0.20040910-2.at>
>> > <http://mythtv-theme-abstract-0.20040910-2.at>
>> > mythtv-theme-MediaCenter-0.17-4.at
>> <http://mythtv-theme-MediaCenter-0.17-4.at>
>> > <http://mythtv-theme-MediaCenter-0.17-4.at>
>> > mythtv-theme-photo-4-6.at <http://mythtv-theme-photo-4-6.at>
>> < http://mythtv-theme-photo-4-6.at>
>> > mythtv-theme-ProjectGrayhem-1.7-1.at
>> <http://mythtv-theme-ProjectGrayhem-1.7-1.at>
>> > <http://mythtv-theme-ProjectGrayhem-1.7-1.at
>> <http://mythtv-theme-ProjectGrayhem-1.7-1.at>>
>> > mythtv-theme-purplegalaxy-0.20031214-3.at
>> <http://mythtv-theme-purplegalaxy-0.20031214-3.at>
>> > <http://mythtv-theme-purplegalaxy-0.20031214-3.at
>> <http://mythtv-theme-purplegalaxy-0.20031214-3.at>>
>> > mythtv-theme-Retro-0.20051208-1.at
>> <http://mythtv-theme-Retro-0.20051208-1.at>
>> > <http://mythtv-theme-Retro-0.20051208-1.at
>> <http://mythtv-theme-Retro-0.20051208-1.at>>
>> > mythtv-themes-0.19-130.fc4.at
>> <http://mythtv-themes-0.19-130.fc4.at>
>> <http://mythtv-themes-0.19-130.fc4.at>
>> > mythtv-theme-sleek-0.35-2.at
>> <http://mythtv-theme-sleek-0.35-2.at>
>> <http://mythtv-theme-sleek-0.35-2.at>
>> > mythtv-theme-visor-0.16.2-5.at
>> <http://mythtv-theme-visor-0.16.2-5.at>
>> <http://mythtv-theme-visor-0.16.2-5.at>
>> > mythvideo-0.19-126.fc4.at <http://mythvideo-0.19-126.fc4.at>
>> < http://mythvideo-0.19-126.fc4.at>
>> > mythweather-0.19-126.fc4.at
>> <http://mythweather-0.19-126.fc4.at>
>> <http://mythweather-0.19-126.fc4.at>
>> > mythweb-0.19-78.at <http://mythweb-0.19-78.at>
>> <http://mythweb-0.19-78.at>
>> > xine-0.99.4-0.lvn.3.4
>> > xine-lib-1.1.1-0.lvn.3.4.ucr.1
>> > xine-skins-1.8-0.lvn.1.4
>> > xorg-x11-6.9-0.FC4.ucr.12
>> > xorg-x11-deprecated-libs-6.9-0.FC4.ucr.12
>> > xorg-x11-deprecated-libs-devel-6.9-0.FC4.ucr.12
>> > xorg-x11-devel-6.9-0.FC4.ucr.12
>> > xorg-x11-doc-6.9-0.FC4.ucr.12
>> > xorg-x11-font-utils-6.9-0.FC4.ucr.12
>> > xorg-x11-libs-6.9-0.FC4.ucr.12
>> > xorg-x11-Mesa-libGL-6.9-0.FC4.ucr.12
>> > xorg-x11-Mesa-libGLU-6.9-0.FC4.ucr.12
>> > xorg-x11-sdk-6.9-0.FC4.ucr.12
>> > xorg-x11-tools-6.9-0.FC4.ucr.12
>> > xorg-x11-twm-6.9-0.FC4.ucr.12
>> > xorg-x11-xauth-6.9-0.FC4.ucr.12
>> > xorg-x11-xdm-6.9-0.FC4.ucr.12
>> > xorg-x11-xfs-6.9-0.FC4.ucr.12
>> > xorg-x11-Xnest-6.9-0.FC4.ucr.12
>> > xorg-x11-Xvfb-6.9-0.FC4.ucr.12
>> >
>> >
>> > Jules Gosnell wrote:
>> > > http://www.gosnell.org.uk/tmp/00032.jpg
>> > >
>> > > Last night I did a completely clean install of FC4 onto my VIA
>> > Ezra. I
>> > > added yum configurations for Kelkoo (Epia Unichrome
>> related RPMs), AT
>> > > (Myth RPMs), and Livna (Xine RPMs) and did a complete
>> update of the
>> > > system, including MythTV-Suite and Xine.
>> > >
>> > > The relevant pieces of my install now look like this :
>> > >
>> > > xorg-x11-6.9-0.FC4.ucr.5
>> > > mythtv-suite-0.19-57.at <http://mythtv-suite-0.19-57.at>
>> <http://mythtv-suite-0.19-57.at <http://mythtv-suite-0.19-57.at>>
>> > > mythtv-frontend-0.19-124.rhfc4.at
>> <http://mythtv-frontend-0.19-124.rhfc4.at>
>> > <http://mythtv-frontend-0.19-124.rhfc4.at
>> <http://mythtv-frontend-0.19-124.rhfc4.at>>
>> > > libmyth-0.19-124.rhfc4.at
>> <http://libmyth-0.19-124.rhfc4.at> <http://libmyth-0.19-124.rhfc4.at>
>> > > kernel-2.6.15-1.1833_FC4
>> > > xine-0.99.4-0.lvn.3.4
>> > > xine-lib-1.1.1-0.lvn.3.4.ucr.1
>> > >
>> > > I no longer seem to need an /etc/X11/XvMCConfig or package, or
>> > special
>> > > kernel module - I think all of this is now built into the new
>> > kernel and
>> > > x server releases.
>> > >
>> > > I have not rebuilt MythTV - I may try that today.
>> > >
>> > > I had 0.18/FC3/XvMC running fine - but 0.19 offered tempting
>> > > improvements in so many areas...
>> > >
>> > > After I upgrading 0.18->0.19 (still on FC3), I was seeing the
>> > same form
>> > > of corruption when running with 'VIA XvMC' decoding, plus
>> a different
>> > > sort of corruption when playing the same recording with
>> 'Standard'
>> > > decoding (Colours seemed washed out of video, then a few
>> brighter
>> > > colours like orange were striped across the video and
>> smeared upwards
>> > > and to the right slightly).
>> > >
>> > > I figured I would be in better company if I moved from
>> FC3->FC4 -
>> > now
>> > > 'Standard' decoding seems fixed - but my 1ghz cpu cannot
>> keep up.
>> > > Unfortunately, 'VIA XvMC' playback still results in
>> garbage being
>> > > displayed on large horizontal sections of the screen.
>> Pausing or
>> > > changing position in the stream tends to corrupt the whole
>> screen.
>> > >
>> > > I've noted two other things that may help:
>> > >
>> > > - some MPEG2 files (recorded on both 0.18 and 0.19) are not
>> > affected and
>> > > play perfectly - XvMC decoding is much improved over 0.18 for
>> > these :-).
>> > > Unfortunately, these recordings seem to be the exception.
>> > >
>> > > - the files that cannot be played cleanly on VIA/MythTV
>> playback
>> > fine on
>> > > the same machine using 'xine -xxmc' (load is reduced to
>> 15-20%)
>> > and on
>> > > another non XvMC capable machine - so the files themselves
>> are not
>> > > corrupted.
>> > >
>> > > many issues that I have had with this box come down to the
>> fact
>> > that it
>> > > is an i586 - an unusual arch - so that may be worth
>> bearing in mind.
>> > >
>> > > If anyone has any ideas, patches, things that they would
>> like me
>> > to try
>> > > - just shout. I've fiddled with various settings, but to no
>> > avail. I may
>> > > try completely removing my ~/.mythtv in the hope that I
>> have some
>> > > historical setting that is causing trouble.
>> > >
>> > > Thanks for MythTV !
>> > >
>> > >
>> > > Jules
>> > >
>> >
>> >
>> > --
>> > "Open Source is a self-assembling organism. You dangle a
>> piece of
>> > string into a super-saturated solution and a whole
>> operating-system
>> > crystallises out around it."
>> >
>> > /**********************************
>> > * Jules Gosnell
>> > * Partner
>> > * Core Developers Network (Europe)
>> > *
>> > * www.coredevelopers.net <http://www.coredevelopers.net>
>> <http://www.coredevelopers.net <http://www.coredevelopers.net>>
>> > *
>> > * Open Source Training & Support.
>> > **********************************/
>> > _______________________________________________
>> > mythtv-users mailing list
>> > mythtv-users at mythtv.org <mailto:mythtv-users at mythtv.org>
>> <mailto:mythtv-users at mythtv.org <mailto:mythtv-users at mythtv.org>>
>> > http://mythtv.org/cgi-bin/mailman/listinfo/mythtv-users
>> > <http://mythtv.org/cgi-bin/mailman/listinfo/mythtv-users>
>> >
>> >
>> >
>> >
>> > --
>> >
>> > -- "Science without religion is lame, religion without science is
>> blind."
>> > -- Albert Einstein (1879 - 1955)
>> >
>> >
>> >
>> ------------------------------------------------------------------------
>>
>> >
>> > _______________________________________________
>> > mythtv-users mailing list
>> > mythtv-users at mythtv.org <mailto:mythtv-users at mythtv.org>
>> > http://mythtv.org/cgi-bin/mailman/listinfo/mythtv-users
>>
>>
>> --
>> "Open Source is a self-assembling organism. You dangle a piece of
>> string into a super-saturated solution and a whole operating-system
>> crystallises out around it."
>>
>> /**********************************
>> * Jules Gosnell
>> * Partner
>> * Core Developers Network (Europe)
>> *
>> * www.coredevelopers.net <http://www.coredevelopers.net>
>> *
>> * Open Source Training & Support.
>> **********************************/
>> _______________________________________________
>> mythtv-users mailing list
>> mythtv-users at mythtv.org <mailto:mythtv-users at mythtv.org>
>> http://mythtv.org/cgi-bin/mailman/listinfo/mythtv-users
>>
>>
>>
>>
>>--
>>
>>-- "Science without religion is lame, religion without science is blind."
>>-- Albert Einstein (1879 - 1955)
>>
>>
>>------------------------------------------------------------------------
>>
>>_______________________________________________
>>mythtv-users mailing list
>>mythtv-users at mythtv.org
>>http://mythtv.org/cgi-bin/mailman/listinfo/mythtv-users
>
>
>
--
"Open Source is a self-assembling organism. You dangle a piece of
string into a super-saturated solution and a whole operating-system
crystallises out around it."
/**********************************
* Jules Gosnell
* Partner
* Core Developers Network (Europe)
*
* www.coredevelopers.net
*
* Open Source Training & Support.
**********************************/
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