Mailing List Archive: MythTV: Users

VDPAU bug reports against 0.21-fixes (JYA pkgs)

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list-mythtv at bluecamel

Nov 3, 2009, 12:58 PM

Post #1 of 7 (444 views)
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VDPAU bug reports against 0.21-fixes (JYA pkgs)

I installed a fresh Ubuntu 9.04 system and added JYAs repos for
Jaunty. The system is a front end only running on a ASRock 330 ION.
Nvida 190.42 with VDPAU from the JYA repo. I'm seeing fairly regular
mythtv seg faults that I don't get on my combo BE/FE without VDPAU. Of
course, it could be host of other things too.

Are bug reports against VDPAU and 0.21 still welcome and being
actively researched or is all the work on VDPAU and 0.22?

For the curious, when it doesn't crash I do get smooth 1080i/720p
playback of recorded content on the ASRock 330 ION with CPU always
below 30%.

--
Scott <catfather [at] donpoo>
AIM: BlueCame1

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nick.rout at gmail

Nov 3, 2009, 2:37 PM

Post #2 of 7 (431 views)
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Re: VDPAU bug reports against 0.21-fixes (JYA pkgs) [In reply to]

On Wed, Nov 4, 2009 at 9:58 AM, Scott <list-mythtv [at] bluecamel> wrote:
> I installed a fresh Ubuntu 9.04 system and added JYAs repos for Jaunty. The
> system is a front end only running on a ASRock 330 ION. Nvida 190.42 with
> VDPAU from the JYA repo. 狢'm seeing fairly regular mythtv seg faults that I
> don't get on my combo BE/FE without VDPAU. Of course, it could be host of
> other things too.
>
> Are bug reports against VDPAU and 0.21 still welcome and being actively
> researched or is all the work on VDPAU and 0.22?

Bug reports on 0.21-fixes with vdpau have never really been welcomed
by the devs, as it was an unofficial backport and the devs were not
wanting to be distracted from 0.22.

Nevertheless JYA and others did unofficially support vdpau in
0.21-fixes both here, in ubuntu forums and possibly elsewhere.

However I now know that JYA has moved on to 0.22, and he is also now a
dev. Thats not to say you might not get some help with 0.21-fixes with
vdpau, but I equally suspect thet such help will consist of "upgrade
to 0.22 and see if the improved code there works for you"
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jyavenard at gmail

Nov 3, 2009, 4:07 PM

Post #3 of 7 (430 views)
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Re: VDPAU bug reports against 0.21-fixes (JYA pkgs) [In reply to]

2009/11/4 Scott <list-mythtv [at] bluecamel>:
> I installed a fresh Ubuntu 9.04 system and added JYAs repos for Jaunty. The
> system is a front end only running on a ASRock 330 ION. Nvida 190.42 with
> VDPAU from the JYA repo. 狢'm seeing fairly regular mythtv seg faults that I
> don't get on my combo BE/FE without VDPAU. Of course, it could be host of
> other things too.

I'm yet to see a single report of a crash due to the VDPAU backport on
0.21-fixes...

The most common crashes I've seen are related to OpenGL and the nvidia
GL libraries crashing ; well outside mythtv responsibilities.

run it in gdb, and see in what libraries it crashed ; even if not
compiled with debugging option on, it will tell you which library
cause the crash...

That you don't see it on your other machine without the VDPAU backport
is pretty much irrelevant, because as you say, it's not the same
machine

>
> Are bug reports against VDPAU and 0.21 still welcome and being actively
> researched or is all the work on VDPAU and 0.22?

Why would anyone want to provide support on a version that is now 2
years old and 0.22 is actively maintained ?

time to move on
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list-mythtv at bluecamel

Nov 3, 2009, 4:31 PM

Post #4 of 7 (426 views)
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Re: VDPAU bug reports against 0.21-fixes (JYA pkgs) [In reply to]

On Nov 3, 2009, at 7:07 PM, Jean-Yves Avenard wrote:

> 2009/11/4 Scott <list-mythtv [at] bluecamel>:
>> I installed a fresh Ubuntu 9.04 system and added JYAs repos for
>> Jaunty. The
>> system is a front end only running on a ASRock 330 ION. Nvida
>> 190.42 with
>> VDPAU from the JYA repo. I'm seeing fairly regular mythtv seg
>> faults that I
>> don't get on my combo BE/FE without VDPAU. Of course, it could be
>> host of
>> other things too.
>
> I'm yet to see a single report of a crash due to the VDPAU backport on
> 0.21-fixes...
>
> The most common crashes I've seen are related to OpenGL and the nvidia
> GL libraries crashing ; well outside mythtv responsibilities.

Hmm, I did install nvidia-glx and other things... It's possible I did
not do right during the config.

> run it in gdb, and see in what libraries it crashed ; even if not
> compiled with debugging option on, it will tell you which library
> cause the crash...
>
> That you don't see it on your other machine without the VDPAU backport
> is pretty much irrelevant, because as you say, it's not the same
> machine
>

Exactly what I need to do next. But not having done a code dive I
wasn't sure what I would be getting into. The other thing I'm seeing
is corrupted areas of video specifically when EIA-608 closed captions
are enabled (not subtitles). I don't have a 0.22 backend so I'm not
sure if the problem is there as well.

>>
>> Are bug reports against VDPAU and 0.21 still welcome and being
>> actively
>> researched or is all the work on VDPAU and 0.22?
>
> Why would anyone want to provide support on a version that is now 2
> years old and 0.22 is actively maintained ?
>
> time to move on

Again, my thoughts as well. This is a new build out on the ASRock 330
ION platform. Unfortunately, my "in production" backend is still 0.21-
fixes. However, the only way the ASRock will be useful is as a 0.22 +
VDPAU frontend. :) You could say that I'm dedicated to 0.22 by the
fact I went out and purchased hardware to specifically take advantage
of it before it has even hit GA status.

--
Scott <catfather [at] donpoo>
AIM: BlueCame1

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jyavenard at gmail

Nov 3, 2009, 5:10 PM

Post #5 of 7 (421 views)
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Re: VDPAU bug reports against 0.21-fixes (JYA pkgs) [In reply to]

hi

2009/11/4 Scott <list-mythtv [at] bluecamel>:
> Hmm, I did install nvidia-glx and other things... It's possible I did not do
> right during the config.

I don't think there's anything to configure,

really run mythfrontend.real in gdb and wait for it to crash and see
where this occurs.

until then, nothing can be done or looked at
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tortise at paradise

Nov 3, 2009, 8:55 PM

Post #6 of 7 (411 views)
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Re: VDPAU bug reports against 0.21-fixes (JYA pkgs) [In reply to]

----- Original Message -----
From: "Jean-Yves Avenard" <jyavenard [at] gmail>
To: "Discussion about mythtv" <mythtv-users [at] mythtv>
Sent: Wednesday, November 04, 2009 2:10 PM
Subject: Re: [mythtv-users] VDPAU bug reports against 0.21-fixes (JYA pkgs)

> really run mythfrontend.real in gdb and wait for it to crash and see where this occurs.

> until then, nothing can be done or looked at
_______________________________________________

I'm getting mixed messages here - is it time to move on - or is there still interest and merit in tracking down bugs in 0.21?
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list-mythtv at bluecamel

Nov 3, 2009, 9:30 PM

Post #7 of 7 (411 views)
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Re: VDPAU bug reports against 0.21-fixes (JYA pkgs) [In reply to]

On Nov 3, 2009, at 11:55 PM, Tortise wrote:

> ----- Original Message ----- From: "Jean-Yves Avenard" <jyavenard [at] gmail
> >
> To: "Discussion about mythtv" <mythtv-users [at] mythtv>
> Sent: Wednesday, November 04, 2009 2:10 PM
> Subject: Re: [mythtv-users] VDPAU bug reports against 0.21-fixes
> (JYA pkgs)
>
>
>
>> really run mythfrontend.real in gdb and wait for it to crash and
>> see where this occurs.
>
>> until then, nothing can be done or looked at
> _______________________________________________
>
> I'm getting mixed messages here - is it time to move on - or is
> there still interest and merit in tracking down bugs in 0.21?

I think the message is "I wonder what the problem is; doesn't mean
it's worth fixing". I'm good with that. :)

So, a couple of things:

1) I didn't have my config setup proper for VDPAU at first. I was
missing the correct profile settings. Now that it's setup correctly
I'm playing back 1080i video with less than 5% cpu (no deinterlacer
set) and 720P video with Advanced HW x2 with also less than 5% cpu.
Very smooth and very nice.

2) It appears that the crashing I'm seeing relates to bringing up the
OSD menu (m key) but not other OSDs like the INFO key. The bt looks
like this:

Program received signal SIGSEGV, Segmentation fault.
[Switching to Thread 0xac510b90 (LWP 24639)]
---Type <return> to continue, or q <return> to quit---
0xb79ce99f in TV::BuildOSDTreeMenu () from /usr/lib/libmythtv-0.21.so.0
(gdb) bt
#0 0xb79ce99f in TV::BuildOSDTreeMenu () from /usr/lib/
libmythtv-0.21.so.0
#1 0xb79d152a in TV::ShowOSDTreeMenu () from /usr/lib/
libmythtv-0.21.so.0
#2 0xb79d6e39 in TV::ProcessKeypress () from /usr/lib/
libmythtv-0.21.so.0
#3 0xb79d8594 in TV::RunTV () from /usr/lib/libmythtv-0.21.so.0
#4 0xb79d9ebb in TV::EventThread () from /usr/lib/libmythtv-0.21.so.0
#5 0xb5ca64ff in start_thread () from /lib/tls/i686/cmov/
libpthread.so.0
#6 0xb5afc49e in clone () from /lib/tls/i686/cmov/libc.so.6

3) I was able to get HDMI audio out working fine on this system but
for live tv viewing I had to enable the option Settings -> TV Settings
-> Playback -> General Playback -> Extra audio buffering. The rest of
my audio options in Settings -> General -> Audio look like:

Audio output device: ALSA:default
Passthrough output device: Default
Max Audio Channels: Stereo
Upmix: Passive
AC3 audio upmixer - unchecked
Enable AC3 to SPDIF passthrough - unchecked
Enable DTS to SPDIF passthrough - unchecked
Agressive Sound card Buffering - unchecked
Use internal volume controls - unchecked

So, aside from the OSDTreeMenu segfaults it's a happy little box right
now. No, these don't look like they have anything to do with VDPAU.

--
Scott <catfather [at] donpoo>
AIM: BlueCame1

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