Ubuntu
xserver-xorg-video-openchrome package

[PM800] Mythtv/XvMC playback problems on Via CN400

Bug #571002 reported by Mark Hurenkamp
8
This bug affects 1 person
Affects Status Importance Assigned to Milestone
openchrome
Fix Released
Unknown
xserver-xorg-video-openchrome (Ubuntu)
Invalid
Undecided
Unassigned

Bug Description

I can't seem to get decent playback output using the openchrome xorg driver in combination with XvMC on my Via Epia SP8000 board (CN400).
Mythtv/XvMC Playback worked fine with Karmic. (and also on an earlier version, not sure if it was gutsy or jaunty)

The symptoms i see:
- Jerky video playback
- Deinterlace problems (one field shown in top half of the screen, and 2nd field in the bottom half).
  (this seems to be intermittent, thus causing the screen to jump around a lot).

In general, lucid seems to have problems with this graphics hardware, the boot splash image is also distorted, and when i remove the 'splash' and 'quiet' flags from the boot options, it will start booting ok, but halfway through the process it will jump into a strange mode, much asif the top 2/3 of the screen shows one deinterlace field, and the bottom 2/3 the other.
(note that this system is connected to a CRT based TV via the composite output)

Initial Xorg would not display properly either, i had to create a Xorg.conf file.

mythtv-frontend:
  Installed: 0.23.0+fixes24158-0ubuntu2
  Candidate: 0.23.0+fixes24158-0ubuntu2
  Version table:
 *** 0.23.0+fixes24158-0ubuntu2 0
        500 http://archive.ubuntu.com/ubuntu/ lucid/multiverse Packages
        100 /var/lib/dpkg/status

xserver-xorg-video-openchrome:
  Installed: 1:0.2.904+svn827-1
  Candidate: 1:0.2.904+svn827-1
  Version table:
 *** 1:0.2.904+svn827-1 0
        500 http://archive.ubuntu.com/ubuntu/ lucid/main Packages
        100 /var/lib/dpkg/status

libxvmc1:
  Installed: 2:1.0.5-1ubuntu1
  Candidate: 2:1.0.5-1ubuntu1
  Version table:
 *** 2:1.0.5-1ubuntu1 0
        500 http://archive.ubuntu.com/ubuntu/ lucid/main Packages
        100 /var/lib/dpkg/status
---
Architecture: i386
DistroRelease: Ubuntu 10.04
DkmsStatus: Error: [Errno 2] No such file or directory
Package: xserver-xorg-video-openchrome 1:0.2.904+svn827-1
PackageArchitecture: i386
ProcCmdLine: ro initrd=initrd.img quiet splash nbdport=2002 BOOT_IMAGE=vmlinuz
ProcEnviron:
 LANG=en_US.UTF-8
 SHELL=/bin/bash
ProcVersionSignature: Ubuntu 2.6.31-16.53-generic
Tags: lucid lucid
Uname: Linux 2.6.31-16-generic i686
UserGroups:

system:
 distro: Ubuntu
 codename: lucid
 architecture: i686
 kernel: 2.6.31-16-generic

See original description
Revision history for this message
Rickard Närström (riccetn) wrote :

hank you for taking the time to report this bug and helping to make Ubuntu better. Please run the command 'apport-collect 571002' which will attach necessary information for debugging this as an Xorg problem. Thanks in advance.

affects: ubuntu → xserver-xorg-video-openchrome (Ubuntu)
Changed in xserver-xorg-video-openchrome (Ubuntu):
status: New → Incomplete
Bug Watch Updater (bug-watch-updater)
Changed in openchrome:
status: Unknown → New
Revision history for this message
Mark Hurenkamp (mark-hurenkamp) wrote :

After an evening puzzling with this i found the following:
- The startup problems (distorted console) are solved when i use the karmic 2.6.31 based kernel
- The XvMC problems seem to be due to a wrong setting of the playback engine in mythtv (Standard XvMC i.s.o. Via XvMC). How this setting got changed is beyond me, perhaps it happened in the database upgrade.

Which means that my main problem, the distorted video, is now solved.
The distorted console with the 2.6.32 based kernel remains.

tags: added: apport-collected
description: updated
Revision history for this message
Mark Hurenkamp (mark-hurenkamp) wrote : BootDmesg.txt

apport information

Revision history for this message
Mark Hurenkamp (mark-hurenkamp) wrote : CurrentDmesg.txt

apport information

Revision history for this message
Mark Hurenkamp (mark-hurenkamp) wrote : Dependencies.txt

apport information

Revision history for this message
Mark Hurenkamp (mark-hurenkamp) wrote : GdmLog.txt

apport information

Revision history for this message
Mark Hurenkamp (mark-hurenkamp) wrote : GdmLog1.txt

apport information

Revision history for this message
Mark Hurenkamp (mark-hurenkamp) wrote : GdmLog2.txt

apport information

Revision history for this message
Mark Hurenkamp (mark-hurenkamp) wrote : Lspci.txt

apport information

Revision history for this message
Mark Hurenkamp (mark-hurenkamp) wrote : Lsusb.txt

apport information

Revision history for this message
Mark Hurenkamp (mark-hurenkamp) wrote : PciDisplay.txt

apport information

Revision history for this message
Mark Hurenkamp (mark-hurenkamp) wrote : ProcCpuinfo.txt

apport information

Revision history for this message
Mark Hurenkamp (mark-hurenkamp) wrote : ProcInterrupts.txt

apport information

Revision history for this message
Mark Hurenkamp (mark-hurenkamp) wrote : ProcModules.txt

apport information

Revision history for this message
Mark Hurenkamp (mark-hurenkamp) wrote : RelatedPackageVersions.txt

apport information

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Mark Hurenkamp (mark-hurenkamp) wrote : UdevDb.txt

apport information

Revision history for this message
Mark Hurenkamp (mark-hurenkamp) wrote : UdevLog.txt

apport information

Revision history for this message
Mark Hurenkamp (mark-hurenkamp) wrote : XorgConf.txt

apport information

Revision history for this message
Mark Hurenkamp (mark-hurenkamp) wrote : XorgLog.txt

apport information

Revision history for this message
Mark Hurenkamp (mark-hurenkamp) wrote : XorgLogOld.txt

apport information

Bartosz Kosiorek (gang65)
summary: - Mythtv/XvMC playback problems on Via CN400
+ [PM800] Mythtv/XvMC playback problems on Via CN400
Revision history for this message
Bartosz Kosiorek (gang65) wrote :

Do you have still problems with Mythtv/XvMC playback?

Changed in xserver-xorg-video-openchrome (Ubuntu):
status: Incomplete → Confirmed
Revision history for this message
Mark Hurenkamp (mark-hurenkamp) wrote : Re: [Bug 571002] Re: [PM800] Mythtv/XvMC playback problems on Via CN400

Hi,

First, my appologies for the late response.

After changing to the correct XvMC engine, Mythtv seems
to playback correctly.
Skipping forward also works properly however, skipping
backward results in a blank screen (while audio is still ok)
This is anoying, but when i quit playback, and restart, it is ok.
I'm not sure if this is due to a problem in myth, or in xvmc.

My plan is to do a fresh install using the released mythbuntu,
(now it is running an updated prerelease), and see how it
behaves then.

Regards,
Mark.

On 05/07/2010 10:22 AM, Bartosz wrote:
> Do you have still problems with Mythtv/XvMC playback?
>
> ** Changed in: xserver-xorg-video-openchrome (Ubuntu)
> Status: Incomplete => Confirmed
>
>

Revision history for this message
Mark Hurenkamp (mark-hurenkamp) wrote :

Hi,

I did a reinstall of the released ubuntu lucid, and updated
it to current state (dd may 13th), and status is the same as
mentioned earlier.
Btw, installing ubuntu lucid on this system using the default
cd is horrible, it just would not show properly on my flatpanel
(1920x1080) or on my PAL TV. I had to switch to the alternate
installer, to do a textbased install using my flatpanel.

To summarize the xvmc issue, playback using mythtv/via-xvmc
is fine, skip forward is also fine, but skip backward turns the
screen blue/grey (audio is still playing, osd shows up fine),
and it remains that way until playback is stopped and restarted
again from the menu.

Regards,
Mark.

On May 12, 2010, at 1:36 AM, Mark Hurenkamp wrote:

> Hi,
>
> First, my appologies for the late response.
>
> After changing to the correct XvMC engine, Mythtv seems
> to playback correctly.
> Skipping forward also works properly however, skipping
> backward results in a blank screen (while audio is still ok)
> This is anoying, but when i quit playback, and restart, it is ok.
> I'm not sure if this is due to a problem in myth, or in xvmc.
>
> My plan is to do a fresh install using the released mythbuntu,
> (now it is running an updated prerelease), and see how it
> behaves then.
>
> Regards,
> Mark.
>
> On 05/07/2010 10:22 AM, Bartosz wrote:
>> Do you have still problems with Mythtv/XvMC playback?
>>
>> ** Changed in: xserver-xorg-video-openchrome (Ubuntu)
>> Status: Incomplete => Confirmed
>>
>>
>
> --
> [PM800] Mythtv/XvMC playback problems on Via CN400
> https://bugs.launchpad.net/bugs/571002
> You received this bug notification because you are a direct subscriber
> of the bug.
>

Revision history for this message
Bartosz Kosiorek (gang65) wrote :

Do you have problem with some garbage on PAL TV?

Please build/install the latest openchrome driver and enable debug mode.
The detail build instruction for Ubuntu/Debian is available at:
https://help.ubuntu.com/community/OpenChrome

Attach your /var/log/Xorg.0.log file.

Try also enable EXA in xorg.conf file, by adding following line:
Option "AccelMethod" "exa"

Bryce Harrington (bryce)
tags: added: karmic
Revision history for this message
Mark Hurenkamp (mark-hurenkamp) wrote :

My system has died last month. I've replaced it with a Zotac ION board, and am therefore not using openchrome anymore. Thus i am unable to give any more feedback on this issue.

Revision history for this message
Bartosz Kosiorek (gang65) wrote :

Thanks for your help

Changed in xserver-xorg-video-openchrome (Ubuntu):
status: Confirmed → Invalid
Bug Watch Updater (bug-watch-updater)
Changed in openchrome:
status: New → Fix Released
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