[mythtvnz] Channel change stability issues with MythTV andVDPAU in NZ

[Ross and Jemima Knudsen]

Hi Aaron,

Did you ever get this sorted?  I am having the same issues.

System breakdown:

Ubuntu 9.04 AMD-64
JYA's Jaunty release repository only (no testing or bleeding)
nvidia-glx-185 - version 185.18.14-0ubuntu3
nvidia-185-libvdpau - version 185.18.14-0ubuntu3
Hauppauge Nova-T 500 hardware

If I click mark all upgrades in synaptic I get the following:
http://my.jetscreenshot.com/412/20090612-vef7-41kb

Update Manager keeps offering upgrades but says it can only perform a 
partial upgrade:
http://my.jetscreenshot.com/412/20090612-yvoh-97kb

So it looks like synaptic is wanting to update everything including what 
update manager isn't willing to (libmyth and mplayer) but its trying to 
revert the vdpau and nvidia driver to version 180!  Looking in Synaptic 
it wants to convert from version 
1:0.21.0+fixes-20674-openglvdpau-0ubuntu0 to 
1:0.21.0+fixes-20674-openglvdpau-0ubuntu3 for each of the changes. 

Here is the list of changes (note click the zoom link on the page to 
make it legible):
http://my.jetscreenshot.com/412/20090612-ls1f-168kb

I'd like to stay using v185 of the nvidia driver but if the version of 
myth in JYAs release repository is not compatible with this driver 
should I switch to using the testing repository?


Ross
PS hope the links to images work, a picture is worth a thousand words


Aaron Drysdale wrote:
> This problem started for me about a week ago, and it is so bad that I
> have stopped using my dvb-t card for watching live tv and only use
> dvb-s. However, I still use the Nova-T 500 for recording shows. Prior to
> this, I had almost never seen this error.
>
> Early last week I upgraded my box to use JYA's latest version from his
> release repository. A few days before that, I had installed 185.18.14
> nvidia driver as well.
>
> I did have some problems with the install of myth. I had recently
> installed monit to monitor my myth backend. During the upgrade, it
> failed with an exit status of 127 on the backend. I assumed that this
> was because monit had restarted the service during the install. So I
> stopped monit, reinstalled, and it worked without a problem.
>
> However, after the upgrade I found I couldn't watch live tv. 8 times out
> of 10, it was failing to even go into live tv with the "Encountered a
> problem displaying video" message. However I am not getting this problem
> with SD. When I do get into live tv on HD, then it usually fails the
> first time I try to change the channel.
>
> I have also seen it suddenly come up with this message while I am just
> watching live tv and haven't touched the remote, and live tv has been
> playing for 20 minutes or more.
>
> I have restarted the machine, and also done a complete power down to
> start the card from a cold state. It has made no difference.
>
> So, I have gone back to using the dvb-s card for live tv by switching
> the order of the dvb cards in the backend. For the last several days I
> have only been using the dvb-s card for watching live tv and browsing,
> and haven't seen a problem. I'm not sure if this is related to a problem
> in the latest version or whether the failure during the install could
> have corrupted my install in some way.
>
> I would happily provide a log if someone could tell me what log is
> required, and whether I need to enable any extra logging.
>
> Aaron
>
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