[mythtv-users] Post mythbuntu upgrade (1204->1404) == video crashes & lockups

Kingsley Turner krt at krt.com.au
Mon Oct 6 19:04:44 UTC 2014


On 06/10/14 11:15, Kingsley Turner wrote:
> On 04/10/14 08:24, Philip Brady wrote:
>>
>> > I upgraded my mythbox today to try to fix some other problems we were
>> > experiencing.
>> > I did a 'do-release-upgrade' to upgrade 12.04 to 14.04.
>> >
>> > Everything went mostly smoothly, looking perfect in face.
>> >
>> > But now it *looks* like we're getting system lockups playing back video.
>> > (it may be locking up independant of what it's doing, but I doubt it).
>> > I'm not 100% sure what's up, but there's video corruption, black bars,
>> > red-screens, etc. etc. then a few seconds later the box locks up.
>> > It does run OK for about 20 minutes sometimes.
>> >
>> > Worked perfectly before the update.
>> >
>> > To try to fix the problem, I've removed (with purge) the nvidia 
>> drivers, and
>> > re-installed nvidia_331_updates.
>> > But this has made zero difference.
>> >
>> > I tried looking for kernel panic debug messages or suchlike, but alas 
>> found
>> > nothing... where would I find these?
>> >
>> > Any advice very much appreciated.
>> >
>> > Maybe I should test it without vdpau? Worth a shot?
>> >
>> > thanks,
>> > -kt
>>
>> I also have 8300 graphics – 311 was a total disaster but 304 is stable 
>> with dvb-t in the uk, mpeg2 standard definition.  See my response here:
>>
>> http://ubuntuforums.org/showthread.php?t=2244108
>>
>>
>
> Thanks Phil,
>
> Ok, I'm running an onboard nvidia 9400 (IIRC).
> So following from instructions in the thread you referneced I've :
>
> # sudo apt-get remove --purge nvidia*
> # sudo apt-get install nvidia-304 nvidia-settings
>
> I'll reboot the box and we'll see how it goes.  Hopefully it's a fix.  
> Fingers crossed ;)
>

I must report a big negative on this.  It made no difference.
(actually it got worse, with the screensaver not even getting open-gl).
I also tried with nvidia-311.

Today I'm going to try to backup the database & recordings, and re-install.

cheers,
-kt


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