[mythtv-users] 0.24+fixes - tearing, /dev/rtc permissions and getting openGL to work

[Mike]

Sorry, forgot to add the extra debugging flags. These are extracts of
logs when I changed the mode and started to play the same recorded
asset.

http://michael.dtmc.ca/bd/mythtvlogs/vdpau_deinterlacing/advanced1_extra.txt
http://michael.dtmc.ca/bd/mythtvlogs/vdpau_deinterlacing/advanced2_extra.txt
http://michael.dtmc.ca/bd/mythtvlogs/vdpau_deinterlacing/temporal2_extra.txt

When I enabled this much debugging Advanced 1x HW was jerky.  Adv 2x
was updating about 25% of the time.  Temporal 2x played ok but you
could occasionally see/hear a glitch.


On 24 February 2011 21:13, Mike <mythtv at dtmc.ca> wrote:
> I have Kingston 2Gb SODIMM 204-pin DDR3-1333Mgz PC3 10600 CL9...
> probably a single DIMM.
>
> xorg.conf section is present.
>
> I rebooted and found Temporal 2x actually worked with no glitches.
> Previously, I had just restarted GDM - maybe this wasn't sufficient?
>
> BTW my 'test' for good HDTV playback is: watching a hockey game the
> point at which the camera pans the length of the ice following the
> game.  Looking for clarity of players sticks and blur.  Unfortunately,
> or fortunately, this is the only thing I want to watch on TV but seems
> to be very taxing for my last computer and somewhat of a challenge
> still for the Zotac box.  The signal is OTA HDTV, not cable.
>
> Anyway, back to regular scheduled programming... after a reboot I
> tried the following:
>
> Temporal 1x: good HDTV playback
> http://michael.dtmc.ca/bd/mythtvlogs/vdpau_deinterlacing/temporal1.txt
>
> Advanced 1x: ok playback but 'fuzzier' than Temporal 1x.
> http://michael.dtmc.ca/bd/mythtvlogs/vdpau_deinterlacing/advanced1.txt
>
> Temporal 2x: good, perhaps crisper than Temporal 1x
> http://michael.dtmc.ca/bd/mythtvlogs/vdpau_deinterlacing/temporal2.txt
>
> Advanced 2x: only saw about 50% of the frames
> http://michael.dtmc.ca/bd/mythtvlogs/vdpau_deinterlacing/advanced2.txt
>
> I also recalled that I upgraded the kernel to 2.6.36 recently on both
> front and backend server. I did this to avoid a set of crashes which
> were reported in the bug below.  This didn't exactly help, I also
> locally compiled 0.24+fixes mythtv and this did the trick.
> http://michael.dtmc.ca/bd/mythtvlogs/vdpau_deinterlacing/kernelversion.txt
>
> This bug sits idle in Ubuntu which causes the backend to bail but
> usually the frontend to crash and present the login screen very
> consistently.
> https://bugs.launchpad.net/ubuntu/+source/linux/+bug/659348
> http://michael.dtmc.ca/bd/mythtvlogs/023ubuntu1010crashes/
>
> I also suffer from this occasionally usually on startup:
> https://bugs.launchpad.net/ubuntu/+source/linux/+bug/576352
>
> BTW - thanks for the rapid response on this forum... I feel I have
> made some significant strides! ;o)
>
> Mike.
>
> On 24 February 2011 20:20, Taylor Ralph <taylor.ralph at gmail.com> wrote:
>> On Thu, Feb 24, 2011 at 7:54 PM, Mike <mythtv at dtmc.ca> wrote:
>>> I tried 2x but the comments suggest my display device should be
>>> capable of twice the frame rate.  I have a 60Hz Plasma (about 5years
>>> old).  Aside from that, when I enable 2x any-mode I end up with
>>> stuttering playback.  This was even worse on an older computer but
>>> with the ION it plays but misses 4/5th of the frames.  Is there some
>>> configuration I'm missing?  I have VDPAU compiled into mythtv
>>> 0.24+fixes.
>>>
>>
>> Your interlaced source should be 29.97 fps so a 60 Hz display is
>> capable of 2x deinterlacing. I've not heard of a report that mentions
>> trouble with an ION and 2x deinterlacing. Please post a frontend log
>> with -v playback,timestamp,extra and I can try to determine the issue.
>> One more question is if you have 2 DIMMs installed or 1 DIMM for your
>> ION memory? And please check again to make sure composite is disabled.
>>
>> Regards.
>> --
>> Taylor
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>