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

[Mike]

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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