[mythtv-users] Can't get a good Playback Profile
MythTV at assuredsolutions.com
Mon Dec 8 08:45:52 UTC 2008
In the previous incarnation of my MythTV install, I used the generic
"nv" X11 driver to watch my HD shows. The newest version of MythTV
shows a blank screen if the "nv" X11 driver is used; thus, I have to
use the proprietary driver "nvidia", which is suppose to be better...
Well, I can't get my Playback Profiles to work without artifacts,
dropped frames, loss of sound, etc. "Mac Hardware acceleration"
Decoder with "2" Max CPUs work okay for very slow motion, but a pan,
or sports, or even the actor's eyes blinking are beyond the capacity
for my system now. "libmpeg2" Decoder with "quartz-blit" Video
Render sometimes works too on certain types of reality TV. But, I
can't find any setting that is near as decent as that generic "nv"
X11 driver I use to use.
I have read the Playback Profiles page multiple times:
The idea behind Playback Profiles seems cool but it also assumes that
you know the resolution of your shows. How do I find out what the
resolutions are on my shows?
Because you can have 5 or more profiles, I don't know which profile
is selected when playback is occurring. Is this mentioned in /var/
log/mythtv/mythfrontend.log? How do I know which profile setting is
I have created a Test profile that has only one setting. Thus, I
assume that that's the setting being used. Is this a correct
assumption? What happens when the setting doesn't work or my
hardware doesn't support the setting?
There are probably a hundred different settings I can try thus time
consuming and tedious. This is standard technology; there has got to
be a more scientific way to know what profile setting to use. Is
there another location to go to learn more about configuring Playback
My configuration is:
MythTV version: 0.21.20080304-1 18722
Ubuntu 8.10, kernel version: 2.6.27-9-generic
CPU: Intel Pentium 4 CPU 3.2GHz Socket 775 800 FSB w/Hyper Threading
Memory: 1Gig DDR 333 Memory 180 Pin
Motherboard: ASRock 775i65G Mother Board
Optical Drive: LG 18X DVD RW + Dual Layer
Hard Drive: 1 Western Digital 250 Gig HD contains the OS and 1
Western Digital 1 TB 7200 RPM Cache Serial ATA contains the video data
Video onboard: Integrated SiS Ultra256 2D/3D Graphics
Video card: Micro-star International (MSI) AGP GeForce FX5200-
TD128LF, 8X, 128M, DDR1, D-Sub, DVI-D, TV-out
Audio onboard: AUDIO ADI AD1888 6-channel audio CODEC
Audio card: Riviera C-Media CMI 8738 (Connected to my entertainment
center via the optical cable)
Network Card: Onboard 10/100 Network Card
Tuner cards: 2 pcHDTV HD-5500
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