Thanks Scott!

Unfortunately, I'm now discovering some problems. Live TV works great,
but recorded TV doesn't work at all. The first problem I ran into was
the NIC overrun problem. It looks like in Ubuntu 9.04, this can be
fixed by:

sed -i -e "s/^# kopt=root=UUID=.* ro$/& processor.max_cstate=2/" /boot/
grub/menu.lst
update-grub

Also, I forgot to include setting the frontend's playback settings as
indicated here:

http://code.google.com/p/atv-bootloader/wiki/mythtv

Note that these settings didn't work perfectly for me. The OSD did not
appear and I wasn't able to change channels on live TV. Setting the
OSD Render to Chromakey fixed the problem (even though the log shows
an error that it can't find chromakey, whatever it falls back to works
fine). I've tried setting the renderer to both ia44blend and
chromakey, neither made a difference in fixing the playback of
recorded TV. Changing the Video Render to Standard (ffmpeg) didn't
work either. In all cases, I simply get a black screen.

Here's an applicable section of my frontend log file (using Standard
XvMC, xvmc-blit and ia44blend):

2010-08-29 11:27:56.541 NVP: prebuffering pause
2010-08-29 11:27:57.569 NVP: prebuffering pause
2010-08-29 11:27:58.641 NVP: prebuffering pause
2010-08-29 11:27:58.962 TV: Attempting to change from None to
WatchingPreRecorded
2010-08-29 11:27:59.086 DPMS Deactivated
2010-08-29 11:28:02.394 AFD: Opened codec 0xa10ba90,
id(MPEG2VIDEO_XVMC) type(Video)
2010-08-29 11:28:02.394 AFD: codec AC3 has 6 channels
2010-08-29 11:28:02.397 AFD: Opened codec 0x9cbd800, id(AC3)
type(Audio)
2010-08-29 11:28:02.397 AFD: codec AC3 has 1 channels
2010-08-29 11:28:02.399 AFD: Opened codec 0x9bb43e0, id(AC3)
type(Audio)
2010-08-29 11:28:02.421 AFD: Opened codec 0x9c98b60, id(MPEG2VIDEO)
type(Video)
2010-08-29 11:28:02.443 Opening audio device 'default'. ch 2(2) sr
48000
2010-08-29 11:28:02.452 Opening ALSA audio device 'default'.
2010-08-29 11:28:02.604 AudioOutput Warning: Mixer attach error -2: No
such file or directory
                        Check Mixer Name in Setup: '/dev/mixer'
2010-08-29 11:28:02.948 VideoOutputXv: Desired video renderer 'xvmc-
blit' not available.
                        codec 'MPEG2' makes 'xv-blit,xshm,opengl,xlib,' 
available, using
'xv-blit' instead.
2010-08-29 11:28:02.962 VideoOutputXv: XVideo Adaptor Name: 'NV17
Video Texture'
2010-08-29 11:28:03.581 OSD Theme Dimensions W: 640 H: 480
2010-08-29 11:28:08.591 Realtime priority would require SUID as root.
2010-08-29 11:28:08.036 TV: Changing from None to WatchingPreRecorded
2010-08-29 11:28:10.186 FilterManager: failed to load filter 'none',
no such filter exists
2010-08-29 11:28:10.186 Couldn't load deinterlace filter none
2010-08-29 11:28:10.310 [mpegvideo_xvmc @ 0xb6bf5744]get_buffer()
failed (1 1073741824 2 (nil))
2010-08-29 11:28:10.310 AFD Error: Unknown decoding error
2010-08-29 11:28:10.322 Video timing method: USleep with busy wait
2010-08-29 11:28:10.336 [mpegvideo_xvmc @ 0xb6bf5744]get_buffer()
failed (1 1073741824 2 (nil))
2010-08-29 11:28:10.347 AFD Error: Unknown decoding error
2010-08-29 11:28:10.352 [mpegvideo_xvmc @ 0xb6bf5744]get_buffer()
failed (1 1073741824 2 (nil))
2010-08-29 11:28:10.352 AFD Error: Unknown decoding error
2010-08-29 11:28:10.361 [mpegvideo_xvmc @ 0xb6bf5744]get_buffer()
failed (1 1073741824 2 (nil))
2010-08-29 11:28:10.361 AFD Error: Unknown decoding error
2010-08-29 11:28:10.366 [mpegvideo_xvmc @ 0xb6bf5744]get_buffer()
failed (1 1073741824 2 (nil))

Any suggestions would be greatly appreciated! I'll update my guide
above once I get these quirks worked out (can you edit a previous
post?).

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