[mythtv] audio and video problems

[Harry Wynn]

i have mythtv running to the point where the database is being filled, i can view the program guide and the front end starts.  when i go to watch live tv, all i get is the sound without and video, ultimately ending in "strange error, flushing buffer."  i am running red hat 8.0, with all current patches applied.  my capture card is a pctv (bt878) and video card is an ati rage mobility p/m, and i am using alsa sound drivers.

below is the result of running mythfrontend in debug mode, along with the output from xvinfo.

thanks in advance for everyone's help.



GNU gdb Red Hat Linux (5.2.1-4)
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This GDB was configured as "i386-redhat-linux"...
(gdb) run
Starting program: /usr/local/mythtv/programs/mythfrontend/mythfrontend
[New Thread 8192 (LWP 1052)]
Probed: /dev/video0 - Television
Probed: /dev/video0 - Composite1
Probed: /dev/video0 - S-Video
[New Thread 16385 (LWP 1062)]
[New Thread 8194 (LWP 1063)]
[New Thread 16387 (LWP 1064)]
[New Thread 24580 (LWP 1065)]
Changing from None to WatchingLiveTV
[New Thread 32773 (LWP 1066)]
[New Thread 40966 (LWP 1067)]
[New Thread 49159 (LWP 1068)]
strange error flushing buffer ...
[New Thread 57352 (LWP 1069)]
only read VIDIOCSYNC1: Interrupted system call
Couldn't find osdtheme: defaultosd
1180 from 4096 bytes from '/dev/dsp'
read audio: Interrupted system call
[New Thread 65545 (LWP 1070)]
only read 388 from 4096 bytes from '/dev/dsp'
read audio: Interrupted system call
VIDIOCSYNC1: Interrupted system call
[New Thread 73738 (LWP 1071)]
only read 2168 from 4096 bytes from '/dev/dsp'
read audio: Interrupted system call
VIDIOCSYNC1: Interrupted system call
Couldn't find Xv support, exiting

Program exited normally.
(gdb) bt
No stack.
(gdb)





X-Video Extension version 2.2
screen #0
  Adaptor #0: "video4linux"
    number of ports: 1
    port base: 55
    operations supported: PutVideo
    supported visuals:
      depth 16, visualID 0x23
      depth 16, visualID 0x24
    number of attributes: 7
      "XV_ENCODING" (range -1000 to 1000)
              client settable attribute
              client gettable attribute (current value is 0)
      "XV_BRIGHTNESS" (range -1000 to 1000)
              client settable attribute
              client gettable attribute (current value is 0)
      "XV_CONTRAST" (range -1000 to 1000)
              client settable attribute
              client gettable attribute (current value is -157)
      "XV_SATURATION" (range -1000 to 1000)
              client settable attribute
              client gettable attribute (current value is -8)
      "XV_HUE" (range -1000 to 1000)
              client settable attribute
              client gettable attribute (current value is 0)
      "XV_MUTE" (range 0 to 1)
              client settable attribute
              client gettable attribute (current value is 0)
      "XV_FREQ" (range 0 to 16000)
              client settable attribute
              client gettable attribute (current value is 980)
    number of encodings: 21
      encoding ID #0: "pal-television"
        size: 768 x 576
        rate: 0.020000
      encoding ID #1: "ntsc-television"
        size: 640 x 480
        rate: 0.016683
      encoding ID #2: "secam-television"
        size: 768 x 576
        rate: 0.020000
      encoding ID #3: "palnc-television"
        size: 640 x 576
        rate: 0.020000
      encoding ID #4: "palm-television"
        size: 640 x 576
        rate: 0.020000
      encoding ID #5: "paln-television"
        size: 768 x 576
        rate: 0.020000
      encoding ID #6: "ntscjp-television"
        size: 640 x 480
        rate: 0.016683
      encoding ID #7: "pal-composite1"
        size: 768 x 576
        rate: 0.020000
      encoding ID #8: "ntsc-composite1"
        size: 640 x 480
        rate: 0.016683
      encoding ID #9: "secam-composite1"
        size: 768 x 576
        rate: 0.020000
      encoding ID #10: "palnc-composite1"
        size: 640 x 576
        rate: 0.020000
      encoding ID #11: "palm-composite1"
        size: 640 x 576
        rate: 0.020000
      encoding ID #12: "paln-composite1"
        size: 768 x 576
        rate: 0.020000
      encoding ID #13: "ntscjp-composite1"
        size: 640 x 480
        rate: 0.016683
      encoding ID #14: "pal-svideo"
        size: 768 x 576
        rate: 0.020000
      encoding ID #15: "ntsc-svideo"
        size: 640 x 480
        rate: 0.016683
      encoding ID #16: "secam-svideo"
        size: 768 x 576
        rate: 0.020000
      encoding ID #17: "palnc-svideo"
        size: 640 x 576
        rate: 0.020000
      encoding ID #18: "palm-svideo"
        size: 640 x 576
        rate: 0.020000
      encoding ID #19: "paln-svideo"
        size: 768 x 576
        rate: 0.020000
      encoding ID #20: "ntscjp-svideo"
        size: 640 x 480
        rate: 0.016683-------------- next part --------------
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