Hi,

Last year there was a thread about spontaneous muting on a PVR150. At the time 
it was put down to heat, and nothing more was heard. Sorry, I can't find my 
original copy of the thread to reply to, hence the new message.

I have a server with several PCR150s in it and I am seeing a very similar 
problem. All cards are being fed from good quality RH UHF  analogue feeds. 
After a day or so, one or more of that cards looses its audio.

Running  v4l2-ctl --log-status -d /dev/videoX gives the following for one f the 
cards that has lost its audio. The coresponding output for a fully functioning 
card is show at the bottom:

The key I suspect is in the audio detection area, where is says:
  cx25840 3-0044: Detected audio mode:       forced mode
   cx25840 3-0044: Detected audio standard:   no detected audio standard
   cx25840 3-0044: Audio muted:               no
   cx25840 3-0044: Audio microcontroller:     detecting

Does this indicate a locked microcontroller do you think?

As before, a reboot fixes this.

The system is in an air-conditioned server room at 19 Celsius, so I don't think 
this is a heat issue.

The problem is not frequency specific, but appears randomly across all the 
cards.

Kernel 2.6.23 and v4l drivers from hg on 29/3/2008, running FC5.

This has happened with a number of different server types, so I don't think it 
is hardware specific.

Any ideas of whet I should be looking for, or any more information I can supply?

Pete


BAD CARD
========
   ivtv2: =================  START STATUS CARD #2  =================
   ivtv2: Version: 1.2.0 Card: Hauppauge WinTV PVR-150
   tveeprom 3-0050: Hauppauge model 26559, rev F189, serial# 10340299
   tveeprom 3-0050: tuner model is TCL MFPE05 2 (idx 89, type 38)
   tveeprom 3-0050: TV standards PAL(B/G) PAL(I) SECAM(L/L') PAL(D/D1/K) 
(eeprom 0x74)
   tveeprom 3-0050: audio processor is CX25843 (idx 37)
   tveeprom 3-0050: decoder processor is CX25843 (idx 30)
   tveeprom 3-0050: has radio, has no IR receiver, has no IR transmitter
   cx25840 3-0044: Video signal:              present
   cx25840 3-0044: Detected format:           PAL-BDGHI
   cx25840 3-0044: Specified standard:        PAL-BDGHI
   cx25840 3-0044: Specified video input:     Composite 7
   cx25840 3-0044: Specified audioclock freq: 48000 Hz
   cx25840 3-0044: Detected audio mode:       forced mode
   cx25840 3-0044: Detected audio standard:   no detected audio standard
   cx25840 3-0044: Audio muted:               no
   cx25840 3-0044: Audio microcontroller:     detecting
   cx25840 3-0044: Configured audio standard: automatic detection
   cx25840 3-0044: Configured audio system:   automatic standard and mode 
detection
   cx25840 3-0044: Specified audio input:     Tuner (In8)
   cx25840 3-0044: Preferred audio mode:      stereo
   cx25840 3-0044: Selected 65 MHz format:    autodetect
   cx25840 3-0044: Selected 45 MHz format:    chroma
   tda9887 3-0043: Data bytes: b=0x14 c=0x70 e=0x49
   tuner 3-0061: Tuner mode:      analog TV
   tuner 3-0061: Frequency:       791.25 MHz
   tuner 3-0061: Standard:        0x0000000f
   wm8775 3-001b: Input: 2
   ivtv2: Video Input:  Tuner 1
   ivtv2: Audio Input:  Tuner 1
   ivtv2: Tuner:  TV
   ivtv2: Stream: MPEG-2 Program Stream
   ivtv2: VBI Format: No VBI
   ivtv2: Video:  720x576, 25 fps
   ivtv2: Video:  MPEG-2, 4x3, Variable Bitrate, 4000000, Peak 4000000
   ivtv2: Video:  GOP Size 12, 2 B-Frames, GOP Closure
   ivtv2: Audio:  48 kHz, Layer II, 224 kbps, Stereo, No Emphasis, No CRC
   ivtv2: Spatial Filter:  Manual, Luma 1D Horizontal, Chroma 1D Horizontal, 0
   ivtv2: Temporal Filter: Manual, 8
   ivtv2: Median Filter:   Off, Luma [0, 255], Chroma [0, 255]
   ivtv2: Status flags:    0x00200000
   ivtv2: Stream encoder MPG: status 0x0118, 0% of 8192 KiB (256 buffers) in use
   ivtv2: Read MPG/VBI: 42432397310/0 bytes
   ivtv2: ==================  END STATUS CARD #2  ==================


GOOD CARD
=========
   ivtv0: =================  START STATUS CARD #0  =================
   ivtv0: Version: 1.2.0 Card: Hauppauge WinTV PVR-150
   tveeprom 1-0050: Hauppauge model 26559, rev F189, serial# 10340721
   tveeprom 1-0050: tuner model is TCL MFPE05 2 (idx 89, type 38)
   tveeprom 1-0050: TV standards PAL(B/G) PAL(I) SECAM(L/L') PAL(D/D1/K) 
(eeprom 0x74)
   tveeprom 1-0050: audio processor is CX25843 (idx 37)
   tveeprom 1-0050: decoder processor is CX25843 (idx 30)
   tveeprom 1-0050: has radio, has no IR receiver, has no IR transmitter
   cx25840 1-0044: Video signal:              present
   cx25840 1-0044: Detected format:           PAL-BDGHI
   cx25840 1-0044: Specified standard:        PAL-BDGHI
   cx25840 1-0044: Specified video input:     Composite 7
   cx25840 1-0044: Specified audioclock freq: 48000 Hz
   cx25840 1-0044: Detected audio mode:       stereo
   cx25840 1-0044: Detected audio standard:   NICAM-I
   cx25840 1-0044: Audio muted:               no
   cx25840 1-0044: Audio microcontroller:     running
   cx25840 1-0044: Configured audio standard: automatic detection
   cx25840 1-0044: Configured audio system:   automatic standard and mode 
detection
   cx25840 1-0044: Specified audio input:     Tuner (In8)
   cx25840 1-0044: Preferred audio mode:      stereo
   cx25840 1-0044: Selected 65 MHz format:    autodetect
   cx25840 1-0044: Selected 45 MHz format:    chroma
   tda9887 1-0043: Data bytes: b=0x14 c=0x70 e=0x49
   tuner 1-0061: Tuner mode:      analog TV
   tuner 1-0061: Frequency:       767.25 MHz
   tuner 1-0061: Standard:        0x0000000f
   wm8775 1-001b: Input: 2
   ivtv0: Video Input:  Tuner 1
   ivtv0: Audio Input:  Tuner 1
   ivtv0: Tuner:  TV
   ivtv0: Stream: MPEG-2 Program Stream
   ivtv0: VBI Format: No VBI
   ivtv0: Video:  720x576, 25 fps
   ivtv0: Video:  MPEG-2, 4x3, Variable Bitrate, 4000000, Peak 4000000
   ivtv0: Video:  GOP Size 12, 2 B-Frames, GOP Closure
   ivtv0: Audio:  48 kHz, Layer II, 224 kbps, Stereo, No Emphasis, No CRC
   ivtv0: Spatial Filter:  Manual, Luma 1D Horizontal, Chroma 1D Horizontal, 0
   ivtv0: Temporal Filter: Manual, 8
   ivtv0: Median Filter:   Off, Luma [0, 255], Chroma [0, 255]
   ivtv0: Status flags:    0x00200000
   ivtv0: Stream encoder MPG: status 0x0118, 0% of 8192 KiB (256 buffers) in use
   ivtv0: Read MPG/VBI: 42968416254/0 bytes
   ivtv0: ==================  END STATUS CARD #0  ==================

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