Hi,

I've been using an HVR-1600 card for a while now and it was working great up 
until a couple of days ago.  There was a power outage here that forced my 
Myth box to reboot, and when it came back up I could get nothing but 
intermittent static sound from my HVR-1600 analog input even though the video 
seems to be working correctly (the ATSC tuner is fine as well).  I've tried a 
number of things that I found including setting mmio_ndelay (even though 
that's not supposed to be necessary anymore) but nothing I've tried has made 
any difference.

Here's the output from v4l2-ctl --log-status:
$v4l2-ctl -d1 --log-status

Status Log:

   [ 1963.189818] cx18-0: =================  START STATUS CARD #0  
=================
   [ 1963.189833] cx18-0: Version: 1.0.4  Card: Hauppauge HVR-1600
   [ 1963.235187] tveeprom 3-0050: Hauppauge model 74041, rev C6B2, serial# 
931134
   [ 1963.235193] tveeprom 3-0050: MAC address is 00-0D-FE-0E-35-3E
   [ 1963.235196] tveeprom 3-0050: tuner model is TCL M2523_5N_E (idx 112, 
type 50)
   [ 1963.235199] tveeprom 3-0050: TV standards NTSC(M) (eeprom 0x08)
   [ 1963.235202] tveeprom 3-0050: audio processor is CX23418 (idx 38)
   [ 1963.235204] tveeprom 3-0050: decoder processor is CX23418 (idx 31)
   [ 1963.235207] tveeprom 3-0050: has no radio, has IR receiver, has IR 
transmitter
   [ 1963.235215] cx18-0: Video signal:              present
   [ 1963.235217] cx18-0: Detected format:           NTSC-M
   [ 1963.235219] cx18-0: Specified standard:        NTSC-M
   [ 1963.235221] cx18-0: Specified video input:     Composite 7
   [ 1963.235223] cx18-0: Specified audioclock freq: 48000 Hz
   [ 1963.235236] cx18-0: Detected audio mode:       mono
   [ 1963.235238] cx18-0: Detected audio standard:   BTSC
   [ 1963.235240] cx18-0: Audio muted:               yes
   [ 1963.235242] cx18-0: Audio microcontroller:     running
   [ 1963.235244] cx18-0: Configured audio standard: automatic detection
   [ 1963.235247] cx18-0: Configured audio system:   BTSC
   [ 1963.235249] cx18-0: Specified audio input:     Tuner (In8)
   [ 1963.235251] cx18-0: Preferred audio mode:      stereo
   [ 1963.240544] cs5345 3-004c: Input:  1
   [ 1963.240550] cs5345 3-004c: Volume: 0 dB
   [ 1963.240558] tuner 4-0061: Tuner mode:      analog TV
   [ 1963.240560] tuner 4-0061: Frequency:       241.25 MHz
   [ 1963.240563] tuner 4-0061: Standard:        0x0000b000
   [ 1963.240566] cx18-0: Video Input: Tuner 1
   [ 1963.240568] cx18-0: Audio Input: Tuner 1
   [ 1963.243551] cx18-0: GPIO:  direction 0x00003001, value 0x00003001
   [ 1963.243556] cx18-0: Tuner: TV
   [ 1963.243559] cx18-0: Stream: MPEG-2 Program Stream
   [ 1963.243562] cx18-0: VBI Format: No VBI
   [ 1963.243565] cx18-0: Video:  640x480, 30 fps
   [ 1963.243568] cx18-0: Video:  MPEG-2, 4x3, Variable Bitrate, 4500000, Peak 
6000000
   [ 1963.243572] cx18-0: Video:  GOP Size 15, 2 B-Frames, GOP Closure
   [ 1963.243575] cx18-0: Audio:  48 kHz, MPEG-1/2 Layer II, 384 kbps, Stereo, 
No Emphasis, No CRC
   [ 1963.243579] cx18-0: Spatial Filter:  Manual, Luma 1D Horizontal, Chroma 
1D Horizontal, 0
   [ 1963.243582] cx18-0: Temporal Filter: Manual, 0
   [ 1963.243585] cx18-0: Median Filter:   Off, Luma [0, 255], Chroma [0, 255]
   [ 1963.243587] cx18-0: Status flags: 0x00200001
   [ 1963.243591] cx18-0: Stream encoder MPEG: status 0x0000, 0% of 2048 KiB 
(64 buffers) in use
   [ 1963.243594] cx18-0: Stream encoder YUV: status 0x0000, 0% of 2048 KiB 
(16 buffers) in use
   [ 1963.243598] cx18-0: Stream encoder VBI: status 0x0000, 0% of 1015 KiB 
(60 buffers) in use
   [ 1963.243601] cx18-0: Stream encoder PCM audio: status 0x0000, 0% of 1024 
KiB (256 buffers) in use
   [ 1963.243604] cx18-0: Read MPEG/VBI: 2422784/0 bytes
   [ 1963.243606] cx18-0: ==================  END STATUS CARD #0  
==================

and dmesg output for cx18:
[   13.434567] cx18:  Start initialization, version 1.0.4
[   13.698678] cx18-0: Initializing card #0
[   13.698684] cx18-0: Autodetected Hauppauge card
[   13.724308] cx18 0000:01:08.0: PCI INT A -> Link[APC1] -> GSI 16 (level, 
high) -> IRQ 16
[   13.724320] cx18-0: Unreasonably low latency timer, setting to 64 (was 32)
[   13.726730] cx18-0: cx23418 revision 01010000 (B)
[   13.965268] cx18-0: Autodetected Hauppauge HVR-1600
[   13.965271] cx18-0: Raw VBI supported; Sliced VBI is not yet supported
[   14.134433] tuner 4-0061: chip found @ 0xc2 (cx18 i2c driver #0-1)
[   14.134459] cs5345 3-004c: chip found @ 0x98 (cx18 i2c driver #0-0)
[   14.138106] cx18-0: Registered device video1 for encoder MPEG (64 x 32 kB)
[   14.138110] DVB: registering new adapter (cx18)
[   14.320416] cx18-0: DVB Frontend registered
[   14.320419] cx18-0: Registered DVB adapter0 for TS (32 x 32 kB)
[   14.320465] cx18-0: Registered device video33 for encoder YUV (16 x 128 kB)
[   14.320503] cx18-0: Registered device vbi1 for encoder VBI (60 x 17328 
bytes)
[   14.320541] cx18-0: Registered device video25 for encoder PCM audio (256 x 
4 kB)
[   14.320545] cx18-0: Initialized card #0: Hauppauge HVR-1600
[   14.322254] cx18:  End initialization
[   58.214147] cx18-0: loaded v4l-cx23418-cpu.fw firmware (158332 bytes)
[   58.372590] cx18-0: loaded v4l-cx23418-apu.fw firmware V00120000 (141200 
bytes)
[   58.378919] cx18-0: FW version: 0.0.74.0 (Release 2007/03/12)
[   59.270781] cx18-0: loaded v4l-cx23418-dig.fw firmware (16382 bytes)

I do see that the audio is muted and I tried unmuting it, but as soon as I do 
a capture it gets muted again.  I found another mailing list thread with 
those symptoms, but supposedly the problem was fixed.  Plus the workaround 
there didn't help.

I've built the latest cx18 from the v4l repo and re-downloaded the firmware 
just in case, but neither helped either.

It does seem that my cable company may have made changes that coincided with 
this power outage because suddenly my cable quality seems to have improved 
signficantly on my PVR150 that's still working.  Not sure whether that could 
be related.  I was also running a 2.6.24 kernel previously when this was 
working but now I'm on 2.6.27 because I did an update to make sure I had the 
newest versions of everything after it quit working.

Any suggestions would be appreciated.  Thanks.

-Ben

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