[mythtvnz] DVB-T recording artefacts after upgrade to Mythbuntu 11.10 with HVR2200

[David Moore]

On 02/12/11 16:40, David Shepherd wrote:
> Well, I confirmed that my randomly recurring artefacts in DVB-T recordings
> are in the stored recording.  I can reproduce exactly the same pixelation
> every time at the same point in the recording and skipping back and
> forward doesn't make any difference.
>
> I also tried upgrading the driver via the instructions on the linuxtv
> wiki.  The media stack compiled and installed correctly, the card was
> detected fine, the firmware loaded but I couldn't get it to boot.  I
> double checked the firmware files and downloaded again etc but no luck.
> So I backed it all out again and will post to the v4l forums.  Here's the
> dmesg output in case anyone has any suggestions.
>
> [    5.056004] saa7164_downloadfirmware() no first image
> [    5.056063] saa7164_downloadfirmware() Waiting for firmware upload
> (NXP7164-2010-03-10.1.fw)
> [    5.056066] saa7164 0000:04:00.0: firmware: requesting
> NXP7164-2010-03-10.1.fw
> [    5.056699] saa7115 4-0021: saa7115 found (1f7115d0e100000) @ 0x42
> (ivtv i2c driver #0)
> [    5.232781] saa7164_downloadfirmware() firmware read 4019072 bytes.
> [    5.232783] saa7164_downloadfirmware() firmware loaded.
> [    5.232785] Firmware file header part 1:
> [    5.232787]  .FirmwareSize = 0x0
> [    5.232788]  .BSLSize = 0x0
> [    5.232789]  .Reserved = 0x3d538
> [    5.232790]  .Version = 0x3
> [    5.232791] saa7164_downloadfirmware() SecBootLoader.FileSize = 4019072
> [    5.232797] saa7164_downloadfirmware() FirmwareSize = 0x1fd6
> [    5.232798] saa7164_downloadfirmware() BSLSize = 0x0
> [    5.232799] saa7164_downloadfirmware() Reserved = 0x0
> [    5.232801] saa7164_downloadfirmware() Version = 0x1661c00
> [   10.496512] saa7164_downloadimage() image corrupt
>

What in the wide world of sports is the "saa7115 4-0021: saa7115 found 
(1f7115d0e100000) @ 0x42 (ivtv i2c driver #0)" message about? I think 
the saa7164 driver has it's own i2c comms code and I don't have an "ivtv 
i2c" driver loaded on my system. Maybe look for an ivtv driver and 
unload it?