[pvrusb2] Very bad image quality using driver in 2.6.18

[Henrik Elowsson]

Hi all,

picked up a used USB PVR yesterday that I intend to use with my 
mythtv-system. It works on my laptop with windows XP so there's nothing 
wrong with the hardware itself.

It probes and inserts the correct module and tuning seems to be working, 
but the image quality is simply awful, the entire picture is noisy. 
Sound is very good with no static and I have now problems scanning and 
changing channels. No difference between running through mythtv or just 
cat /dev/video > foo.mpg.

Any tips and tricks I should try out?


System: Debian testing, 2.6.18-3-686
PVR model: 29035 Rev C524 PAL-I

--- dmesg-output ---
msp3400 0-0040: MSP3415G-B8 found @ 0x80 (pvrusb2_a)
msp3400 0-0040: MSP3415G-B8 supports nicam and radio, mode is autodetect 
and autoselect
saa7115 0-0021: saa7115 found @ 0x42 (pvrusb2_a)
tuner 0-0061: chip found @ 0xc2 (pvrusb2_a)
tveeprom 0-0050: Hauppauge model 29035, rev C524, serial# 7206356
tveeprom 0-0050: tuner model is Philips FM1246 (idx 24, type 1)
tveeprom 0-0050: TV standards PAL(I) (eeprom 0x10)
tveeprom 0-0050: audio processor is MSP3415 (idx 6)
tveeprom 0-0050: decoder processor is SAA7115 (idx 19)
tveeprom 0-0050: has radio, has IR remote
tuner 0-0061: type set to 1 (Philips PAL_I (FI1246 and compatibles))
msp3400 0-0040: MSP3415G-B8 rev1 = 0x0207 rev2 = 0x0f48
msp3400 0-0040: Audio:    volume 65535
msp3400 0-0040: Audio:    balance 0 bass 0 treble 0 loudness off
msp3400 0-0040: Standard: autodetect start (mono)
msp3400 0-0040: Audmode:  0x0001
msp3400 0-0040: Routing:  0x00000000 (input) 0x00000044 (output)
msp3400 0-0040: ACB:      0x0c00
saa7115 0-0021: Audio frequency: 44100 Hz
saa7115 0-0021: Input:           Composite 4
saa7115 0-0021: Video signal:    bad
saa7115 0-0021: Frequency:       50 Hz
saa7115 0-0021: Detected format: BW/No color
tuner 0-0061: Tuner mode:      analog TV
tuner 0-0061: Frequency:       175.25 MHz
tuner 0-0061: Standard:        0x00000010
pvrusb2: Device initialization completed successfully.
pvrusb2: registered device video0 [mpeg]
---

Any help appreciated, I've kind of run out of ideas... :(


Best regards
Henrik