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ASUSTeK Tiger LNA Hybrid Capture Device - signal unstable.

Hi.

This thread:

http://www.linuxtv.org/pipermail/linux-dvb/2007-February/015705.html

has helped me to (partially) solve my problems with a DVB-T card (PCI) ASUSTeK Tiger LNA Hybrid Capture Device
with Jayhawk tuner.

/sbin/lspci -v

03:0a.0 Multimedia controller: Philips Semiconductors SAA7133/SAA7135 Video Broadcast Decoder (rev d1)
Subsystem: ASUSTeK Computer Inc. Unknown device 4871
Flags: bus master, medium devsel, latency 32, IRQ 23
Memory at fdefe000 (32-bit, non-prefetchable) [size=2K]

This is the procedure that I have followed:

1) I have downloaded, compiled and installed, latest Mercurial v4l-dvb-6a48ec9e0f65.tar.bz2

2) I have downloaded the firmware dvb-fe-tda10046.fw (from LifeView) and put it in /lib/firmware.

3) I have created a file /etc/modprobe.d/dvb.conf with these lines:

alias char-major-81 videodev
alias char-major-81-0 saa7134
options saa7134 card=78 tuner 67 i2c_scan=1 gpio_tracking=1 alsa=1

alias        char-major-89        i2c-dev

(for me card=78 works better than card=109)

4) I have added to /etc/rc.d/rc.modules these lines:

/sbin/modprobe saa7134-alsa
/sbin/modprobe saa7134-dvb

At boot time I get (from dmesg):

saa7133[0]: found at 0000:03:0a.0, rev: 209, irq: 23, latency: 32, mmio: 0xfdefe000
saa7133[0]: subsystem: 1043:4871, board: ASUSTeK P7131 Dual [card=78,insmod option]
saa7133[0]: board init: gpio is 0
saa7133[0]: gpio: mode=0x0000000 in=0x0000000 out=0x0000000 [pre-init]
input: saa7134 IR (ASUSTeK P7131 Dual) as /class/input/input5
saa7133[0]: i2c eeprom 00: 43 10 71 48 54 20 1c 00 43 43 a9 1c 55 d2 b2 92
saa7133[0]: i2c eeprom 10: ff ff ff 0f ff 20 ff ff ff ff ff ff ff ff ff ff
saa7133[0]: i2c eeprom 20: 01 40 01 02 03 00 01 03 08 ff 00 cf ff ff ff ff
saa7133[0]: i2c eeprom 30: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
saa7133[0]: i2c eeprom 40: ff 21 00 c2 96 10 03 22 15 50 ff ff ff ff ff ff
saa7133[0]: i2c eeprom 50: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
saa7133[0]: i2c eeprom 60: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
saa7133[0]: i2c eeprom 70: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
saa7133[0]: i2c scan: found device (at) 0x10 [???]
saa7133[0]: i2c scan: found device (at) 0x96 [???]
saa7133[0]: i2c scan: found device (at) 0xa0 [eeprom]
saa7133[0]: gpio: mode=0x0200000 in=0x0000000 out=0x0000000 [Television]
saa7133[0]: gpio: mode=0x0200000 in=0x0000000 out=0x0000000 [Television]
tuner 2-004b: chip found (at) 0x96 (saa7133[0])
tuner 2-004b: type set to 67 (Philips TD1316 Hybrid Tuner)
tuner 2-004b: type set to 67 (Philips TD1316 Hybrid Tuner)
saa7133[0]: registered device video0 [v4l2]
saa7133[0]: registered device vbi0
saa7133[0]: registered device radio0
saa7133[0]: gpio: mode=0x0200000 in=0x0000000 out=0x0000000 [Television]
DVB: registering new adapter (saa7133[0]).
DVB: registering frontend 0 (Philips TDA10046H DVB-T)...
tda1004x: setting up plls for 48MHz sampling clock
tda1004x: timeout waiting for DSP ready
tda1004x: found firmware revision 0 -- invalid
tda1004x: trying to boot from eeprom
tda1004x: timeout waiting for DSP ready
tda1004x: found firmware revision 0 -- invalid
tda1004x: waiting for firmware upload...
tda1004x: found firmware revision 29 -- ok
saa7134 ALSA driver for DMA sound loaded
saa7133[0]/alsa: saa7133[0] at 0xfdefe000 irq 23 registered as card -1

All works but when I try to view something with kaffeine or xine, the signal appears
unstable; this is a snapshot from xine:

http://xoomer.alice.it/ramsoft/shots/snapshot1.jpg

Under Windows XP (software CyberLink Power Cinema) the signal is very stable.

Another problem is that under Linux I cannot tune VHF channels; there is a MUX at
226.5 MHz but, neither kaffeine, nor scan, can find it.

What is wrong in my procedure?

Thanks.

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