[linux-dvb] problems with tuner and audio

[Francesco <francesco@follonica.org>]

Hi,
I have a full featured DVB-S rev 1.5 (technisat skystar 1).
After approximately two years of use the card seems to be next to its end.

The modules are loaded as always:
-----------
saa7146: found saa7146 @ mem d88ec000 (revision 1, irq 5) (0x13c2,0x0000).
DVB: registering new adapter (Siemens/Technotrend/Hauppauge PCI rev1.3).
Siemens/Technotrend/Hauppauge PCI rev1.3 adapter 0 has MAC addr = 
00:d0:5c:01:c6:5e
gpioirq unknown type=0 len=0
DVB: AV7111(0) - firm f0240009, rtsl b0250018, vid 71010068, app 8000261c
DVB: AV7111(0) - firmware supports CI link layer interface
av7110(0): Crystal audio DAC detected
videodev: "av7110" has no release callback. Please fix your driver for 
proper sysfs support, see http://lwn.net/Articles/36850/
saa7146_vv: saa7146 (0): registered device video0 [v4l2]
av7110: found av7110-0.
probe_tuner: try to attach to Siemens/Technotrend/Hauppauge PCI rev1.3
drivers/media/dvb/frontends/stv0299.c: setup for tuner BSRU6, TDQB-S00x
DVB: registering frontend 0:0 (STV0299/TSA5059/SL1935 based)...
---------

But I cannot more tune to any channel. For example VDR gives up with "no 
DVB device found".
Here is the relevant part of the output from v4l-info:
------------
### v4l2 device info [/dev/video0] ###
general info
   VIDIOC_QUERYCAP
       driver                  : "saa7146 v4l2"
       card                    : "dvb"
       bus_info                : "PCI:0000:00:0a.0"
       version                 : 0.5.0
       capabilities            : 0x5000005 
[VIDEO_CAPTURE,VIDEO_OVERLAY,READWRITE,STREAMING]

tuner
ioctl VIDIOCGTUNER: Invalid argument

audio
ioctl VIDIOCGAUDIO: Invalid argument
----------

Perhaps I am in front of an hardware fault. Do you?

I use kernel 2.6.9 and the only change I made recently is the mandatory 
upgrade to udev, nothing more.
Am I missing something?

Ciao,
Francesco