Problems with Freecom USB DVB-T dongles
Hi,
I'm having problems with a pair of Freecom USB dongles and am wondering if anyone has any pointers?
The dongles appear identical, Freecom Art No. 25452. and have the same USB descriptors, ID 14aa:0221.
In the boot log they show as "WideView WT-220U PenType Receiver (Typhoon/Freecom)", using firmware dvb-usb-wt220u-02.fw.
I have been using these dongles in a Via Epia 15000 system, running Debian Lenny i686 for the last 18ish months without issue.
I've just moved them to an AMD 760 based motherboard (Sempron processor) running Debian Squeeze x86_64.
The dongles do function up to a point.
In dmesg at boot I see one message for each device "dvb-usb: recv bulk message failed: -110"
Other than this everything seems OK.
The system is running MythTV Backend (0.23) and I can have them both recording simultaneously as I would expect.
At some point however I start to get floods of messages to the console (repeats of "dvb-usb: recv bulk message failed: -110") and the system slows down to a crawl.
The only way I've found to recover from this is to shutdown mythbackend and physically remove the dongles from the system. At this point I get a few messages "dvb-usb: recv bulk message failed: -23" then I guess the driver is unloaded and the system appears to recover fully.
I can now plug the dongles back in and they appear to function again until the next time.
I've tried unloading the dvb_usb_dtt200u when I get the flood but I get an error saying the device is in use.
I'm not sure what's triggering the problem - sometimes it'll kick in after 10 minutes, the last fail came after ~10 hours.
I've tried a few versions of the V4L code base but am seeing the same in each.
From googling it seems that various people have experienced similar issues but I've yet to find anyone offering a solution.
Any ideas?
Signature · 2 lines
Dave Cunningham dave at upsilon org uk
PGP KEY ID: 0xA78636DCIn message <[email protected]>, dave cunningham wrote
Quoted 4 lines
Hi,
I'm having problems with a pair of Freecom USB dongles and am wondering if anyone has any pointers?
<snip>
Quoted 9 lines
In dmesg at boot I see one message for each device "dvb-usb: recv bulk message failed: -110"
Other than this everything seems OK.
The system is running MythTV Backend (0.23) and I can have them both recording simultaneously as I would expect.
At some point however I start to get floods of messages to the console (repeats of "dvb-usb: recv bulk message failed: -110") and the system slows down to a crawl.
<snip>
I'm still looking for any suggestions. From a brief look at the source this message seems to be coming from a call to usb_bulk_msg.
Given that the dongles are OK in a via system does this likely suggest a compatibility issue with the USB host controller on the AMD 760G board?
I'm I likely to get anywhere trying to debug the code or will a USB analyser be required to work out what's going on?
Signature · 2 lines
Dave Cunningham dave at upsilon org uk
PGP KEY ID: 0xA78636DC