[linux-dvb] Re: Nova-T 500 (dvb_usb_dib0700) usb disconnects
seger at upsys.se
Thu Mar 1 22:22:41 CET 2007
I tried increasing the buffersize on a knoppmyth box, kernel 2.6.18-chw-13
V4l-dvb freshly checked out from the repository
The change made the problem worse for me to.
Less than an hour, compared to about once a day before.
Jonas Larsson wrote:
> Patrick Boettcher wrote:
>> Hi Antti,
>> beside the XactErr which is not OK, there is maybe the chance to fix the
>> disconnect issue:
>> Can you please try to increase the URB buffer size by 1KB?
>> in the define DIB0700_DEFAULT_STREAMING_CONFIG
>> you change .buffersize = 39480, to 40504.
> I've been following this thread, hoping to see a solution to the
> Nova-T disconnect issue being found. I did some tests with this
> new buffersize.
> I've changed the buffersize (188.8.131.52) as above and tried it with
> the 3 available firmwares. In all cases did this make the problem
> much worse! I used to have one disconnect each 24-30 hours, now it took
> less than 1 hour. Event though this is bad it's a clue to what is
> really going wrong. Did anyone analyse what sizes the windows driver
> uses? Or does it also suffer from disconnects? Any other sizes that
> may be interesting?
> I can do more tests on my system if you need help. Just ask me...
> / Jonas
> linux-dvb mailing list
> linux-dvb at linuxtv.org
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