On Monday 18 January 2010 20:41:08 Leo wrote:
> On 18/01/10 09:07, Stephen Rowles wrote:
> > On 01/18/2010 08:27 AM, Philip Stubbs wrote:
> >> 2010/1/17 Leo<linux@???>:
> >>> Is anyone out there using a digital TV card on Ubuntu 9.10 and also
> >>> dual booting with windows? If so do you find that after switching back
> >>> from Windows to Ubuntu the TV card doesn't work, and you have to reboot
> >>> again into Ubuntu?
> >>> If not, can anyone tell me how I'd go about finding out what's changed
> >>> between 9.04 and 9.10 in terms of dvb firmware, drivers and dvbstream
> >>> between the two version of Ubuntu, so that I could try and figure out
> >>> what's broken.
> >>
> >> When I first started using my USB dvb dongle, I had the opposite
> >> problem. It would only work if I loaded Windows, then rebooted into
> >> Linux. It turned out that I did not have the correct firmware in
> >> Linux. From my experience, it sounds like the firmware loaded by
> >> windows is not the same as the one loaded by Linux. Is it possible to
> >> up/down grade the windows driver so that it matches the Linux one?
> >
> > Different and incompatible firmware is probably the the issue. If you
> > re-boot (rather than power off) the device will remain powered, so the
> > firmware will still be loaded once you change OS.
> >
> > A short term work around would be to power off your machine, then switch
> > on again. This will ensure that the device is powered down and so a new
> > firmware load will occur. To compare the difference in firmware:
> >
> > Check /var/log/messages (assuming that is the right file on debian, it
> > is for redhat) for dvb output to identify the firmware file being loaded.
> > Find that file, and diff between 9.10 and 9.04
>
> I did try using the old firmware, but it didn't like that. However you
> have made me think that I'm coming at this from the wrong approach. I
> don't actually need the card to work in windows, so I'll do some
> googling and see if I can stop windows loading any firmware onto it.
>
> Thanks,
> Leo
>
Have a look at the output from dmesg. That will tell you what the system is
doing with hardware. Try something like
dmesg | grep -i dvb
Hope this helps,
Tim B.
--
OpenPilot - Open-source Marine Chart Plotter
Lead Developer
http://openpilot.sourceforge.net
