Re: [Hampshire] Ubuntu 9.10, dvb and dual boot

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Author: Leo
Date:  
To: Hampshire LUG Discussion List
Subject: Re: [Hampshire] Ubuntu 9.10, dvb and dual boot
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