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Re: unexpected webcam side effect



pe, 2007-07-06 kello 08:43 -0400, Tom Horsley kirjoitti:

> Here's some behavior I've never seen before:
> 
> https://bugzilla.redhat.com/bugzilla/show_bug.cgi?id=247224
> 
> My motherboard's CK804 audio system utterly vanishes
> if I have the webcam plugged in at boot time :-).
> 
> Doesn't have anything to do with the highly alpha uvcvideo
> driver I was playing with because I found it fails
> even if the uvcvideo driver isn't installed. Apparently
> it is something about the USB microphone component of
> the webcam that gets linux confused at boot time.
> 
> Anyone ever seen a USB device hide a non-USB device like
> this?
> 
Hi Tom,

someone has. I've already commented your bugzilla report, but in
addition I'd like to mention that in April I wrote to Rhythmbox-devel
mailing list complaining about erratic Rhythmbox behaviour. 

See
http://mail.gnome.org/archives/rhythmbox-devel/2007-April/msg00021.html

I later found out that the problem was sound card non-detection if I had
my USB headphones plugged in at boot. The problem was already there in
FC6.
Now that in F7 System->Administration is organized a bit differently
I've noted that at least as ordinary user I cannot get my motherboard
sound card (NVidia CK8S) detected while F7 is running. The only remedy I
know is to boot with USB headphones unplugged - and plug them in only
after F7 is up and running.

Regards

Antti


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