[Bug 622168] Re: webcam "device initialization failed" in lucid (needs high-speed USB 2.0 port) but has worked in past on lucid

Kim Tyler 622168 at bugs.launchpad.net
Tue Sep 14 02:29:16 UTC 2010


There seems to be no consistent way of making the webcam work repeatedly
across reboots.  Sometimes it connects at 480Mbps, and works correctly
at all resolutions, sometimes at 12Mbps and only works correctly at low
resolutions, (higher resolutions get a lot of green lines splattered
across video, and is unstable), sometimes connects at 12Mbps with no
associated /dev/videox entry, (I also have tv card for the other
/dev/videox entry), and sometimes fails altogether during boot.

If it doesn't work, it is unlikely to work unless I add/delete packages
(eg update-manager updates) or I fiddle with /etc/default/irqbalance
parameters.  Once it is working, it is unlikely to remain working across
reboots, either shutdown/startup or reboot.

Given that it worked perfectly in karmic, it would hint at something in
boot procedure.

Maverick is more likely to produce working webcam, but it has worked
properly under lucid. (not as likely though)

-- 
webcam "device initialization failed" in lucid (needs high-speed USB 2.0 port) but has worked in past on lucid
https://bugs.launchpad.net/bugs/622168
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