[Bug 549018] Re: [Lucid Lynx] No or green picture from recognized webcams

stho121 549018 at bugs.launchpad.net
Mon Jul 12 21:44:01 UTC 2010


I still had this problem in kernel 2.6.32-23  on an i686 with Nvidia
video card.  None of the above problems resolved the issue included
trying the upstream kernel.  However, the camera worked on 10.04 with
the same kernel on my old laptop.  Looking around people had very
similar problems when connecting cameras through a usb hub, suggesting
it was a usb problem.  Resetting the ehci_hcd driver resolved the issue:

cd /sys/bus/pci/drivers/ehci_hcd/
*** For me prints: 0000:00:1a.0  0000:00:1d.0  bind  module  new_id  remove_id  uevent  unbind ***
sudo su
echo -n 0000:00:1a.0 > unbind
echo -n 0000:00:1d.0 > unbind

echo -n 0000:00:1a.0 > bind
echo -n 0000:00:1d.0 > bind

[Lucid Lynx] No or green picture from recognized webcams
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