Re: Intermittent Logitech C510 problems (with kernel OOPSes)

[Laurent Pinchart <laurent.pinchart@ideasonboard.com>]

Hi Artem,

On Tuesday 07 October 2014 11:48:48 Artem S. Tashkinov wrote:
> Hi,
> 
> I posted a bug report almost a year ago and since it's got zero
> attention so far I'm writing to this mailing list.

I've CC'ed the linux-media mailing list, as it wasn't in the recipients list 
of your e-mail.

> My problem is that video capturing doesn't work on Logitech C510 webcam
> in some cases.
> 
> Mind that audio input always works.
> 
> Video capturing is guaranteed not to work after I reboot from Windows 7.
> 
> In rare cases it doesn't work when I cold boot straight into Linux.
> 
> When I try to capture - either there's no signal and capturing fails to
> initiate or I get a black screen (a LED on the webcam doesn't turn on in
> both cases).
> 
> If I rmmod ehci_hcd and then modprobe ehci_hcd and uvcvideo, then
> everything starts working again.
> 
> https://bugzilla.kernel.org/show_bug.cgi?id=67551

The kernel log warning message is caused by an issue I'm aware of. I'll try to 
fix it ASAP, but due to attending conferences next week I might get a bit 
delayed.

-- 
Regards,

Laurent Pinchart