Re: Logitech QuickCam USB detected by Linux, but not user space applications

From: Paul Menzel
Date: Thu Nov 22 2018 - 16:43:15 EST


Dear Hans,


Am 22.11.18 um 13:43 schrieb Hans Verkuil:

On 11/16/2018 03:39 PM, Paul Menzel wrote:

On 11/15/18 12:38, Mauro Carvalho Chehab wrote:
Em Thu, 15 Nov 2018 11:42:32 +0100 Paul Menzel escreveu:

I tried to get a Logitech QuickCam USB camera working, but unfortunately, it is
not detected by user space (Cheese, MPlayer).

Could you please try it with Camorama?

https://github.com/alessio/camorama

Thank you for the suggestion. At first, I only saw a black image, but changing the
resolution made it work. See the status below.

1. does *not* work

a) 160x120
b) 176x144

2. works

a) 320x240
b) 352x288

Try this patch:

https://patchwork.linuxtv.org/patch/53043/

It probably fixes the same problem you are experiencing.

It indeed does. I cherry picked it to Linusâ master branch, and it fixed the problem.

Tested-by: Paul Menzel <pmenzel@xxxxxxxxxxxxx> (Logitech QuickCam 046d:092e)

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Kind regards,

Paul