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#1 2010-02-14 02:54:31

lamdacore
Member
Registered: 2009-11-05
Posts: 128

Webcam Settings [SOLVED]

Hi,

I have been using the integrated webcam on my laptop without any problems with Skype (bin32-skype installed from aur on x64 Arch). However the image is very dark (looks better on windows). I can't seem to figure out a way to increase the brightness and gamma settings. Best way to do this?

Regards.

Last edited by lamdacore (2010-03-01 03:24:14)

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#2 2010-02-14 03:12:14

oGRE2080
Member
From: UKRAINE-NY
Registered: 2009-10-09
Posts: 63

Re: Webcam Settings [SOLVED]

hello, what laptop do u have ?? I don't know what is your problem, but maybe U can help me
http://bbs.archlinux.org/viewtopic.php?id=91082 thx

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#3 2010-02-14 03:22:18

JackH79
Member
From: Australia
Registered: 2009-06-18
Posts: 663
Website

Re: Webcam Settings [SOLVED]

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#4 2010-02-14 04:31:34

lamdacore
Member
Registered: 2009-11-05
Posts: 128

Re: Webcam Settings [SOLVED]

I have a custom built MSI.
@oGRE2080
I added this to the .xinitrc

[export LD_PRELOAD=/usr/lib/libv4l/v4l1compat.so]

see if it works. I am no completely sure how to help you.

@JackH79
I went through the post. I am not sure if i interpreted this right. I made a gspca.conf in /etc/modprobe.d
with the following:
options gspca autoexpo=0
gamma 4

no change on the video - still dark. Correct me if I am wrong. Also the post gives syntax accoridng to driver name. I just used gspca. Am I using the right driver name / how do i find the correct driver name?

thanks for the replies.

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#5 2010-02-14 05:16:54

JackH79
Member
From: Australia
Registered: 2009-06-18
Posts: 663
Website

Re: Webcam Settings [SOLVED]

you could go through the

dmesg

output and look for your webcam. It will also show your driver.
In my case it shows "uvcvideo: Found UVC 1.00 device Acer CrystalEye Webcam (064e:a101)

Or you can try:

lsusb

which will give you a list of connected usb devices (your built-in camera is most proabably usb)

take the ID number quoted in the middle (eg mine: 064e:a101) and google it ("linux driver 064e:a101" maybe)

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#6 2010-02-14 06:03:20

lamdacore
Member
Registered: 2009-11-05
Posts: 128

Re: Webcam Settings [SOLVED]

So I find this in dmesg.
"uvcvideo: Found UVC 1.00 device CNF7231 (04f2:b073)"

and its also listed with a green tick at "http://linux-uvc.berlios.de/".

How do I go about changing the settings and what is the driver name?

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#7 2010-02-14 06:23:27

oGRE2080
Member
From: UKRAINE-NY
Registered: 2009-10-09
Posts: 63

Re: Webcam Settings [SOLVED]

lamdacore wrote:

I have a custom built MSI.
@oGRE2080
I added this to the .xinitrc

[export LD_PRELOAD=/usr/lib/libv4l/v4l1compat.so]

it wokrs only with /usr/lib/libv4l/v4l2convert.so but I can't link it with skype %)

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#8 2010-02-14 08:38:37

siriusb
Member
From: Hungary
Registered: 2010-01-01
Posts: 422

Re: Webcam Settings [SOLVED]

Try to create a script:

#!/bin/bash
LD_PRELOAD=/usr/lib/libv4l/v4l1compat.so skype

Start skype this way.

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#9 2010-02-14 15:56:26

oGRE2080
Member
From: UKRAINE-NY
Registered: 2009-10-09
Posts: 63

Re: Webcam Settings [SOLVED]

siriusb wrote:

Try to create a script:

#!/bin/bash
LD_PRELOAD=/usr/lib/libv4l/v4l1compat.so skype

Start skype this way.

I can se my self myself mplayer tv:// -tv driver=v4l2 only from this "v4l2"
but when I'm using skype, video is not working, even preview in skype settings,but cheese works o_O

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#10 2010-03-01 01:41:59

lamdacore
Member
Registered: 2009-11-05
Posts: 128

Re: Webcam Settings [SOLVED]

So I still don't know how to change the settings using the above information.
Any ideas?

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#11 2010-03-01 02:21:07

jt512
Member
Registered: 2009-02-19
Posts: 262

Re: Webcam Settings [SOLVED]

lamdacore wrote:

So I still don't know how to change the settings using the above information.
Any ideas?

Install package 'v4l2ucp' from AUR, then

$ v4l2ucp

Jay

Last edited by jt512 (2010-03-01 02:24:23)

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#12 2010-03-01 03:24:00

lamdacore
Member
Registered: 2009-11-05
Posts: 128

Re: Webcam Settings [SOLVED]

Thanks a lot. Solved the problem.

Out of curiosity, what files does that program change? (if I want to do this manually)

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#13 2010-03-01 04:24:56

oGRE2080
Member
From: UKRAINE-NY
Registered: 2009-10-09
Posts: 63

Re: Webcam Settings [SOLVED]

JackH79 wrote:

you could go through the

Or you can try:

lsusb

which will give you a list of connected usb devices (your built-in camera is most proabably usb)

take the ID number quoted in the middle (eg mine: 064e:a101) and google it ("linux driver 064e:a101" maybe)

still no luck for me with Quanta 0408:03f0
but I can see my self in cheese, wtf with the skype (

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