Ubuntu Multimedia :: Webcam Brightness Increase ?
Mar 10, 2010
Ubuntu, in its most recent version (9.10) has stopped to support certain webcams that it previously supported with just plug-and-play simplicity. After many searches on the web, I could somehow managed to make my old webcam (Logitech QuickCam Traveler) work. Skype couldn't see it, but adding the command bash -c 'export LD_PRELOAD=/usr/lib/libv4l/v4l2convert.so; skype' to the launcher, worked the miracle.
Whatever, the image was very dark, and in a new web search I found a solution [url] As stated there, I opened the Terminal and entered:
Code:
All is OK, brightness gets up, I can finally see my face (not a great view, but I somehow got away with it) in Skype's test, but I need that change to be PERMANENT, so every time my parents open Skype (it's my parents' computer) they won't have to mess with Terminal (they're 69 and 72 years old, it's their first computer, so I CAN NOT expect them to use Terminal, they just want to open Skype and use it, as they did when they used Windows (until two weeks ago, when I finally convinced them to switch).
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Mar 3, 2010
I Install Ubuntu 9.10 and I can't control Brightness, show brightness popup (Fn+F5F6) but screen brightness don't work, I install NVIDIA Driver Linux-x86_64 version 190.53, modiffed xorg.conf.
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Apr 26, 2010
On aMSN the webcam works,but it's very very dark, and i can't move the adjusment handlers for some reason. Also, i tried several methods to increase the gamma, but it just won't work...nothing changes.how can i proceed?
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Dec 26, 2010
i have a desktop computer with a fresh install of ubuntu 9.1. the display is too dark to see pictures and several websites as well. is there a gui tool for color and brightness correction, or do i need to do something special?
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Aug 6, 2010
I have a ViewSonic V1912Wb-4-- It recently got broken. I got to it repaired. However I cant force the brightness or the contrast of the monitor to increase or decrease, it is just stuck!
In my WinXP I can adjust this with software-- however I cant change anything on my slackware 12.2!
Do you think I need to install softwares like Argyll CMS?
I am using the default graphics drivers. I cant find anything for my built in graphics card of my Asus motherboard P5S-MX SE.
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Jan 17, 2010
EDIT: I finally figured out how to do it - xbacklight -dec 10 lowers, xbacklight +inc 10 increaces. I'll use ubuntu tweak to get the shortcuts. I got my self a new lappy, and Acer Aspire One 751h-1948. After that, I installed Ubuntu Karmic on that, while leaving a 20GB XP partition. I configured it's Intel GMA500 Poulsbo video card, so now I can use it at the native 1366x768 res. Most of my fn keys work, other than one very important one, and here lies my problem; The brightness keys dont work(fn+left/right arrow). I've searched the net for a long time, but I still can't find a solution that works with karmic - perhaps i should downgrade?
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Apr 23, 2011
I want to know how can I increase the brightness of my LCD screen. I have a toshiba sattelite A500-1f4 laptop with nvidia geforce gt 330m video card. I work on centos 5.6 x86-64 system.
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Jul 5, 2011
i have sony viao vgn-fz11 Can someone please help ,im new user to ubuntu been trying to get webcam working properly at the moment its upside down and does not work in skype at all just get black screen does this look correct? do i have the right driver?i will try and give as much information as i can.
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Aug 3, 2010
I have a problem making work a webcam. At the begining, after the instalation of 10.04 in a new laptop, the webcam did not work but with a lsusb I see that the webcam was Webcam 5986:0241 acer. I was not able to config neither use the webcam with any application. After lots of test and forums reading I could not do my webcam to work, and now when I do a lsusb my webcam does not appear.
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Feb 9, 2010
I'd been trying to get into Linux before I bought it so I figured that I would try to get it onto my new Mac so that I could use it wherever I am. I decided to try Debian Lenny 5.0.3 a whirl after reading about all the different distros available. I've successfully installed it and I can get to it with rEFIt, and I have quite a few things working such as the video drivers and wifi. However, I've had trouble getting it to a level where it'd be usable away from home. Here are the main problems I'm worried about:
1) I installed pommed but I still can't use the brightness keys to change the screen brightness. I'm not sure if there's some other workaround for this?
2) I tried some recommended power management packages (gnome-power-manager) but it doesn't seem to be accessible or functional right now. I don't have any way to control it or get to it that is obvious to me. Is an icon or anything supposed to appear on the task bar when you install or what? Getting some sort of power management on here is important because it gets really lousy battery life otherwise.
3) Being a Macbook, there's no right-click button. Multitouch would be really nice (two-finger scrolling!) but I'd be OK with ANY way to right-click with the touchpad. I have a wireless USB keyboard/mouse combo that works at home at least . . . right out of the box too!
4) I've seen some packages called the Mactel PPA, but they are made for Ubuntu. Since Debian and Ubuntu are so similar, is there any way to make those work on Lenny? I think that if I got those to work, I could fix some of the problems above. Or do I have to install Ubuntu?
5) I just noticed that the sound doesn't seem to work yet either.
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Mar 22, 2011
I'm having a really strange problem, when I turn on openSUSE, the brightness is fine.owever, as soon as I log in the brightness gets obnoxiously low. I have a MacBook Pro 7.1 with openSUSE 11.4 KDE
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Dec 19, 2010
Ubuntu 10.04.1
Nvidia gpu ( Asus GeForce GTS 450 Series graphic card)
DVI connection to monitor (Dell 2405)
Using a VGA connection I can use the buttons on the monitor to control both contrast and brightness. Using dvi there is no control(no contrast control and the brightness button changes the numbers but not the actual brightness!) I cannot find the app that controls the Nvidia GPU
(it should exist as I found it on Zenwalk).
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Jan 11, 2011
I have a very old monitor that shows too dark colours I would like to increase the brightness via software, in another distro I used gxvattr but in ubuntu doesn't work, I also tried gdcccontrol but my monitor isn't supported. What should I try ?
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Jan 23, 2011
I have been just pretty much having fun with Ubuntu and a couple other distros for a couple years and have not yet ran into a problem like this. I'm pretty good in a command line environment although I end up googling syntax a lot b/c of that wonderful memory I have! Anyways..
I am running an older machine: P4P800 ASUS Mobo, P4 2 Ghz, 3G RAM and an ATI Radeon 9000.OS: Ubuntu 10.10 Maverick Meerkat Issues: Seems that anything that Compiz has to render the brightness is really low. CairoDock (w/ OpenGL) does not render like it does on other machines that I have, looks like garbage. I've come to the conclusion that I need to get a better video driver (Hope I'm correct here otherwise I've been going the wrong direction for awhile now).
Things I've tried through research around the net: I've attempted installing fglrx(command line style) from several tutorials I've found here and there. Most of them for older versions of Ubuntu and if I'm remembering right there have been a few significant changes lately, which may be causing my issues? Of course I've tried the easy ways: Installed all fglrx/ati/radeon related packages in Synaptics Package Manager
Checked System > Admin. > Additional Drivers before and after package installations
Ati Website - the drivers that they have are for XFree86. I don't think they can run on XOrg - it's a completely different setup? Again, I don't have a great understanding on how the back end of all this works, so bear with em.
I ran: echo options radeon modeset=0 > /etc/modprobe.d/radeon-kms.conf To disable KMS.
Rebooted - Video was much worse I then ran: echo options radeon modeset=1 > /etc/modprobe.d/radeon-kms.conf To re-enable KMS Rebooted again. Everything ran fine but I didn't have my Cairo Dock > which I can deal with, that's not why I'm posting.. Well, that's a good chunk of it - there's more but I don't remember most of it as I've been working at this on and off for weeks. Again, a lot of this was tried upon researching anything and everything I could find on the net - so some of it might sound ridiculous, I was just trying anything that would work!!
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Mar 16, 2011
I know there should be some way to change brightness and contrast in Totem, but I dont think I can find it there.
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Jan 27, 2010
since I installed ubuntu 9.10, my video files, specially .avi, are showing up on every player with a high contrast or too much brightness... So i have to go t vlc and adjust the image... =/ I'd like to know how can I make the video files running normally as I used to do at 8.10...
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May 4, 2010
With my Kubuntu Hardy install there are plenty of settings I can change in Kaffeine but with Ubuntu Lucid I cannot adjust the brightness or add/remove items on the toolbars.
Is there some other way to change these settings ?
Kaffeine is excellent for watching and recording Dvb/T television (multiple channels etc).
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Aug 26, 2015
When I logout out of gnome, the brightness reaches maximum level. I've tried adding a script to adjust the directory "/sys/class/backlight/intel_ backlight/ brightness" to the rc.local file. I'm not sure if it has to do with my video card but it certainly could be the case since I'm using an experimental package for the Intel graphics card.
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Jun 5, 2011
I have 6 GB ram, and an nVidia GF 9100 integrated. I'm doing some graphics with a large UV texture map (7200*7200!) and its running out of vram. I've tried editing /etc/X11/xorg.conf :: devices :: VideoRam 2000000 , but no luck.How can I raise the vram from the standard 250 MB to 2GB ?
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Aug 16, 2010
I've seen several posts about adjusting the brightness on webcams within Ubuntu going through /sys/module/... /parameters/ however, I need directions for the Microsoft LifeCam Cinema specifically. It runs well with Skype but during the day the image is way too bright so I look like a ghost on cam. I'm running with UBUNTU 10.04 LTS *Lucid Lynx* on a DELL D620 laptop.
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Feb 22, 2011
Im using ubuntu 10.04 I would like to know if their is a program that can change the format, contrast, and brightness of a large bulk group of pictures instead of doing it one by one?
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Jan 12, 2010
I can't increase my screen resolution to higher than 800x600. In Windows I have a 1024x768 resolution. This is my xorg.conf file
Code:
# xorg.conf (X.Org X Window System server configuration file)
#
# This file was generated by dexconf, the Debian X Configuration tool, using
# values from the debconf database.
[code]....
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Jul 26, 2010
How can I increase the resolutions of my VGA Port?As you can see in the screenshot, the maximum resolution that Ubuntu 10.04 detect it's 1360x768 but in other OS I can use 1920x1080 for example.
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Apr 24, 2010
I've got: Intel Corporation Mobile 4 Series Chipset Integrated Graphics Controller as vga screen, and I would like to be able to change brightness and contrast.
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Jan 19, 2010
Is there anything that can be done to increase video streaming performance?The general impression I got is that it's mainly an adobe problem and not much can be done, though currently streaming is nearly unwatchable. When I switch from full screen to normal size many of the players freeze, ..... HD is unwatchable etc.
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Jun 23, 2010
I have been arguing with my acer aspire one laptop since I bought it in terms of the screen resolution and have never been able to solve the problem, although I seem to be getting close. I just updated to 10.04 (the netbook remix).I have been following the instructions for how to fix it here. The result was this:
Code:
liz@Pippin:~$ cvt 1366 768
# 1368x768 59.88 Hz (CVT) hsync: 47.79 kHz; pclk: 85.25 MHz
[code]....
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Jul 20, 2010
how to increase the volume of ogg and mp3 files using ffmpeg. Some of the podcasts that I listen to are not loud enough, and I have my media player set to the highest volume.
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May 11, 2011
When I watch movies on Ubuntu I noticed that quality of reproduction is not good as in Windows. All movies seems to have some sort of contrast problem which I don't know how to fix. This problem is not present in Windows (XP/7) and stand-alone DVD players play them also correctly.
Here are images (AVI, DivX format)
Windows version: http://i52.tinypic.com/125hlis.png
Linux version: http://i56.tinypic.com/tz53t.png
Also here is MKV format which is noticeably even sharper in Windows:
Windows version: http://i53.tinypic.com/2lmqxqe.png
Linux version: http://i53.tinypic.com/15gfmlt.png
Note: I didn't wanted to include them in post since they are quite big and I didn't want to do JPG compress since they might lose quality. Try not to resize them.
On Ubuntu I installed some 'extra' codecs (might be proprietary) via Software center. I use standard movie player that comes with 10.10, but for MKV I use VLC since mkv don't run in standard movie player. On Windows I use k-lite codec pack and GOM player. My guess is that Windows solve those sharpness and contrast issues by using some playback filters (possibly contained in k-lite codec pack) that are unavailable in Ubuntu. I installed proprietary video driver for ATI RADEON 2600.
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May 24, 2011
I have an EeePC 1005HA with Intel 945G chipset and graphics. I've got a 21" no-name touchscreen attached to the laptop with the intention of hiding the laptop away behind it and simply using the tactile widescreen with virtual keyboard (onboard). By the way, the Touch screen is working great OOTB in Ub 11.04, although will have to tweak some more to get multi-touch working.On it's own the netbook runs 1024x600 (16:9) automatically. As soon as I plug in the larger monitor and mirror the images it auto-defaults both to 800x600 60hz and I have no options to select a higher res. I want to be able to run the large screen in something like 1024x600 or better, as long as its 16:9. At the moment everything is stretched out on the larger screen and on the netbook I have a 800x600 with black margins left & right.
Can't seem to work it out. The Monitor Config doesn't give me any higher options than 800x600 when mirrored. Below is the output of xrandr, if it's any help. Also my xorg.conf file is practically empty.
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Dec 14, 2010
Sometimes while watching ..... vids in firefox I often want to adjust the brightness/contrast/saturation levels.I didn't see any addons for the purpose.Is there a way to do this ?I have visited web sites with embedded flash players which includes these controls.
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