Ubuntu :: Changing Brightness Of A Selected Screen Area

Apr 9, 2010

if there is a way of selecting a specific area of the screen and increase brightness? The thing is that I had to reduce my monitor brightness and contrast, due to recurring headaches. The new configuration is fine for most applications, but videos on web pages are too dark. I have created a script that allows me to change nvidia settings quickly, but when switching to the brighter setup my eyes hurt even if it is just for a moment. So I would like to be able to brighten a specific area of the screen.

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Ubuntu :: Screen Capture Of A Selected Area Hot Key

May 7, 2010

On my Mac, when I press F2, I am able to take a screen shot of a selected area. Is it possible to assign a hot key to do the same thing on my Ubuntu 10.04 PC?

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Ubuntu :: Screen Brightness Randomly Changing?

Jan 3, 2011

Sometimes, out of the blue, my screen will suddenly change brightness. And no, not the gnome power manager dimming the screen when idle, I'm talking about it suddenly going from dimmest to brightest when I haven't even touched the screen brightness buttons in the last few minutes.

what package would I file this bug against)? This is Maverick on a thinkpad T60, and I can provide any other information that people find relevant. On what may be a related note, it seems that one push of the screen brightness up or down buttons causes two increments in brightness.

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Ubuntu Multimedia :: Can't Control Brightness / Show Brightness Popup / Screen Brightness Don't Work

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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Debian :: Take A Screenshot Of A Selected Area?

Feb 20, 2011

I use Debian Squeeze and I would like to ask if someone knows a program to take a screenshot of a selected area of my screen. I already know imageshack and scrot, but they don't do what I need because I need to know previously coordinates and the dimension of the selected area. I need a program that I could select a rectangle with my mouse to take a screenshot of that part.I don't know if I'm clear what I'm trying to say is that I need something like this google-chrome plugin[URL]

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Debian Hardware :: Getting Lenny Working On Macbook / Can't Use Brightness Keys To Change Screen Brightness?

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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Ubuntu :: Changing Order Of Indicators In Notification Area?

May 21, 2011

Does anyone know how to change the order of the icons in the notification area?

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Ubuntu :: Brightness Not Changing On Sony Vaio Cw Laptop?

Mar 21, 2010

I am having problems with the brightness control on my sony vaio laptop, at virst when i upgraded the driver for the VGA card the whole screen went blank, I had to port a bin file from windows and write my own EDID file to get it to work (nVidia GT 230M), but I am having problems with the brightness, although ubuntu does read the input from the keys (FN+...), the brightness refuses to change, adding the brightness applet to the taskbar does not work either. I really need to be able to change my brightness because the battery usage is off the charts.

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Ubuntu :: Changing Brightness / Plugging In USB Device - No Notification

Jun 18, 2010

Changing the brightness and keyboard brightness does not give a notification, though the brightness changes. In addition, ejecting a cd, plugging in a usb device, and seeking/playing music gives no notification (though Rhythmbox tells me what track I've skipped to/played). Again, the cd does eject, the usb device can be accessed, etc. I'm not sure if this last one is a problem, but every notification except for the volume one appears about 80 pixels down from the top panel. This 80 pixels below the panel is only ever occupied by the volume notification. Ubuntu 10.04, gnome-power-manager 2.30.0 ubuntu1, notify-osd 0.9.29-0ubuntu2. I'm using a Dell Studio 1555 notebook.

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Debian Hardware :: Changing Display Brightness Causes Laptop To Restart

Jul 15, 2015

Today I installed debian-8.1.0-amd64 on my older Samsung Laptop (Model r560). The installation without a desktop environment worked fine and the system booted without any problems into the virtual console. There was however one problem: when I was away from keyboard for some time, the screen turned black and when I came back and hit a button to wake the system up, the laptop immediately restarted. Later I installed the gnome desktop environment. This also worked fine.

But whenever I try to change the screen brightness in the gnome-shell, my system immediately restarts and successive attempts to boot debian fail. Some time later and after countless attempts to boot debian, it finally does boot again. By "debian fails to boot" i mean the following: The initial ram disk is loaded and fschk runs. Usually the system suddenly reboots at this point. SOmetimes, however, the video mode changes, the console font is changed and some services are getting started, but then at some point the system also restarts. I don't reach the point where a login prompt appears, or the graphical environment starts up.

Assuming, it has something to do with buggy acpi implementation of my hardware, I tried the following:

I tried to disable acpi completely by using the kernel parameter "acpi=off". This doesn't work and causes the kernel to hang

I tried to start debian without using a GUI using the single parameter. This also didn't work.

acpi_backlight=vendor also did not fix the problem.

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General :: Script To Delete Selected BackupFiles And Restore Selected Backup File?

Jul 18, 2010

i am new to linux and i nid a bash script to Delete selected backup files and also restore selected backup file to a user define directory.

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Networking :: Granting Selected User Access To Selected Network Interface?

Oct 3, 2009

I have a multi-user machine with several network interfaces (Ethernet, if that matters). I wish to grant selected users, or groups, full access to selected network interfaces (including ability to adjust IP address and to bind to low ports, but *only* on those interfaces). It is important to me that an user/group does not such full control over other interfaces. Granting partial, or temporary, root permissions is OK; it's a friendly environment.How do I go about it?System: Linux 2.6.recent; usual Debian setup (can be adjusted if needed).

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Ubuntu :: Cannot Adjust Screen Brightness V 10.04

Jun 3, 2010

I cannot adjust the screen brightness in the power management menu. I can access the window and move the scroll bar, but there is no change.

I am on v 10.04 32bit , a Benq joybook s35.

It was working just fine on the previous version of ubuntu.

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Ubuntu :: Can't Adjust Screen Brightness

Jun 23, 2011

My computer (Samsung R580 N330M)seems doesnot adjust brightness both power manager and configuration file in /proc, I tried NVIDIA setting and it works,but I think it changes the color,not LCD. is it caused by driver problems?

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Ubuntu :: Screen Brightness Twitching And Freaking Out?

Jan 22, 2010

My laptop with Ubuntu 9.10 just randomly while adjusting the brightness using the shortcut key commands on my laptop the brightness started to glitch between two brightness levels. If I don't use the shortcut keys it doesn't glitch unless I shut the screen or restart the computer. So I've had to put up with this for the past couple months now and I think that it might even drive me to reinstall but then I lose all my data.

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Ubuntu :: Manually Set The Default Screen Brightness?

Dec 4, 2010

In which configuration files can I manually set the default screen brightness?

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Ubuntu / Apple :: Screen Brightness Permanently 100%?

May 11, 2011

I originally installed Maverick on my Macbook 5.1 using rEFIt to dual boot. For some reason, after installing Compiz my screen brightness functionality stopped working. It was permanently 100%. I thought that upgrading to Natty might work, but no luck. So far I've tried changing the brightness manually in terminal and in power-management, editing the grub file and also reinstalling compiz, all to no avail. Trying to alter brightness using the fn keys displays the brightness panel in the top right, and it decreases in value as it should, but the screen stays bright. The brightness settings work fine when I boot to Mac.

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Ubuntu :: Screen Brightness Doesn't Change

Jul 16, 2011

I installed Ubuntu Natty on an Ideapad Z570. The screen brightness seems to be stuck. The keys that control brightness don't work and I can't find any option anywhere to change it.

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Ubuntu :: Screen Brightness Changes Arbitrarily (lucid)?

Feb 1, 2011

on my fairly new ubuntu install (10.04.1 LTS) on a laptop, the screen brightness changes seemingly at random, i.e. while I do other things like surf the web. Often, the brightness will decrease some (it does not fade to black as reported by others with similar problems) and come back a few seconds later

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Fedora :: Text String Come Up On Screen When Hibernate Selected

Feb 1, 2011

When I press the power button and select 'Hibernate' I get a text string come up on the screen. The last characters are "fail: -6". There is more to it but it's there and gone so quickly I haven't written the rest of it down yet. What this might be?

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Ubuntu :: Notification Area Icons Pushed Off Screen?

Aug 18, 2011

I am using Ubuntu 11.04 and after an update 2 days ago, I have noticed that the icons in the notification area get pushed off screen. For example, if I open up a site in Firefox with a long title, the icons will be pushed away by the title and will not appear in the correct areas until I logout and back in. Also, if I use gnome-panel everything seems to be well but when the gnome panel is not displayed then the same problem is there.

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Ubuntu :: Software Method To Reduce Screen Brightness?

Aug 10, 2010

I have a netbook with LED backlight, but even the lowest brightness of the screen is still very bright and eye straining in a dark environment. On Windows and MacOSX there are simple tools that put a borderless more or less transparent black window in front of everything on the screen to reduce brightness even further.Are there such tools for Ubuntu or other means of achieving the same result?

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Ubuntu :: Dim Screen - Cannot Change Brightness Settings On Netbook

Nov 18, 2010

I bought a Asus eeepc a few days ago which I really like, with the exception of one thing - windows 7 starter. I like Windows 7, but starter is just bad. I also really like ubuntu, so I've decided to put it on my netbook. I download the netbook edition from the site, put it on a usb drive, and than tested it out - well, my screen is dim, very dim. Changing the brightness setting on the tool bar up top doesn't change anything, and using the function keys does change it, but still keeps it very dim.

I've tried restarting my computer, same thing, I've tried messing around with settings in the battery options, nothing... I really don't want to install it if its going to be this dark, I can see things, but its not very pleasant to use. I'm starting to consider that its the problem with the file I downloaded. Theres nothing wrong with my netbook, everything worked perfectly fine in Windows 7. I use the full version of ubuntu 10.04 on my other laptop which works perfectly fine, I'm not sure why this version is acting so weird on my netbook.

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Fedora :: How To Change Screen Brightness?

Sep 18, 2009

I'm having trouble locating a way to adjust the screen brightness on fc10... It is only possible to use the monitor's control for now.Yeah my monitor make an annoying whining noise unless you turn it on 100% brightness, but that hurts my eyes.It is so crazy that they didn't put a brightness control in! ( or rather they destroyed working ones of year past, Why? )

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Fedora :: Screen Brightness Resetting Itself

May 23, 2010

My issue is like this: I have a laptop (dell vostro 1400, NVidia 8400M video card) running Fedora 12 up to date. My desktop is KDE 4. I usually run the laptop connected to the power outlet, so my power profile is set to "performance". This power profile sets the screen brightness to the maximum. However, when I'm in the dark, I want to lower the screen brightness. The shortcut keys work, and the screen brightness is lowered. However, for some reason, after about 30 seconds it resets itself to the highest brightness setting. No matter how I set the brightness, it will always reset itself. Any ideas what can i do to correct this?

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Fedora :: Adjust Screen Brightness

Mar 13, 2011

Running F14 on Dell Studio 14 with LCD screen and US keyboard selected. After initial power on the keyboard selection of "Windows Key" + F4 will dim the screen and the "Windows Key" + F5 will brighten the screen. When being used, either combination will also show a meter on the screen to display the adjustment of the brightness. When the lid is closed the computer is set to suspend by default. After the computer is brought back from suspend the keyboard short cuts no longer control the brightness and the meter does not appear on the screen. I have not found any other way to control the brightness and I have to restart to get the keyboard short cuts to work again.

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Red Hat / Fedora :: Adjusting Screen Brightness

Feb 19, 2011

After installing Fedora 14, I can't seem to make my screen brightness go above the absolute minimum. I've tried editing /proc/acpi/video/VGA/LCD/brightness to change the current setting from 20 to 100, but I can't save it, even when logged in as su, it returns "Invalid Argument" when I try to enter the filename of where to save. What do I do?

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General :: Any Way To Adjust Screen Brightness

Nov 12, 2010

I have a low end 7" CnMBook running modified Debian OS. Is there any way to adjust the screen brightness, if possible by adding a Fn command Up and Down?

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Fedora :: Restrict The Tablet Area To Screen 0?

Jul 10, 2011

I have a dual head setup on Fedora 15 with nvidia drivers: two separate X screens (no xinerama, no twin view). Screen 1 is at right of Screen 0. My Wacom tablet is recognized by the xorg server and the whole tablet area is mapped to the whole area of Screen 0 which is exactly what i want. However when the stylus goes beyond the right edge of the screen, the tablet area gets mapped to Screen 1 and there is no way to come back to Screen 0. What i would like is to restrict the tablet to Screen 0 all the time. I used to do this in Fedora 13 by adding a file named



in which there was a line


Option "ScreenNo" "0"

It doesn't work anymore. The option seems to be ignored by xorg since it doesn't appear anymore in



How can i restrict the tablet area to Screen 0?

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Ubuntu :: [lucid] Can't Adjust Screen Brightness Using Function Keys?

May 3, 2010

I have just upgraded to xubuntu 10.04 and although some function keys are working (like volume control), the screen brightness function keys aren't (the screen brightness is at top level and can't be reduced)Notes:I am using a Compaq 610 laptopThe brightness keys are working on Ubuntu 10.04 (live session)How can I fix this?, and at least is there any other way to adjust screen brightness?

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