Questions related to screen brightness.

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1
vote
0answers
1k views

Screen brightness stops working after standby? [closed]

So, I just bought a new laptop yesterday (Toshiba Portege R835-P70) with an Intel graphics accelerator and installed Xubuntu 11.04. Everything works fine except after waking from standby. The screen ...
2
votes
2answers
1k views

Brighness and sound problems on an Acer Aspire 4750G

I am using ASPIRE 4750G, with processor of Intel Core i5. Currently I'm using Ubuntu 11.04 - the Natty Narwhal. I would really need some guide how to fix these problems: I can't hear any sound after ...
3
votes
2answers
875 views

how can I force the screen to stay at maximum brightness in a laptop running on battery?

I have a laptop with Intel integrated drivers running on battery and I would like to force the screen to remain in maximum brightness even when it's idle, for example, when reading a document without ...
28
votes
9answers
50k views

Unable to change brightness in a Lenovo laptop

Brightness adjustment keys <Fn + ⇑/⇓> have no effect (although they are recognized by the environment), and I can't change the brightness using GUI tools as well. This seems like a problem in ...
20
votes
7answers
21k views

How can I change brightness through terminal

Now I can change it by Fn+ arrow right but now I need to do it via my shell script
1
vote
2answers
656 views

Display Brightness Scaling is Incorrect on a VAIO CW

My display brightness adjustment is off by a factor of 10, i.e. it's brightest at 10% instead of at 100%, and the difference between 0% and 1% is a little too high. Any way to fix either of these ...
5
votes
2answers
1k views

How can I change the percent of screen brightness that changes every time I press the shortcut?

When I press Fn+F6 the change in brightness is too big. How can I make it move less than it does now? (Let's say, half that, for example.) (11.04/Gnome. I'm on proprietary nvidia drivers.) EDIT: I ...
5
votes
3answers
7k views

Laptop Brightness Problem on Toshiba Portege R705-P35

Basic Specs: Toshiba Portege R705-P35 13.1" screen Intel HD Graphics 4 GB RAM, Core i3 2.4 GHz Dual Boot Ubuntu 11.04 and Windows 7 (using grub bootloader) Basically, Ubuntu recognizes me ...
3
votes
0answers
905 views

HP DV6 2011 Brightness Keys Do Not Work [closed]

I've searched around and no solutions seem to work that worked for older models. Not sure what to do next. I'm unable to change my brightness with the keys on the keyboard. I can however use the ...
17
votes
4answers
8k views

Is there an alternative to Redshift and F.lux which only dims the screen?

I want one where it reduces the screen's brightness, either by time or on demand (I don't mind). I have onboard Intel graphics. I don't want it to be like Redshift where it changes the screen's hue.
4
votes
2answers
2k views

Is there a way to set the brightness of my desktop PC using key shortcuts?

I don't really know what relevant information to post here... I'm using Ubuntu 11.04 with unity enabled using free drivers for the Nvidia card FX-5200 256MB (private drivers don't work). I'm using ...
19
votes
3answers
2k views

Stop an insolent narwhal from “correcting” monitor brightness?

I want total absolute control over the brightness of my laptop's screen. I want Natty to fear my wrath should it dare to presume my desire. Natty's light adjusting minions should quake in terror ...
2
votes
2answers
4k views

Adjusting brightness on Dell Vostro 3500 won't work

On a fresh install of Ubuntu 11.04, running Unity, I can't adjust the brightness via Fn+Up/Down. The brightness panel will show, and increase/decrease accordingly, but the actual brightness never ...
2
votes
1answer
6k views

Samsung netbook N150Plus screen brightness not working

I have a Samsung netbook N150Plus (mod# NP-N150-JP02UK) on which I have just installed 11.04 but although the function key works for the screen brightness and brings up the brightness +/- animation, ...
6
votes
2answers
362 views

Diagnose brightness control [closed]

Brightness control on my laptop does not work, how can I diagnose if it's unsupported, or a bug? And if it is a bug, what do I include in the bug report? UPDATE Thank you for all the responses, ...
7
votes
1answer
8k views

How to change the shortcut to adjust brightness?

I want to make my own shortcut to increase or decrease brightness. I don't like the default shortcut of my HP laptop (Fn + F7 to decrease and Fn + F8 to increase). Is it possible?
1
vote
1answer
3k views

How to get Compaq Presario CQ62 brightness keys to work?

I've tried the brightness keys for my laptop in both Maverick and Natty and they don't work in either distribution. The key seems to be taken as a shortcut somewhere because it won't allow me to ...
0
votes
1answer
1k views

Thinkpad W510 with default graphics drivers shows weird brightness issues

Hey guys, I am currently running 10.10 - 32 bit on a new Thinkpad W510 with nVidia Quadro FX 880M graphics card. I am running with the default graphics drivers that installed with ubuntu install. My ...
2
votes
0answers
322 views

Screen dimmed upon wake after standby [closed]

Sometimes upon resuming from standby I find my screen brightness dimmed to the lowest setting, even though the indicator says it's where I left it. If I use my brightness function keys I get the ...
0
votes
2answers
628 views

General Problem: No Sound, can't reduce Brightness. lspci attached

I've installed Ubuntu Lucid in my lappy (Compaq CQ42 173TU) before with Wubi, the sound and brightness problems were still there. I thought it was a problem due to installing through Wubi. So I ...
2
votes
2answers
3k views

How to handle brightness trouble on dell inspiron i14R-2265?

Recently I've installed Ubuntu 10.10 32-bit on my Dell Inspiron i14r-2265, but it looks like brightness control is not working. I can change it "programmatically" (FN + brightness key), though actual ...
2
votes
3answers
3k views

Can't change brightness on Packard Bell LM86

I got a Packard Bell EasyNote LM86 and the problem is I cannot set the brightness. I have tried with both the hotkeys which is Fn and either F11 to turn down and F12 to turn up. I have also tried ...
5
votes
4answers
4k views

Changing brightness on a Sony Vaio laptop

I just installed Ubuntu 10.10 on a Sony Vaio laptop. The brightness functions keys don't change the brightness. When I try to change the brightness I can see the levels going up and down in the ...
23
votes
4answers
4k views

Use webcam to sense lighting condition and adjust screen brightness

Is there a way to have my webcam sense lighting conditions and adjust screen brightness accordingly?
5
votes
3answers
7k views

Screen brightness not changing on Acer 5742 notebook

Screen brightness is not changing on my ACER 5742 notebook. I have Ubuntu 10.10 installed inside Windows 7 OS. Hotkeys are used for changing brightness. Though, a bar displaying brightness level ...
3
votes
1answer
1k views

How to get back the brightness-notification when changing brightness via hotkeys?

Some Ubuntu-versions ago, there was a Popup that showed up while changing the brightness on my Asus V6V with FN+Key. It has been gone since (I guess) 9.04. When changing the Audio-Volume, I still have ...
1
vote
2answers
3k views

Brightness control not working on HP Pavilion dm3t (Intel GMA 4500MHD)

I picked up an hp dm3t laptop with intel HD graphics and installed ubuntu 10.10 64 bit on it. It works great -- the only problem is that the brightness controls on the keyboard don't work. The ...
7
votes
1answer
9k views

How to stop gnome-power-manager from changing the global backlight setting?

After installing Ubuntu on my ThinkPad T510, the GDM screen and GNOME session would always start at 100% brightness. I quickly found out, that this can be controlled via gnome-power-preferences, but ...
5
votes
3answers
534 views

How can I adjust the time that automatically reduces the brightness of screen?

At the moment it uses just a few seconds of inactivity after that ubuntu reduces the brightness of my screen. Where do i find the option to increase this value?
2
votes
5answers
3k views

Dell Inspiron n5010 Brightness Issue

I have recently installed Ubuntu 10.10 on my Dell Inspiron n5010 but screen brightness is not working, there is no effect of pressing fn+brightness keys. Is there anyway to fix it?
0
votes
1answer
174 views

Cannot do temporary change in brightness

I mainly use my netbook for writing and browsing. So I have set the brightness to a minimum level. Sometimes when I watch videos I increase the brightness using hotkeys. But when increased after few ...
21
votes
4answers
13k views

Is there a software utility to adjust screen gamma/brightness/contrast?

I use to work at night and it is eye-hurting to watch at lightbulb-bright screens (I've got two - laptop's built-in panel and an external 18-inch CRT) in a dark environment. So I adjust my screens to ...
6
votes
4answers
11k views

Can't adjust brightness on my laptop

I'm having difficulty in adjusting brightness on my Acer Aspire 4740: Screen 14.1-inch glossy LED-backlit, 1366x768 res CPU Intel Core i5-430M 2.26-GHz RAM 1GB DDR3 HDD 320GB Graphics ...
2
votes
1answer
3k views

Is there a way to control flash video brightness independently, via config file?

My monitor brightness is reduced because it was causing me headaches. Web pages are displayed fine, but flash videos are too dark. I can control gecko-mediaplayer plugin brightness via mplayer config, ...
50
votes
11answers
40k views

Desktop doesn't remember brightness settings after a reboot

Every time I reboot my machine the brightness goes back to 100% in Gnome. I wish it would keep the last setting. Is there anyway?