1
vote
0answers
14 views

fglrx: dim screen until brightness key pressed

I reported this at https://bugs.launchpad.net/ubuntu/+source/fglrx-installer/+bug/1360218 three weeks ago but it is still unassigned and no one has commented on it but myself. It is a Lenovo G50-45 ...
1
vote
1answer
238 views

Monitor not turning off in 14.04

I have a freshly installed ubuntu 14.04. In settings "Brightness and locking" I had the following Settings: Turn monitor off after "10 Minutes" Locking: On Monitor locking after "5 ...
1
vote
0answers
228 views

Cannot lower brightness in Ubuntu 14.04 with amd drivers

So I cannot adjust my brightness at all. It is always at the max and I have tried updating the grub with acpi_osi=linux & acpi_backlight=vendor & acpi_osi= & acpi_osi=Linux ...
0
votes
0answers
240 views

AMD screen-brightness adjustment issue with Trusty Tahr

I upgraded to 14.04 just today and since I'm now using kernel v3.13 and according to This link, I should now be having better support for AMD grapahics. Is it possible to fix the screen-brightness ...
0
votes
0answers
53 views

fglrx brightness and black screen

In a HP 2000 Notebook PC and ubuntu 13.10, when I change the radeon driver for the fglrx, glxgears show more fps, but any brightness change make a black screen for one second. With the radeon driver ...
0
votes
0answers
98 views

Changing Brightness Xubuntu [13.10]

I cannot change the screen brightness on Xubuntu 13.10. I am running a Toshiba Satellite Laptop, using the proprietary fglrx AMD drivers, and have tried the acpi_vender etc. kernel parameters (do not ...
0
votes
0answers
103 views

Ubuntu 13.10 on Dell Inspirion N5010: Problems with Bluetooth and brightness

I install Ubuntu 13.10 64bit on my Dell N5010 laptop and I have also installed proprietary drivers for my ATI Radeon HD5650 and wireless card. I have noticed that Ubuntu didn't recognized my ...
3
votes
1answer
308 views

Notified brightness change is not applied

Note : I know this question is becoming quite common, but I'm afraid every solution I found failed to solve the problem. Maybe the knowledge-base we have about this is getting old, irrelevant for ...
0
votes
0answers
185 views

How can I enable brightness hot-keys on Ubuntu 13.10 running on a Toshiba L850?

How can I enable brightness hot-keys on Ubuntu 13.10 running on a Toshiba L850? I see threads mentioning that you add a line to menu.lst and a few others about different packages but none seem to ...
0
votes
0answers
119 views

Screen brightness control doesn't work after update

I just installed Xubuntu 12.04 on my Toshiba Satellite laptop. Out of the box, everything worked fine. I could change the screen brightness with the fn keys, and it changed automatically when ...
0
votes
0answers
585 views

Ubuntu Brightness Not Working

I am using 12.04 in my dell inspiron 3521.It has got AMD radeon 7600 and intel graphics.Brightness control was working perfectly. After wiping the pre installed 12.04,I installed new 12.04 ...
0
votes
0answers
174 views

Backlight brightness issue and USB error message

I have a Acer Aspire v5-551g with dual graphics AMD core A6. When I change the brightness like I make it maximum low, after a reboot or wake the brightness is full again. I have installed AMD's ...
1
vote
0answers
823 views

Brightness at 100% since updating from Kubuntu 13.04 to 13.10

since I've updated to Kubuntu 13.10 my brightness level is at 100%. I already googled around and tried different tips, but none of them worked. I've edited /etc/default/grub to ...
0
votes
0answers
125 views

Screen Brightness not working on Dual Graphics

i tried this fix to install ati drivers => How do I get AMD/Intel Hybrid Graphics drivers to work? everythink is excellent without brightness.Brightness control is not working. I tried ...
2
votes
1answer
207 views

Cannot change brightness of my laptop

My laptop is a DELL 3521 with dual graphic cards, which usually cause some problems, and I have switched off the AMD Radeon card. Now, when I want to turn the brightness down by dragging the ...
0
votes
1answer
221 views

Backlight controls stop working once X starts

I'm using a Lenovo Thinkpad X120e with Ubuntu 12.04 LTS 64-bit and a Gnome 3.4 (gnome-shell) desktop environment. I have installed the latest proprietary AMD drivers (From their website) for the AMD ...
0
votes
1answer
297 views

Brightness adjustment crashes 13.04

I'm using ubuntu 13.04 64 bit on a Dell Studio 1558 with a ATI/AMD 5400 series graphics card running the AMD 13.4 graphics drivers and sometimes when I try to adjust the screen brightness, the entire ...
0
votes
2answers
894 views

Low brightness: Ubuntu 13.04

I recently dual booted my Windows 8 with Ubuntu 13.04. The first thing that came to my notice was that the brightness was too low. I increased the brightness to maximum from system settings, but ...
0
votes
1answer
216 views

How to reduce brightness for sony vaio with 7650 HD

I just installed Ubuntu 12.10 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 ...
1
vote
2answers
3k views

ubuntu 13.04 brightness problem on laptop

I have installed Ubuntu 13.04 and the proprietary AMD catalyst driver 13.4. After installing the driver, the brightness of the screen has turned to the lowest and can not be changed. No matter how I ...
2
votes
0answers
153 views

Amd catalyst drivers increases screen contrast if laptop is on battery power

How to prevent catalyst drivers from increasing contrast if I switch from power supply to battery power? One oddity about this is that increase in contrast isn't shown in the drivers settings, e.g. if ...
0
votes
1answer
634 views

Toshiba C850 brightness problem

I have recently bought a Toshiba Satellite C850 laptop. I've managed to install Ubuntu 12.10 on it and everything works fine (this site helped me installing the wireless driver). The problem is that ...
2
votes
0answers
359 views

ATI HD 6320 ASUS Brightness doesn't change

When i press Function + [F5 or F6] to increase or decrease the brightness, the adjustment display on top right pops out and the slider moves but the screen brightness remains the same. i've done ...
0
votes
1answer
328 views

Ubuntu 12.10 w/ Kernel 3.7.0.7 and Open Source Driver RESUME/BRIGHTNESS CONTROL

I am using an Inspiron 7520. I got a AMD Radeon HD 7730m running in switching with an Intel 4000 HD. I have updated my Open source drivers with xorg edgers and x-swat. I am running on the kernel 3.7 ...
0
votes
2answers
672 views

Brightness with AMD/Intel open source drivers Ubuntu 12.10

I have an issue with the screen brightness of my computer. I have a Dell Inspiron 7520. I have a AMD Radeon HD 7730m 2gb with a Intel HD 4000, I am currently using the kernel lastest kernel from ...
2
votes
1answer
686 views

Brightness does not change on Asus K55n laptop

I have tried setting different acpi_os, acpi_backlight=vendor, changed the kernel to 3.7.4, and yet nothing happens when I use the FN + F5/F6 keys to change the brightness. KDE recognizes it and will ...
1
vote
1answer
781 views

Does the order of kernel parameters matter when adding acpi_backlight=vendor?

I am running 12.10 on an HP DV7-6197CA. I had fan issues which I was able to correct by changing this line in GRUB; GRUB_CMDLINE_LINUX_DEFAULT="quiet splash" to: GRUB_CMDLINE_LINUX_DEFAULT="quiet ...
5
votes
0answers
572 views

Display problem when adjusting brightness in ubuntu 12.04

Recently I installed Ubuntu 12.04 on my Dell 1554 laptop. I was adjusting my screen brightness when this happened : this has become a recurring problem which is really annoying. I also want to ...
0
votes
1answer
2k views

Ubuntu 12.04 - Unable to change brightness [ATI HD xxxx - Toshiba Satellite L510 19e]

i can't change my brighness. On my Ubuntu is the original Driver from ati.com running. i used Ubuntu 12.4 with the lastest Updates. Can everyone help me? Thanks Guys! my xorg.conf: Section ...
2
votes
1answer
740 views

Screen brightness in Ubuntu not working

Hardware: HP DVD6t, AMD Radeon 6700 OS: Natty 32-bit. I have researched a lot on this and basically most of the solutions that are on the internet / stackexchange revolves around the brightness ...