How I can change my Brightness on ubuntu 12.04 beta

Asked by Rayan Hassanain on 2012-03-06

After I upgrade to 12.04 I can't change my brightness and dim

And the F4 and F5 key not working to change the brighness
My laptop is dell n5110

Thanks

Question information

Language:
English Edit question
Status:
Solved
For:
Ubuntu acpi Edit question
Assignee:
No assignee Edit question
Solved by:
Rayan Hassanain
Solved:
2012-03-07
Last query:
2012-03-07
Last reply:
2012-03-07

Can you give the output of:

sudo lshw -C display; lsb_release -a; uname -a

Thanks

Nikol (nikol) said : #2

I'm not the original poster, but I'm having the same issue. This is the output:

[sudo] password for nikol:
  *-display
       description: VGA compatible controller
       product: 2nd Generation Core Processor Family Integrated Graphics Controller
       vendor: Intel Corporation
       physical id: 2
       bus info: pci@0000:00:02.0
       version: 09
       width: 64 bits
       clock: 33MHz
       capabilities: msi pm vga_controller bus_master cap_list rom
       configuration: driver=i915 latency=0
       resources: irq:11 memory:c0000000-c03fffff memory:b0000000-bfffffff ioport:5000(size=64)
LSB Version: core-2.0-amd64:core-2.0-noarch:core-3.0-amd64:core-3.0-noarch:core-3.1-amd64:core-3.1-noarch:core-3.2-amd64:core-3.2-noarch:core-4.0-amd64:core-4.0-noarch
Distributor ID: Ubuntu
Description: Ubuntu precise (development branch)
Release: 12.04
Codename: precise
Linux nikol-PC 3.2.0-18-generic #28-Ubuntu SMP Fri Mar 2 20:02:50 UTC 2012 x86_64 x86_64 x86_64 GNU/Linux

Are there any bugs reported?

Nikol (nikol) said : #4

I searched and didn't see it.

This isn't exactly a fix, but it works for me...

Install xbacklight:
sudo apt-get install xbacklight

Then adjust it with the following, 1-100:
xbacklight -set 70

Rayan Hassanain (rhh1010) said : #5

This is the output
rayan@rayan-Inspiron-N5110:~$ sudo lshw -C display; lsb_release -a; uname -a
[sudo] password for rayan:
  *-display
       description: VGA compatible controller
       product: 2nd Generation Core Processor Family Integrated Graphics Controller
       vendor: Intel Corporation
       physical id: 2
       bus info: pci@0000:00:02.0
       version: 09
       width: 64 bits
       clock: 33MHz
       capabilities: msi pm vga_controller bus_master cap_list rom
       configuration: driver=i915 latency=0
       resources: irq:54 memory:f6400000-f67fffff memory:d0000000-dfffffff ioport:f000(size=64)
No LSB modules are available.
Distributor ID: Ubuntu
Description: Ubuntu precise (development branch)
Release: 12.04
Codename: precise
Linux rayan-Inspiron-N5110 3.2.0-18-generic #28-Ubuntu SMP Fri Mar 2 20:02:50 UTC 2012 x86_64 x86_64 x86_64 GNU/Linux

Thanks Nikol (nikolnieto) its work with me by
xbacklight -set 70

cuc (cuc+) said : #6

same problem here on samsung rf511... brightness slider in settings gone missing and also fn shortcuts stopped working after updating (too many packages) on precise... worked in oneiric and precise alpha3

cuc (cuc+) said : #7

well it seems to work now after upgrading right now (using archive.ubuntu.com) - fn keys working also brightness slider in settings is back again..
issue solved for me

Nikol (nikol) said : #8

Solved for me too with today's update!