Ubuntu
acpi package

cannot adjust brightness in 12.04 log in scren

Asked by kiran

when i edited the following i can control the brightness after login in to the but i cannot control brightness of log in screen

gksudo gedit /etc/default/grub

Change the line:
GRUB_CMDLINE_LINUX_DEFAULT="quiet splash"

to:
GRUB_CMDLINE_LINUX="GRUB_CMDLINE_LINUX_DEFAULT="quiet splash acpi_osi=Linux"

Save the new file, close gedit and run:
sudo update-grub

Reboot to test

Question information

Language:
English Edit question
Status:
Answered
For:
Ubuntu acpi Edit question
Assignee:
No assignee Edit question
Last query:
Last reply:
Revision history for this message
actionparsnip (andrew-woodhead666) said : 		#1

i suggest you report a bug

Can you help with this problem?

Provide an answer of your own, or ask kiran for more information if necessary.

To post a message you must log in.