Ever since i upgraded my backlight will not work what do i do

Asked by William Kerns on 2012-11-29

I have a acer Aspire and ever since i up graded it will not light up my back light what do i do to fix it or is there a way to back track i need to know

Question information

Language:
English Edit question
Status:
Solved
For:
Ubuntu acpi Edit question
Assignee:
No assignee Edit question
Solved by:
N1ck 7h0m4d4k15
Solved:
2012-11-30
Last query:
2012-11-30
Last reply:
2012-11-30
Best N1ck 7h0m4d4k15 (nicktux) said : #1

Well ,
there is something you can do and see if backlight works.

Open a terminal (CTRL+ALT+T) and give this command

gksudo gedit /etc/default/grub

at the opened window , search and find the line

GRUB_CMDLINE_LINUX_DEFAULT="quiet splash"

and change it to look exactly like this

GRUB_CMDLINE_LINUX_DEFAULT="quiet splash acpi_osi="

proofread , save the document and then

run in terminal this command

sudo update-grub

Reboot your PC and see if problem solved

Thanks

William Kerns (darth-bane1990) said : #2

Thank you it worked great

William Kerns (darth-bane1990) said : #3

Thanks NikTh, that solved my question.