Ubuntu

how to fix light adjustment on ubuntu 10.10

Asked by Peter T Butler

How do you fix screen light adjustment on asus pc 1005pe i like to see what i am doing
Is there an update to fix this problem.
I have been told all kinds of things from upgrading bios then another person says not good
idea, another person takes me into a long discussion which I can not understand.
Is there any one can tell me how to fix this problem . IN DETAIL and simply
this problem was in 10.04 and i figured if i updated that would fix problem boy was I wrong
I also have windows 7 and Ubuntu 10.10. which do I use to fix problem.
Please when you explain give enough detail as not all of us experienced as you the writer
thank you ,
Peter Butler

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Solved by:
George Standish
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actionparsnip (andrew-woodhead666) said : 		#1

What is the current release installed. There are fixes I have found with little effort. Can you give the output of:

lsb_release -a; uname -a

Thanks

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actionparsnip (andrew-woodhead666) said : 		#2

If you run:

gksudo gedit /etc/default/grub

Find this line:
GRUB_CMDLINE_LINUX_DEFAULT="quiet splash"

Change it to:
GRUB_CMDLINE_LINUX_DEFAULT="quiet splash acpi_osi=Linux acpi_backlight=vendor"

Save the new file, close gedit and run:

sudo update-grub

Reboot to test.

Source:
https://wiki.ubuntu.com/HardwareSupport/Machines/Netbooks

I websearched for:
http://www.google.co.uk/search?sourceid=chrome&client=ubuntu&channel=cs&ie=UTF-8&q=ubuntu+asus+pc+1005pe

And it popped right up......

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Best George Standish (george-standish-deactivatedaccount) said : 		#3

Peter,

I have an EEE 1005PE as well, the following doesn't 100% fix the issue - but makes it MUCH better.

Taken from http://ubuntuforums.org/showthread.php?t=1412922

gksu gedit /etc/default/grub

 GRUB_CMDLINE_LINUX_DEFAULT="splash quiet"

  Change to

 GRUB_CMDLINE_LINUX_DEFAULT="splash quiet acpi_osi=Linux"

Reboot and it will be much improved.

Best of luck,
George

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Peter T Butler (pnbutler32) said : 		#4

thanks it is much brighter trade off is though lost all control of being able to adjust dark or light
but i can live with that much better than the former way it worked

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George Standish (george-standish-deactivatedaccount) said : 		#5

Peter,

Using ONLY the above steps I'm still able to use the Fn keys to adjust brightness, so I'm not sure why you are unable to.

Perhaps you've made another change that is preventing it?

Good luck, glad it's working better now.

George

Revision history for this message
Peter T Butler (pnbutler32) said : 		#6

that is interesting as I have not done any other adjustment at all