1

I picked up an hp dm3t laptop with intel HD graphics and installed ubuntu 10.10 64 bit on it. It works great -- the only problem is that the brightness controls on the keyboard don't work. The brightness is always at full. When I try to adjust it down, the indicator graphic indicates that it's going down but the actual brightness doesn't change. Is there anything that I can try to make this work? I'd really appreciate any help.

I asked this on superuser.com and someone commented that I should play around with the intel hd drivers. I'm a total noob -- how do I do that? What else can I try? I really don't want to go back to windows.

Community
  • 1
James
  • 1,775

2 Answers2

3

This seems to be a kernel bug.

You might be interested in reading this bug report, where an Ubuntu kernel developer posted a link to his PPA with a patched kernel (including steps on how to install it).

htorque
  • 66,086
0

Try this.

sudo -H gedit /etc/default/grub

Change the line GRUB_CMDLINE_LINUX="" into 

GRUB_CMDLINE_LINUX="acpi_osi=Linux"

Run

sudo update-grub

Restart your Linux

Credit to this guy

Zanna
  • 72,312
Kramer2010
  • 61