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.
Best Answer
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).