I installed ubuntu 11.04 on my DV6 laptop and every thing went fine, BUT
when I shutdown it or restart it, it crashes.
So I have to hold the power button until the laptop powers off
HP pavilion Dv6
ati graphics card
This problem seems to be common to all those with DV6 laptops. Mine is the 3180EA, but others have reported exactly the same problem, with no solution.
This is the second installation of Ubuntu I've done on it. The 1st time, I also activated the restricted driver for the ATI graphics card. However, this resulted in Ubuntu not booting up at all!
SO, I suspect that it's the combination of integrated Intel and dedicated ATI graphics cards that is the problem?
I have no idea how to confirm this, how to find what is freezing the shutdown process, or how to fix it!
Any ideas? There are some other threads that cover this, but I have been advised not to add this to those, but to start a new thread instead. If you'd like me to add links to the other threads I've found, I'll do so...the etiquette for what to do here isn't clear to me, sorry.