I had feisty and upgraded it to gutsy on my HP pavilion dv2225nr. I did this because I could not get the wlan to work at all on feisty. After the upgrade, I installed the nvidia restricted driver and tried the wireless one as well. The video driver worked perfect. Wlan was still broken. I followed the tutorial in this forum http://ubuntuforums.org/showthread.php?t=297092 AFTER undoing my previous failed attempts. This means removing ndiswrapper and disabling the restricted driver firmware for the wlan. This got my wireless working.
Then, I noticed a sound problem. This is because I also have vista on this machine ( I figuerd why delete it if I paid for it). I used this fix http://ubuntuforums.org/showthread.php?t=455147 to make it work. The only other option is to boot linux off the battery and then plug it in after started.
Last, my webcam was dead. However, I successfully got this to work as well. This made it work and was pulled from this excellent post on fixes http://ubuntuforums.org/showthread.p...vilion+webcam:
Open a console and enter:
If it looks similar to the following
Bus 002 Device 002: ID 0c45:62c0 Microdia
1) Install subversion from the repos. Open Terminal type this:
sudo apt-get install subversion
2) In Terminal enter this:
svn checkout http://svn.berlios.de/svnroot/repos/...nux-uvc/trunk/
3) Change the following in the Makefile:
INSTALL_MOD_DIR := usb/media
INSTALL_MOD_DIR := kernel/ubuntu/media/usbvideo
4) Save it and close. In Terminal type:
sudo make install
sudo modprobe uvcvideo
5) Under VIDEO, select v4l2 and choose USB 2.0 for device.
Now everything works. I upgraded my RAM to 2GB, have compiz-fusion with emerald running, AWN, and everything seems to be doing pretty good so far. It was a bit trick at first, but a little determination can make you go a long way. If you are having trouble, don't give up. The experience of eventually succeeding is good and makes you wiser.