boss this line work but if u try out same hw at RHEL if yes pls let me at Ubuntu and Kubuntu it is rocking thanks ton!!!!!!!!!!!!
I have the same card and followed all the suggestions here and on the Ubuntu forums with no luck. Then I searched the net and found a solution. Even tho I have an HP dv-7 laptop, this solution works for me.
Open your Konsole and got to the directory /etc/modprobe.d/:
cd /etc/modprobe.d/
then type the command:
sudo nano alsa-base.conf --you'll be prompted for your password, enter it
Add this line to the bottom of the file:
options snd-hda-intel model=dell-m4-2 enable_msi=1
Then save, ctrl-O, exit, ctrl-X and reboot your machine.