sound & display brightness problem in dell studio 1555 with ubuntu 9.04
I was using Ubuntu 8.10 on dell studio 1555. There was sound but while using headphone, sound was also coming from speaker. Also I was unable to change display brightness.
Now I had updated to Ubuntu 9.04. Ubuntu Studio is also installed.
No sound in kernel 2.6.28-13-generic, kernel 2.6.28-11-generic, kernel 2.6.28-3-rt.
But strange thing is that there is sound in kernel 2.6.27-14-generic. I had also updated alsa driver to 1.0.20. But still problem not solved.
I am able to change display brightness hardly for a minute after boot. Then unable to change it. Even on removal of power, there is no change in display brightness. So unable to work for more time if there is no power.
If I could get solution, it would be better for me.
Waiting for support...
Thanks.
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