Finally I decided to try the latest kernel on Lucid and now works like charm :).
~# uname -a Linux studio 2.6.32-10-generic #14-Ubuntu SMP Thu Jan 7 17:38:08 UTC 2010 x86_64 GNU/Linux Still, I think that should be solved in Karmic. It is not acceptable that the "fix" would be that!. -- Dell Studio 1555: cannot change display brightness after a while, other hotkeys and ACPI stuff begin to fail https://bugs.launchpad.net/bugs/392812 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs