Ubuntu
alsa-driver package

  1. Bug #568611
  2. Comment #241

Comment 241 for bug 568611

Revision history for this message
Oscar Bidabehere (oscar-bidabehere) wrote :

Hi, my notebook is an HP Pavilion DV7 with a Radeon Hybrid Card. I had Ubuntu 10.04 32bits and the patch Kamal made worked for me using the following kernel Params:
*radeon.modeset=0 (disables radeon discrete card)
*acpi_backlight=vendor (kamal patch)

Now I updated to Ubuntu 11.10 64bits and the patch is supposed to be already in the kernel. The problem is that if I use the second param, I get a black screen almost all of the time, and some few times the systems boots correctly with the brightness control working correctly.

Is there any way to solve this?

I would appreciate it very much!