Public bug reported:

I purchased a brand new laptop model: HP 6930p with Intel 4500MHD
graphics and Intel 82801I (ICH9) HD Audio, and I installed Intrepid with
the latest updates. I have the following problems:

- The buttons for controlling the brightness (Fn F9/F10) don't work. xev does 
not show any events for these buttons. Trying to write values into 
/proc/acpi/video/GFX0/DD0?/brightness has no effect.
- Upon connect/disconnect the AC power, there is a little pop-up on the screen 
indicating that the brightness goes up or down, but there is no change in 
- If booted with AC connected, the brightness is high; if booted on battery, 
brightness is low. This won't change until reboot.

- Fn F8 is supposed to display a battery status bubble, but it doesn't.
sudo acpi_fakekey 236 has no effect either. When I press Fn F8, xev
reports keycode 244.

- Once Gnome starts, the mute light comes on. I cannot switch this off
using any of the various volume controls and I have no sound on the
front speakers. (Since the physical button has a problem as well, I have
no way to un-mute. However, when I boot from the original Vista disk, I
can control the mute from the GUI and I do get sound.) Audio output on
the headset jack is ok, and I can mute the sound from the GUI. It seems
that the mute light reflects the front speakers only. ALl volume up/down
controls (physical and GUI) seem to work fine.

I do not see any of these problems when I boot my older laptop (HP
NC6000) from an Intrepid CD.

** Affects: linux (Ubuntu)
     Importance: Undecided
         Status: New

mute, brightness buttons on new HP 6930p laptop
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