Ubuntu
linux package

  1. Bug #899244
  2. Comment #42

Comment 42 for bug 899244

Revision history for this message
Brian K. White (bkw777) wrote :

[quote]The backlight works WITHOUT the poulsbo driver.

well "works" with a script to manage brightness as my function keys do not always work, even with the kernel options "acpi_backlight=vendor and acpi_osi=Linux".[/quote]

How does this work exactly?

I have precise beta and kernel 3.2.0-23-generic-pae on a Vaio P and using psb_gfx and lxde.
When I press the bright/dim hot keys lxde (or openbox? x?) recognizes it and displays a little popup showing a brightness change indicator, but the brightness does not actually change.

This worked fine on oneiric using emgd 1.8 on the same machine a few weeks ago up until I upgraded to precise beta and switched to psb_gfx.

If psb_gfx has backlight support, how do I use it?