Ubuntu
linux package

  1. Bug #314119
  2. Comment #7

Comment 7 for bug 314119

Revision history for this message
Steve Beattie (sbeattie) wrote : Re: [Bug 314119] Re: [intrepid] proposed 2.6.27-11.22 kernel breaks t61 lcd brightness

Andy,

I tested the kernel at http://people.ubuntu.com/~apw/lp311716-intrepid/
(after disabling the thinkpad_acpi brightness_enable module option)
and brightness controls do indeed work with that kernel. Thanks!
It results in there only being thinkpad_screen/ under
/sys/devices/virtual/backlight/.

Oddly, I also tried the current jaunty kernel, 2.6.28-4.9, (on
intrepid) and gnome-power-manager is able to adjust brightness levels
with that kernel somehow, despite both the /proc/acpi/video and
/sys/devices/virtual/backlight/acpi_video0/ interfaces not doing anything.

Thanks again!