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On 2008-11-07T11:02:49+00:00 Michal wrote:

Created attachment 322840
lshal -l

Description of problem:
Controll of brightnes in inverted on this model of ThinkPad (according to 
thinkwiki, its using IdeaPad firmware). Adding more backlight with Fn+End 
causes the brightness go down. Fn+Home vice versa. But the logic of controlling 
backlight is inverted. So the gnome brightness indicator is comming down when 
brightness is increasing and up, when decreasing. Also, when inactive for 
several minutes, powersaving sets brightnes to maximum, as it may think, its 
minimum.

Version-Release number of selected component (if applicable):
up-to-date rawhide
hal-info-20081022-1.fc10.noarch
hal-libs-0.5.12-12.20081027git.fc10.i386
hal-0.5.12-12.20081027git.fc10.i386

How reproducible:
always with enabled X

Steps to Reproduce:
1. press Fn+Home (with arrow marking down direction)
2. brigtness go up

1. on battery, leave the terminal inactive for several minutes with enabled 
power saving by decreasing brightness.
2. look ad the difference on the screen brightness

Actual results:
Backlight controll is inverted

Expected results:
Backlight will work according its logic

Additional info:
# dark screen
[root@fight ~]# echo 13 > /sys/class/backlight/acpi_video1/brightness 
# bright screen
[root@fight ~]# echo 0 > /sys/class/backlight/acpi_video1/brightness

Reply at:
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/220310/comments/7

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On 2008-11-14T23:56:22+00:00 Lubomir wrote:

Created attachment 323670
Patch to fix the brightness issue on ThinkPad SL300

This fixes the issue. Reassigning to kernel.

Reply at:
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/220310/comments/8

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On 2008-11-15T15:00:34+00:00 Lubomir wrote:

Works for me. Thanks for fast fix.

btw, this may also apply to all Lenovo SL series.

Reply at:
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/220310/comments/9

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On 2008-11-15T15:03:38+00:00 Michal wrote:

Works for me. Thanks for fast fix.

btw, this may also apply to all Lenovo SL series.

Reply at:
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/220310/comments/10

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On 2008-11-15T16:26:54+00:00 Lubomir wrote:

/me makes a note to himself to drop bugzilla login cookie when working
on someone else's lappy, since the result may sound somewhat strange :}

Reply at:
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/220310/comments/11

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On 2008-11-26T04:57:29+00:00 Bug wrote:


This bug appears to have been reported against 'rawhide' during the Fedora 10 
development cycle.
Changing version to '10'.

More information and reason for this action is here:
http://fedoraproject.org/wiki/BugZappers/HouseKeeping

Reply at:
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/220310/comments/12


** Changed in: hotkey-setup (Fedora)
   Importance: Unknown => Medium

-- 
You received this bug notification because you are a member of Kernel
Packages, which is subscribed to linux in Ubuntu.
https://bugs.launchpad.net/bugs/220310

Title:
  Brightness function keys reversed

Status in linux package in Ubuntu:
  Fix Released
Status in hotkey-setup package in Fedora:
  Fix Released

Bug description:
  Binary package hint: gnome-power-manager

  Similar to -- but not the same as -- other bug reports about
  brightness issues on laptops.

  Simply put, Fn+up does what Fn+down should do (makes the screen
  dimmer), and Fn+down does what Fn+up should do (make the screen
  brighter).

  It also seems to skip a brightness level (only five brightness
  levels).  There is no slider for screen brightness under System -
  Power Manager.

  Release: Ubuntu 8.04 beta
  Package version: 2.22.1-1ubuntu4
  Expect to happen: Fn+up makes screen brighter, Fn+down makes screen dimmer
  What actually happens: Fn+up makes screen dimmer, Fn+down makes screen 
brighter.
  Kernel: 2.6.24-16-generic
  Gfx card: Intel GM965/GL960
  Machine: Lenovo Ideapad Y510

  Not sure if I need to post more info.

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