** Changed in: linux
Importance: Unknown = Medium
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https://bugs.launchpad.net/bugs/320874
Title:
[asus] /sys/devices/virtual/backlight/acpi_video0/brightness has it
backwards
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** Changed in: linux (Ubuntu)
Assignee: Andy Whitcroft (apw) = (unassigned)
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[asus] /sys/devices/virtual/backlight/acpi_video0/brightness has it backwards
https://bugs.launchpad.net/bugs/320874
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The fixes referred to in the linked bug are now included in Karmic so
this is Fix Released there. Also the latest -proposed has fixes to
ensure the brightness values are ordered correctly. If you could test
one of those and report back that would be helpful.
** Changed in: linux (Ubuntu)
For what it's worth, the backlight seems to work as expected in Kubuntu
Karmic. Unfortunately, I don't have an Ubuntu/Karmic installation to try
out at the moment.
When it comes to Jaunty, I've completely given up on the intel stack and
am currently running what's available from the xorg-edgers
** Changed in: linux
Status: Incomplete = Fix Released
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[asus] /sys/devices/virtual/backlight/acpi_video0/brightness has it backwards
https://bugs.launchpad.net/bugs/320874
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** Changed in: linux
Status: Confirmed = Incomplete
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[asus] /sys/devices/virtual/backlight/acpi_video0/brightness has it backwards
https://bugs.launchpad.net/bugs/320874
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** Changed in: linux
Status: Fix Released = Confirmed
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[asus] /sys/devices/virtual/backlight/acpi_video0/brightness has it backwards
https://bugs.launchpad.net/bugs/320874
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The upstream bug is now resolved, and as far as I understand it, the fix
is a general acpi-video fix that possibly could close a number of bugs
for jaunty.
I haven't had time to test yet, but it would be great if one of our
kernel guys could take a look at it.
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[asus]
Those patches are very new, when they hit someones tree we can try them
out.
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[asus] /sys/devices/virtual/backlight/acpi_video0/brightness has it backwards
https://bugs.launchpad.net/bugs/320874
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** Changed in: linux
Status: Incomplete = Fix Released
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[asus] /sys/devices/virtual/backlight/acpi_video0/brightness has it backwards
https://bugs.launchpad.net/bugs/320874
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** Changed in: linux
Status: In Progress = Incomplete
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[asus] /sys/devices/virtual/backlight/acpi_video0/brightness has it backwards
https://bugs.launchpad.net/bugs/320874
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is this a duplicate of bug #311716 ?
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[asus] /sys/devices/virtual/backlight/acpi_video0/brightness has it backwards
https://bugs.launchpad.net/bugs/320874
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ubuntu-bugs mailing list
Note sure if it's a dupe. I'm seeing the problem on Jaunty with a 2.6.28
kernel, so it probably isn't.
One note about this bug: I tried running on kernel 2.6.29-rc4 and with
that kernel the values in
/sys/devices/virtual/backlight/acpi_video0/brightness work properly.
That is, the values from 0
** Changed in: linux
Status: Incomplete = In Progress
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[asus] /sys/devices/virtual/backlight/acpi_video0/brightness has it backwards
https://bugs.launchpad.net/bugs/320874
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This bug is particularly important to fix for kubuntu users. In ubuntu,
blacklisting the video module gives a working desktop environment, as
gnome-power-manager apparently handles the backlight by some other
means. The KDE power manager, however, doesn't seem to have this
alternate way of
** Changed in: linux (Ubuntu)
Assignee: (unassigned) = Andy Whitcroft (apw)
Status: Triaged = In Progress
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[asus] /sys/devices/virtual/backlight/acpi_video0/brightness has it backwards
https://bugs.launchpad.net/bugs/320874
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I have pulled this patch down and applied it to the Jaunty kernel. I
have built some test kernels including this patch if you could test
those and report back here. The kernels can be found at the URL below:
http://people.ubuntu.com/~apw/lp320874-jaunty/
** Changed in: linux (Ubuntu)
Andy, the new kernel does not work for me. New behavior:
+ /sys/devices/virtual/backlight/acpi_video0/brightness seems to work
accurately.
+ xbacklight -set works accurately
- xbacklight does not read backlight values properly (it always returns
0.0)
- Fn-brightness buttons don't work as
Thanks Khashayar,
I'm just including the upstream git commit id for the Ubuntu kernel team
to reference. Thanks.
ogasaw...@yoji:~/linux-2.6$ git log -p
935e5f290ec1eb0f1c15004421f5fd3154380fd5
commit 935e5f290ec1eb0f1c15004421f5fd3154380fd5
Author: Zhang Rui rui.zh...@intel.com
Date: Thu
** Changed in: linux
Status: Unknown = Invalid
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[asus] /sys/devices/virtual/backlight/acpi_video0/brightness has it backwards
https://bugs.launchpad.net/bugs/320874
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** Changed in: linux
Status: Unknown = Incomplete
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[asus] /sys/devices/virtual/backlight/acpi_video0/brightness has it backwards
https://bugs.launchpad.net/bugs/320874
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** Changed in: linux
Bugwatch: Linux Kernel Bug Tracker #12235 = Linux Kernel Bug Tracker
#12249
Status: Invalid = Unknown
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[asus] /sys/devices/virtual/backlight/acpi_video0/brightness has it backwards
https://bugs.launchpad.net/bugs/320874
You received this bug notification
I realized my upstream bug report was marked a duplicate. Changed the
link to the linux kernel bug tracker to reflect that.
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[asus] /sys/devices/virtual/backlight/acpi_video0/brightness has it backwards
https://bugs.launchpad.net/bugs/320874
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