** Changed in: linux (Ubuntu)
Status: Fix Committed => Fix Released
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Title:
(regression) no backlight control
To manage notifications abo
a fix was commited upstream as of linux 3.5-rc5 and included in ubuntu
with the latest rebase (linux-3.5.0-3.3).
** Changed in: linux (Ubuntu)
Status: Triaged => Fix Committed
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htt
** Changed in: linux
Status: Incomplete => Invalid
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Title:
(regression) no backlight control
To manage notifications about this bug go to
** Changed in: linux
Status: Confirmed => Incomplete
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Title:
(regression) no backlight control
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** Changed in: linux (Ubuntu)
Status: Confirmed => Triaged
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Title:
(regression) no backlight control
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** Changed in: linux (Ubuntu)
Importance: Undecided => Medium
** Tags added: kernel-bug-exists-upstream
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Title:
(regression) no backlight con
** Changed in: linux
Status: Unknown => Confirmed
** Changed in: linux
Importance: Unknown => Medium
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Title:
(regression) no backlight
** Bug watch added: Linux Kernel Bug Tracker #43310
http://bugzilla.kernel.org/show_bug.cgi?id=43310
** Also affects: linux via
http://bugzilla.kernel.org/show_bug.cgi?id=43310
Importance: Unknown
Status: Unknown
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Setting acpi_backlight=vendor didn't change anything, still no entries
in /sys/class/backlight for 3.4, like there are for 3.3.7.
I encountered some errors concering the DSDT, though.
I tried with both 3.4 ubuntu kernel and my own vanilla 3.3.7 kernel, I got the
same results using fwts:
The reass
Also see https://wiki.ubuntu.com/Kernel/Debugging/Backlight
In particular, try adding acpi_backlight=vendor to your kernel boot
parameters on the GRUB command line.
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During this phase of the Ubuntu release cycle, the Ubuntu kernel team
has rebased the Ubuntu kernel with the upstream mainline kernel.
Unfortunately, it is sometimes the case that bugs can still exist in the
upstream mainline kernel. The upstream kernel has its own bug tracking
system. See https://
apport information
** Tags added: apport-collected
** Description changed:
beginning with 3.4-rc1, backlight control seems to be not working for my
laptop.
the keyboard shortcuts have no effect and the backlight settings are not
displayed in gnome-control-center.
I compiled the latest
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https://bugs.launchpad.net/bugs/1005196
Title:
(regression) no backlight control
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https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1005
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