After updating to Kubuntu 13.10 it got worse again, also the workaround
using "acpi_backlight=vendor" does not fully work: It allows controlling
the brightness via KDE's power-applet, but the function-keys (Fn+cursor
left or right) do not work at all (also "xev" does not report and
KeyPress event w
[Expired for linux (Ubuntu) because there has been no activity for 60
days.]
** Changed in: linux (Ubuntu)
Status: Incomplete => Expired
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Ti
misko, could you please test the latest mainline kernel via
http://kernel.ubuntu.com/~kernel-ppa/mainline/v3.12-trusty/ and advise
on the results?
** Tags removed: bios-outdated-1.16
** Tags added: latest-bios-v2.13
** Changed in: linux (Ubuntu)
Importance: Undecided => Medium
** Changed in:
[Expired for linux (Ubuntu) because there has been no activity for 60
days.]
** Changed in: linux (Ubuntu)
Status: Incomplete => Expired
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Ti
Hi,
yes, I also noticed that and asked acer´s support (> half a year ago), and they
told me that my notebook was already rolled out with an UEFI-BIOS (2.xy), and
that there is no updated yet for it. (I´m not sure whether it´s possible (resp.
a goog idea) to "downgrade" to the latest non-UEFI-BIO
misko, quick question, regarding your BIOS version, where did you go
specifically to update the BIOS? I checked Acer's website, and all the
versions are v1.xy, while your Bug Description notes v2.xy.
** Tags removed: kernel-bug-exists-upstream
** Tags added: needs-upstream-testing
** Description
Also retested now with a mainline-kernel
(http://kernel.ubuntu.com/~kernel-ppa/mainline/v3.11-rc7-saucy/) in my kubuntu
(precise) setup - problem still persists - brightness can't be controlled
(neither with ctrl + coursor, nor with the widget).
Output of dmesg is attached.
Linux 3.2.0-52-gener
apport information
** Tags added: apport-collected saucy
** Description changed:
On an Acer Travelmate 8481TG using the default-config, the screen's
brightness can't be controlled (with Fn+cursor-key), altought the event
is recognized (and displayed in a popup in the upper right corner of
Above you can find the outcome of apport-collect with today's development
release (ubuntu@ubuntu:~$ uname -a
Linux ubuntu 3.11.0-4-generic #9-Ubuntu SMP Mon Aug 26 15:21:06 UTC 2013 x86_64
x86_64 x86_64 GNU/Linux).
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misko, this bug was reported a while ago and there hasn't been any
activity in it recently. We were wondering if this is still an issue? If
so, could you please test for this with the latest development release
of Ubuntu? ISO images are available from http://cdimage.ubuntu.com
/daily-live/current/
The described behaviour with acpi_backlight=vendor only occurs if the
power-supply is connected. When running from battery, the behaviour is
as expected (mouse-movement re-enables display).
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** Changed in: linux (Ubuntu)
Status: New => Confirmed
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Title:
Brightness-Troubles with Acer Travelmate 8481TG
To manage notifications abo
** Package changed: ubuntu => linux (Ubuntu)
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Title:
Brightness-Troubles with Acer Travelmate 8481TG
To manage notifications about this bug go to
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Title:
Brightness-Troubles with Acer Travelmate 8481TG
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