** Description changed:
The Fn+F8 and Fn+F9 keys are not working on my Clevo W350ST with Kubuntu
Raring to change screen brightness of the internal laptop screen. I
installed linux-headers-3.11.0-4, linux-headers-3.11.0-4-generic,
linux-image-3.11.0-4-generic and linux-image-extra-3.11.0-4
** Description changed:
The Fn+F8 and Fn+F9 keys are not working on my Clevo W350ST with Kubuntu
Raring to change screen brightness of the internal laptop screen. I
installed linux-headers-3.11.0-4, linux-headers-3.11.0-4-generic,
linux-image-3.11.0-4-generic and linux-image-extra-3.11.0-4
Finally tested upstream kernel. Unfortunatelly, behavior is still
exactly as the bug description even with v3.13-rc6-trusty
** Tags removed: kernel-bug-exists-upstream
** Tags added: kernel-bug-exists-upstream-v3.13-rc6-trusty
** Changed in: linux (Ubuntu)
Status: Incomplete => Confirmed
I burned a disk with the daily live of 2013-12-03 and the bug persists
exactly the same. Fn keys change the value of
/sys/class/backlight/acpi_video0/brightness. This doesn't change actual
screen brightness, that can be changed altering the value of
/sys/class/backlight/intel_backlight/brightness.
I updated to Saucy Salamander 13.10 and the problem persists even with
kernel 3.11.0-13-generic #20-Ubuntu SMP x86_64 x86_64 x86_64 GNU/Linux.
Not using Xorg-Edgers PPA, anymore, since I notice nVidia-319 is
available, but still using Bumblebee.
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/bin/echo 0 > /sys/class/backlight/intel_backlight/brightness
made the screen completely dark, but the Fn keys did not work. I needed
to type a
echo 4000 > /sys/class/backlight/intel_backlight/brightness
to be able to see the screen again.
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Without adding "acpi_backlight=vendor" in the boot parameters:
ls /sys/class/backlight
acpi_video0 intel_backlight
Adding "acpi_backlight=vendor" in the boot parameters:
ls /sys/class/backlight/
intel_backlight
So Fn keys start working with "acpi_backlight=vendor" boot parameter
because the ke
Hello, Richard Hull, thanks for the info. As in comment #27, at least in
my laptop, all I needed to do is to add the "acpi_backlight=vendor" to
make Fn brightness keys work, but that made VGA connection and auto
screen switch stop working and I use that a lot. BTW, you can probably
keep your bumbl
OK, reported this bug to upstream
bug 63201
https://bugzilla.kernel.org/show_bug.cgi?id=63201
** Bug watch added: Linux Kernel Bug Tracker #63201
http://bugzilla.kernel.org/show_bug.cgi?id=63201
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I was unable to test 3.8.13.11-raring because it won't boot with my
LUKS-Crypt Volume, because it does not ask for my passphrase, but tested
with 3.8.13.10-raring and the problem happens with it.
I also tested with 3.11.5-saucy and the problem persists, so I updated
the tags as oriented.
** Tags
I accessed
http://kernel.ubuntu.com/~kernel-ppa/mainline/?C=M;O=D
ordered by date and the most recent raring version is
v3.8.13.10-raring/ 25-Sep-2013 18:57
the most recent saucy version is
v3.11.5-saucy/ 14-Oct-2013 02:52
the most recent 3.9 version is
v3.9.11-saucy/ 21-Jul-2013 00:4
I booted with acpi_backlight=vendor and the Fn+F8 and Fn+F9 keys worked
as expected to control the internal laptop screen brightness. But there
was a side effect: now, plugin the external VGA does not change to
external screen automatically anymore. And after manually changing to
the external VGA i
apport information
** Attachment added: "ProcCpuinfo.txt"
https://bugs.launchpad.net/bugs/1218547/+attachment/3877885/+files/ProcCpuinfo.txt
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apport information
** Attachment added: "WifiSyslog.txt"
https://bugs.launchpad.net/bugs/1218547/+attachment/3877892/+files/WifiSyslog.txt
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apport information
** Attachment added: "ProcInterrupts.txt"
https://bugs.launchpad.net/bugs/1218547/+attachment/3877887/+files/ProcInterrupts.txt
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apport information
** Attachment added: "UdevDb.txt"
https://bugs.launchpad.net/bugs/1218547/+attachment/3877890/+files/UdevDb.txt
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apport information
** Attachment added: "Lsusb.txt"
https://bugs.launchpad.net/bugs/1218547/+attachment/3877884/+files/Lsusb.txt
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apport information
** Attachment added: "ProcEnviron.txt"
https://bugs.launchpad.net/bugs/1218547/+attachment/3877886/+files/ProcEnviron.txt
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apport information
** Attachment added: "ProcModules.txt"
https://bugs.launchpad.net/bugs/1218547/+attachment/3877888/+files/ProcModules.txt
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apport information
** Attachment added: "UdevLog.txt"
https://bugs.launchpad.net/bugs/1218547/+attachment/3877891/+files/UdevLog.txt
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apport information
** Attachment added: "PulseList.txt"
https://bugs.launchpad.net/bugs/1218547/+attachment/3877889/+files/PulseList.txt
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apport information
** Attachment added: "CurrentDmesg.txt"
https://bugs.launchpad.net/bugs/1218547/+attachment/3877880/+files/CurrentDmesg.txt
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apport information
** Attachment added: "Lspci.txt"
https://bugs.launchpad.net/bugs/1218547/+attachment/3877883/+files/Lspci.txt
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apport information
** Attachment added: "IwConfig.txt"
https://bugs.launchpad.net/bugs/1218547/+attachment/3877882/+files/IwConfig.txt
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apport information
** Attachment added: "BootDmesg.txt"
https://bugs.launchpad.net/bugs/1218547/+attachment/3877878/+files/BootDmesg.txt
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apport information
** Attachment added: "HookError_cloud_archive.txt"
https://bugs.launchpad.net/bugs/1218547/+attachment/3877881/+files/HookError_cloud_archive.txt
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http
apport information
** Tags added: apport-collected raring
** Description changed:
The Fn+F8 and Fn+F9 keys are not working on my Clevo W350ST with Kubuntu
Raring to change screen brightness of the internal laptop screen. I
installed linux-headers-3.11.0-4, linux-headers-3.11.0-4-generic,
apport information
** Attachment added: "CRDA.txt"
https://bugs.launchpad.net/bugs/1218547/+attachment/3877879/+files/CRDA.txt
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