The problem still exists with kernel 3.17.3 and seems to be fixed with
3.18-rc1 (where the system behaviour is the same as described further
above for 3.18-rc4).
I have read the wiki articles about bisecting with git (and found all of
this quite interesting) and also locally built one kernel versi
I was brave enough to update the BIOS and got the new version:
Running
sudo dmidecode -s bios-version && sudo dmidecode -s bios-release-date
I get:
A11
10/27/2009
The system has booted successfully, but the problem with the brightness
control is still the same. Setting brightness through
xbacklight doesn't work either:
xbacklight -set 5
No outputs have backlight property
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Title:
Backlight control not working Dell Ins
I just tried again changing the brightness value via the command line,
like
echo 15 > /sys/class/backlight/acpi_video0/brightness
echo 1 > /sys/class/backlight/acpi_video0/brightness
and now saw that this did work. Looks like I didn't test this correctly
in the first place. So the problem must b
** Changed in: linux (Ubuntu)
Status: Incomplete => Confirmed
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Title:
Backlight control not working Dell Insprion Mini 10
St
I have now installed kernel:
3.18.0-031800rc4-generic #201411091835 SMP Sun Nov 9 23:58:06 UTC 2014
i686 i686 i686 GNU/Linux
After booting with this kernel, the system was not fully functional
(desktop shown, but LXDE start menu and taskbar empty).
However pushing F4/F5 for decreasing/increasin
I should probably add that the system reacts on the brightness keys
(F4/F5) by displaying and changing the brightness bar indicator, only
that this has no effect on the actual screen brightness.
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** Attachment added: "dsdt.dat"
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1392024/+attachment/4259300/+files/dsdt.dat
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** Attachment added: "version"
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1392024/+attachment/4259314/+files/version
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Ti
** Attachment added: "ssdt4.dat"
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1392024/+attachment/4259312/+files/ssdt4.dat
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** Attachment added: "fwts_method"
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1392024/+attachment/4259306/+files/fwts_method
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** Attachment added: "backlight"
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1392024/+attachment/4259298/+files/backlight
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** Attachment added: "ssdt3.dat"
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1392024/+attachment/4259311/+files/ssdt3.dat
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** Attachment added: "video"
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1392024/+attachment/4259315/+files/video
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Title:
** Attachment added: "ssdt2.dat"
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** Attachment added: "acpidump.txt"
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1392024/+attachment/4259297/+files/acpidump.txt
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** Attachment added: "dsdt.dsl"
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** Attachment added: "dmidecode.log"
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1392024/+attachment/4259299/+files/dmidecode.log
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** Attachment added: "ssdt1.dat"
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** Attachment added: "ssdt5.dat"
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Public bug reported:
Since my upgrade from Lubuntu 14.04 to 14.10, my backlight controls
(hotkeys to increase/decrease brightness) no longer work on my Dell
Inspiron Mini 10. With 14.04 and earlier versions there was no problem.
There are entries under /sys/class/backlight. I have also tried boot
** Attachment added: "fwts"
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1392024/+attachment/4259304/+files/fwts
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Title:
** Attachment added: "acpi"
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1392024/+attachment/4259296/+files/acpi
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Title:
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