I was mixing this with another issue. It is fixed in 15.04 with
3.19.0-31-generic (and possibly earlier), sorry.
** Changed in: unity
Status: New => Fix Released
** Changed in: unity (Ubuntu)
Status: New => Fix Released
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apport information
** Tags added: apport-collected rc-7.3.2+15.04.20150420-0ubuntu1 vivid
** Description changed:
Without noticible cause the brightness of the screen of my laptop is no
longer adjustable and stuck at the lowest level. Both the hotkey on my
keyboard and the brightness
Have you tried updated kernel?
sudo apt-get install python-bs4
git clone https://github.com/medigeek/kmp-downloader.git
cd kmp-downloader
chmod a+x kmpd.py
python kmpd.py
Choose last kernel
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Issue confirmed/reproduced with mainline kernel 4.2.3-unstable.
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https://bugs.launchpad.net/bugs/1403792
Title:
brightness of one of two screens no longer adjustable with hotkeys and
and it works adding "acpi_osi=" to /etc/default/grub
GRUB_CMDLINE_LINUX_DEFAULT ?
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https://bugs.launchpad.net/bugs/1403792
Title:
brightness of one of two screens no longer adjustable
btw support for utopic has ended
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https://bugs.launchpad.net/bugs/1403792
Title:
brightness of one of two screens no longer adjustable with hotkeys and
menu
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Same happen with Ubuntu 14.04.3 64 bit, I had 14.04.2 x86 and worked
fine with graphic controller Intel Corporation 3rd Gen Core processor
Graphics Controller (rev 09) but when updated to a 64 bit due to
notebook capabilities just did not worked...
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** Description changed:
Without noticible cause the brightness of the screen of my laptop is no
longer adjustable and stuck at the lowest level. Both the hotkey on my
keyboard and the brightness submenu in the system settings no longer
show any reaction to changes (i.e. key pressing and
** Description changed:
Without noticible cause the brightness of the screen of my laptop is no
longer adjustable and stuck at the lowest level. Both the hotkey on my
keyboard and the brightness submenu in the system settings no longer
show any reaction to changes (i.e. key pressing and
