Acer Aspire 4740 (Ubuntu Linux 2.6.32-24) Solved:
1. Update BIOS firmware to version 1.09. (download from Acer web site and
install in Windows)
2. Edit /etc/default/grub file and add:
acpi_osi=Linux acpi_backlight=vendor
For example:
$ sudo gedit /etc/default/grub
GRUB_CMDLINE_LINUX_DEFAULT="quiet splash acpi_osi=Linux
acpi_backlight=vendor"
3. Update grub:
$ sudo update-grub
Now arrows keys change brightness are working, but screen brightness
applet does not show up. And brightness is not automatically adjusted
when power cord has been unplugged. If you find a better solution let me
know.
Kind regards.
--
Screen brightness can not be adjusted in Lucid with Intel Arrandale graphics
https://bugs.launchpad.net/bugs/573984
You received this bug notification because you are a member of Ubuntu
Bugs, which is subscribed to Ubuntu.
--
ubuntu-bugs mailing list
[email protected]
https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
