[Expired for linux (Ubuntu) because there has been no activity for 60
days.]
** Changed in: linux (Ubuntu)
Status: Incomplete = Expired
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No. Once reboot, the screen backlight brightness becomes normal (as
before boot into ubuntu), but the keyboard backlight remains maximum
even booted into OSX. However, the keyboard light level changes to the
previous state after pressing the hotkey. This means that the keyboard
light level is kept
On Thu, Feb 13, 2014 at 11:11:50PM -, Yuan Chao wrote:
Joseph: Thanks a lot for the following ups. Actually, I forgot to
mention that I've tried acpi_backlight=vendor on 13.10 (as my friend $4
suggested) and the same problem persists. As to the keyboard light, it's
set to maximum at login
I looked into the screen brightness issue a little bit a while back. The
reason that the brightness gets set to maximum at boot is that the
firmware doesn't initialize some state memory with the brightness at
boot, so when the brightness is read from the firmware it gets back a
value which
** Changed in: linux (Ubuntu)
Importance: Undecided = Medium
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Title:
[MacBook Air 6,2] screen backlight brightness and keyboard light turn
Joseph: Thanks a lot for the following ups. Actually, I forgot to
mention that I've tried acpi_backlight=vendor on 13.10 (as my friend $4
suggested) and the same problem persists. As to the keyboard light, it's
set to maximum at login (lightdm?) screen, which it different from
screen backlight.
apport information
** Tags added: apport-collected saucy
** Description changed:
Problem: Both the screen backlight brightness and keyboard light are
turned on during the booting as tested on ubuntu 12.04.3, 12.04.4, and
13.10. Due to installation problem on 12.04, it's only tested with
