I'm also suffering from this same problem. Just tested with 4.7-rc6 (released
today), and the problem has been resolved.
(There are other issues I'm experiencing with this kernel, so I will boot back
to 4.4)
@Stephen, installing another kernel alongside your existing one is
rather easy, and does
I just installed a fresh install of 13.10 on this machine, and the problem
persisted. However, changing my GRUB settings to
GRUB_CMDLINE_LINUX_DEFAULT="quiet splash"
GRUB_CMDLINE_LINUX="acpi_osi=Linux"
now allows me to adjust the brightness, although at boot, it's set to 0. (I'll
look into that
I upgraded to Saucy, running 3.11, and this bug persists.
** Changed in: linux (Ubuntu)
Status: Expired => Opinion
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https://bugs.launchpad.net/bugs/1178727
Title:
8
Christopher M. Penalver, thanks for your clear instructions.
I tested with linux-image-3.12.0-031200rc6-generic, and this problem persists.
I also found that when booting the machine, I can adjust the brightness when
GRUB2 is loaded, and then when I boot into Ubuntu, I'm stuck at whatever
brightn
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