Comment 9 for bug 1221790
Revision history for this message
| Anmar Oueja (anmar) wrote Re: [Bug 1221790] Re: Screen brightness is maximum upon fresh boot | #9 |
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a60fb26
(Get the code!)
I did upgrade the BIOS a few weeks ago when I was running 13.10.
Unfortunately, this didn't change anything. I am now running 14.04
with the latest apt-get and the results are the same.
> What happened?
Upon cold boot or restart, the screen brightness is set to maximum
even if my setting wasn't.
> Output of the command "sudo dmidecode -s bios-version && sudo dmidecode -s bios-release-date"
G6ET99WW (2.59 )
11/19/2013
One thing I noticed is that when the machine boots and the "lenovo"
logo is displayed, the screen brightness is set to maximum, which
leads to believe that UEFI runtime services may not be setting the
brightness variable properly so it isn't persistent.