Hello Christopher. I did the update just now and nothing has changed.
Here's the output you asked for:
$ sudo dmidecode -s bios-version && sudo dmidecode -s bios-release-date
45CN38WW
10/21/2011
BTW as I already mentioned, I wonder if you are looking for the problem
in the wrong place. I filed this bug against the kernel since I did not
know where exactly else to file it and the hardware hotkey is not
working.
But as I said, if I manually adjust the contents of
/sys/class/backlight/intel_backlight/brightness the actual display
brightness does change.
The problem is only that I am not able to change the brightness via the
keyboard hotkey as well as the power applet.
** Changed in: linux (Ubuntu)
Status: Incomplete => Confirmed
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https://bugs.launchpad.net/bugs/1255428
Title:
8086:0116 [Lenovo IdeaPad Z570] LCD brightness control keys and widget
do not work on Intel Graphics on Saucy
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