Jack Ramsay, thank you for performing the requested test. Could you please
advise if any of the following kernel parameters individually provide a
WORKAROUND following https://help.ubuntu.com/community/BootOptions :
acpi_backlight=vendor
video.use_bios_initial_backlight=0
thinkpad-acpi.brightness_enable=1
** Tags removed: kernel-bug-exists-upstream-3.13.0-031300rc7
** Tags added: kernel-bug-exists-upstream-v3.13-rc7
** Changed in: linux (Ubuntu)
Status: Confirmed => Incomplete
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https://bugs.launchpad.net/bugs/1244645
Title:
Brightness is at 100 percent and will not change
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