Would it be possible for you to test the latest upstream kernel? Refer
to https://wiki.ubuntu.com/KernelMainlineBuilds . Please test the latest
v3.14 kernel[0].
If this bug is fixed in the mainline kernel, please add the following
tag 'kernel-fixed-upstream'.
If the mainline kernel does not fix
kernel-fixed-upstream
I installed and booted 3.14.0-031400rc7-generic #201403162235 SMP Mon Mar 17
02:36:19 UTC 2014 x86_64 x86_64 x86_64 GNU/Linux without the
acpi_backlight=vendor kernel parameter and both the hotkeys and the brightness
applet are working correctly.
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Title:
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Title:
Backlight
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Title:
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Title:
Adding the kernel parameter acpi_backlight=vendor now allows both the
hotkeys and the brightness applet to modify the brightness.
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