Comment 5 for bug 1520355

InUbuntu14.04with kernel3.16the issue issolved so:
http://compizomania.blogspot.de/2014/06/ubuntu-1404linux-mint-17.htmlTo
upgrade the kernelhas not yet happened, asthere was little timeand
knowledge.Whenwill updatebe sure to writeyou. InDebianJessiehas decided
as follows:addedin/etc/defaults/grubinthe
variablevalueGRUB_CMDLINE_LINUX_DEFAULT="acpi_backlight=vendor"

30.11.2015 23:47, Joseph Salisbury пишет:
> Did this issue start happening after an update/upgrade? Was there a
> prior kernel version where you were not having this particular problem?
>
> Would it be possible for you to test the latest upstream kernel? Refer
> to https://wiki.ubuntu.com/KernelMainlineBuilds . Please test the latest
> v4.4 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 this bug, please add the tag:
> 'kernel-bug-exists-upstream'.
>
> Once testing of the upstream kernel is complete, please mark this bug as
> "Confirmed".
>
>
> Thanks in advance.
>
> [0] http://kernel.ubuntu.com/~kernel-ppa/mainline/v4.4-rc3-wily
>
> ** Changed in: linux (Ubuntu)
> Importance: Undecided => Medium
>
> ** Changed in: linux (Ubuntu)
> Status: Confirmed => Incomplete
>