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SubjectRe: Linux 3.11-rc2
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On Mon, 2013-07-22 at 21:56 +0200, Rafael J. Wysocki wrote:
> On Monday, July 22, 2013 06:16:20 PM Matthew Garrett wrote:
> > On Mon, 2013-07-22 at 15:02 +0200, Rafael J. Wysocki wrote:
> >
> > > In the meantime I received a report from Steven Newbury that these changes
> > > broke things for him too, so we need to revert commits 8c5bd7a and efaa14c.
> > > The other two commits in the series should be benign.
> >
> > Could you let me know the details of this problem?
>
> Steven, can you please describe the problem you're seeing to Matthew and
> the other people on the list?
>
> Rafael
>

Before the changes backlight was working fine using the ACPI method:
/sys/class/backlight/acpi_video0/ is present and the keyboard function keys
control brightness with notifications working in GNOME.

In the code as was present in the linux-pm/bleeding-edge tree I would
encounter a hard lockup on keyboard brightness trigger. This also occurred with
the code as it initially hit mainline, but a later commit fixed the crash*, but
resulted in no backlight controls being available at all.
/sys/class/backlight is empty.

*not actually sure if /sys/class/backlight contained anything before this




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