Chris Stratford, this bug was reported a while ago and there hasn't been
any activity in it recently. We were wondering if this is still an
issue? If so, could you please test for this with the latest development
release of Ubuntu? ISO images are available from
Rather bizarrely, I can't get it to work with any of the mainline
kernels. Even going back to 3.9.11-030911-generic which should work
(since the real 3.10.0-6 works fine) I get no brightness control.
I've also noticed the screen never seems to get turned off. After a
while it will blank the
** Changed in: linux (Ubuntu)
Status: Incomplete = Confirmed
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Title:
display brightness keys don't generate evdev events
Consulting http://kernel.ubuntu.com/~kernel-ppa/info/kernel-version-map.html :
3.11.0-0.2 3.11.0-rc4
3.11.0-0.1 3.11.0-rc3
3.10.0-6.17 3.10.3
Hence, before commit bisecting, one would want to switch to the mainline, and
further kernel version bisect. Hence, from your last
Trying bisecting didn't work for me, as (according to the wiki's
translation of the output) it spans non-linear tags. My attempt to
build from a 3.10 mainline kernel produced an image that suffered from
the same issue, but that didn't provide a linux-image-extras package
which seems to be
Chris Stratford, the next step would be to bisect from Raring to Saucy,
in order to identify the offending commit. Could you please do this
following https://wiki.ubuntu.com/Kernel/KernelBisection ?
** Tags removed: kernel-bug-exists-upstream-v3.12-rc2
** Tags added:
I've narrowed it down to 3.11.0-0.2 as the start of the problem. The
last working saucy kernel was 3.10.0-6.17
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Title:
display
Latest kernel installed:
$ uname -a
Linux tuor 3.12.0-031200rc6-generic #201310191635 SMP Sat Oct 19 20:36:43 UTC
2013 x86_64 x86_64 x86_64 GNU/Linux
Brightness keys still don't work and evtest still registers no
keypresses.
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Chris Stratford, could you please test the latest mainline kernel via
http://kernel.ubuntu.com/~kernel-ppa/mainline/v3.12-rc6-saucy/ and
advise to the results?
** Tags added: latest-bios-a06
** Tags removed: kernel-bug-exists-upstream
** Tags added: kernel-bug-exists-upstream-v3.12-rc2
Tested with linux-image-3.12.0-031200rc2-generic, but no change.
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Title:
display brightness keys don't generate evdev events after
** Tags added: kernel-bug-exists-upstream
** Changed in: linux (Ubuntu)
Status: Incomplete = Confirmed
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Title:
display
apport information
** Tags added: apport-collected
** Description changed:
On raring (and precise) the display brightness keys (fn+f4 and fn+f5) on
my Dell Inspiron 14z turned the brightness up and down. After a saucy
upgrade this no longer happens (I don't see the popup brightness
Just tried with an older kernel, as suggested (3.8.0-30) and it brings
the correct behaviour back.
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Title:
display brightness keys
Would it be possible for you to test the latest upstream kernel? Refer
to https://wiki.ubuntu.com/KernelMainlineBuilds . Please test the latest
v3.12 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
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