postadelmaga, please do not adjust the Status. For more on this, please
see https://wiki.ubuntu.com/Bugs/Status .
** Changed in: linux (Ubuntu)
Status: Confirmed => Triaged
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** Changed in: linux (Ubuntu)
Status: Triaged => Confirmed
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Title:
8086:0116 [Dell Inspiron 14z (N411z)] Display brightness k
it also affectes other dell:
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/954661
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Title:
8086:0116 [Dell Inspiron 14z (N411z
Issue is still present on 15.04.
Any chance to get it fixed ?
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Title:
8086:0116 [Dell Inspiron 14z (N411z)] Display brightness keys
rpgmaker, please again see
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1229591/comments/61
.
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Title:
8086:0116 [Dell Inspir
I can still experience the issue on 14.04.1
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Title:
8086:0116 [Dell Inspiron 14z (N411z)] Display brightness keys don't
generate e
I confirm the above statement. Also tried Fedora 21 rawhide (with kernel
3.16) and the bug is still present.
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Title:
8086:0116 [Dell
Bug still present in 3.16 RC3
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Title:
8086:0116 [Dell Inspiron 14z (N411z)] Display brightness keys don't
generate evdev events af
I also tried latest fedora, arch and suse, and the same problem
persists.
So it must be a kernel problem and not something debian-based.
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https://bugs.launchpad.net/bugs/1229
Just a pastebin of xorg that might bve of assistance.
http://paste.ubuntu.com/7582689/
As you will see it says:
intel(0): found backlight control interface acpi_video0 (type
'firmware')
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Also, the brightness keys work when I am in the Grub Menu !!!
That is, before loading the OS.
What could be wrong after loading the OS ???
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Just to add another piece of information.
The brightness function keys work just fine when I am in BIOS.
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Title:
8086:0116 [Dell In
rpgmaker, thank you for your comment. So your hardware and problem may be
tracked, could you please file a new report with Ubuntu by executing the
following in a terminal while booted into a Ubuntu repository kernel (not a
mainline one) via:
ubuntu-bug linux
For more on this, please read the of
I also suffer from this bug. I have used 12.10 for the past year and
upgraded to 14.04 but aside from the fact that it seemed generally buggy
this did not work. Going over all the versions between 12.10 and 14.04
revealed that 13.04 is the only one where the brightness keys still
work. After that t
Just another piece of information I would like to add.
As I said, I have ubuntu 14.04 installed with kernel 3.13.
I have downloaded from here:
http://kernel.ubuntu.com/~kernel-ppa/mainline/v3.2.59-precise/ the latest 3.2
kernel and installed it.
More specifically I downloaded and installed the
Apologies, I cannot do it. It's too dificult for me. I tried various things and
almost made my system inoperable.
I hope devs can solve it with the info and terminal results already provided.
Otherwise, if anyone has more knowledge on these things, he is free to try.
Last working kernel was 3.10.0
madvinegar, one may learn about bisecting following
https://wiki.ubuntu.com/Kernel/KernelBisection .
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Title:
8086:0116 [Dell Inspiro
I have also sent the email to intel-...@lists.freedesktop.org
I got a reply from Jani Nikula as per below:
"A bisect result on upstream kernel pointing at the regression might be
useful... although we've changed the code considerably since 3.14."
And from Daniel Vetter as per below.
"Yeah, if t
madvinegar, you shouldn't be sending e-mails to any one person. Instead,
as noted in
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1229591/comments/51
you should be sending it to the linux-input mailing list, as previously
advised to you in
https://bugs.launchpad.net/ubuntu/+source/linux/+bu
I have sent the email with all the info to Mr Matthew Garret at
mj...@srcf.ucam.org.
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Title:
8086:0116 [Dell Inspiron 14z (N411z)] D
madvinegar, you may want to start with linux-input.
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Title:
8086:0116 [Dell Inspiron 14z (N411z)] Display brightness keys don't
ge
Hi, Thanx for your reply.
Could you please be a little more specific?
To whom should I send/mail all the info I will gather from the terminal
commands/results when using the latest 3.15 kernel?
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Chris Stratford / madvinegar, the issue you are reporting is an upstream
one. Could you please report this problem through the appropriate
channel by following the instructions _verbatim_ at
https://wiki.ubuntu.com/Bugs/Upstream/kernel ?
Please provide a direct URL to your e-mail to the mailing li
Just tried kernel 3.15 rc3, but unfortunately the brightness functions
keys (Fn+F4 and Fn+F5) still do not work.
Any comments/ideas regarding my previous post?
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Thank you for your reply. I will test kernel 3.15 and revert with news
(probably later on today).
In the meantime and after reading various reported bugs, I came accross this
one:
http://www.aristofunnies.gr/wp-content/uploads/2010/12/photo-12.jpeg
It regards dell xps13, but refers to the exact
madvinegar, if you would like to help with this issue, please test the
latest mainline kernel via http://kernel.ubuntu.com/~kernel-
ppa/mainline/v3.15-rc2-trusty/ and advise to the results. The fact it is
an RC is not relevant information here, as it contains new patches not
found in prior kernel r
I installed today kernel 3.14.1. The problem is still present.
I have not tried yet kernel 3.15 as it is in a very early (RC2) stage
yet.
I have also tried hundreds of grub parameters and conf files inside X11
(following the ARCH wiki here: https://wiki.archlinux.org/index.php/backlight)
but s
** Changed in: linux (Ubuntu)
Status: Confirmed => Incomplete
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Title:
8086:0116 [Dell Inspiron 14z (N411z)] Display brightnes
I made a clean installation of 14.04 yesterday but unfortunately the
problem with the brightness keys is still present.
Have there been any developments as regards isolating the culprit?
It is very strange considering that the keys worked just fine up to
13.04 and kernel 3.8.
I don't know if it
Thank you. Please see here:
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1280394
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Title:
8086:0116 [Dell Inspiron 14z (N411z
madvinegar, please again see
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1229591/comments/42
.
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Title:
8086:0116 [Dell Insp
Hi. Thanx for your reply.
Since I have exactly the same laptop with the same GPU (id 8086:0116) would it
be better just to keep updating this bug report and provide additional info?
(rather than opening a new bug report?)
I could provide additional info by running:
apport-collect -p linux #12295
madvinegar, thank you for your comment. So your hardware and problem may be
tracked, could you please file a new report with Ubuntu by executing the
following in a terminal while booted into a Ubuntu repository kernel (not a
mainline one) via:
ubuntu-bug linux
For more on this, please read the
Just to add that I have today updated my BIOS to the latest available
for my laptop (I had A02 and I updated to A06), however the brightness
function keys still don't work.
So we will have to wait for a fix to be included in a newer kernel.
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I have exactly the same problem and exactly the same laptop. I would be
very very happy to see this fixed at least for 14.04.
I have 14.04 installed right now on this laptop but I still have the same
problem with the function keys.
In case you need to do any tests in 14.04 release, please let me
** Package changed: xorg (Ubuntu) => linux (Ubuntu)
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Title:
8086:0116 [Dell Inspiron 14z (N411z)] Display brightness keys don't
ge
Status changed to 'Confirmed' because the bug affects multiple users.
** Changed in: linux (Ubuntu)
Status: New => Confirmed
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Sending to xorg for stack review. Please send back if found to be a
kernel issue.
** Package changed: linux (Ubuntu) => xorg (Ubuntu)
** Changed in: xorg (Ubuntu)
Importance: Medium => Low
** Changed in: xorg (Ubuntu)
Status: Incomplete => New
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No change I'm afraid.
I might be misunderstanding what those options do, but the problem isn't
the backlight itself. As I stated in the original bug report, changing
the value in /sys/class/backlight/intel_backlight/brightness does dim
the screen (as does the slider in system settings / brightnes
Chris Stratford, thank you for your quick response. Could you please clear out
the non-default kernel boot parameters, and test the following individually and
advise if it changes anything:
acpi_backlight=vendor
video.use_bios_initial_backlight=0
when only testing a mainline kernel v3.13.x+ (for
For my Trusty test it would not have been used (at least not
intentionally), as that was from a pure live CD boot.
For all other tests, it would be. Offhand, I don't recall why or when
they were added, but I suspect it was an attempt to improve battery life
or reduce the temperature.
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Chris Stratford, thank you for testing Trusty. Just to clarify, were you
utilizing the following kernel boot parameters in your bisection or Trusty
testing:
pcie_aspm=force i915.i915_enable_rc6=1
As well, could you please comment to why you have these?
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** Tags added: trusty
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Title:
8086:0116 [Dell Inspiron 14z (N411z)] Display brightness keys don't
generate evdev events after sauc
I've just tested the latest trusty-desktop-amd64.iso and it has the same
problem. There's still no response to the brightness keys.
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