On 16.04 (and 14.04), the following link fixed it for me:
https://itsfoss.com/fix-brightness-ubuntu-1310/
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https://bugs.launchpad.net/bugs/1255428
Title:
8086:0116 [Lenovo
On 14.04, this link fixed it for me: https://itsfoss.com/fix-brightness-
ubuntu-1310/
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Title:
8086:0116 [Lenovo IdeaPad Z570] LCD
Nisheet Lall, it will help immensely if you filed a new report with the Ubuntu
repository kernel (not mainline/upstream) via a terminal:
ubuntu-bug linux
Please feel free to subscribe me to it.
For more on why this is helpful, please see
https://wiki.ubuntu.com/ReportingBugs.
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Fixed following Arch-Wiki.
Details in:
https://nisheetlall.wordpress.com/2016/07/12/solved-brightness-fix-in-linux-1for-optimus-laptops/
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[Expired for linux (Ubuntu) because there has been no activity for 60
days.]
** Changed in: linux (Ubuntu)
Status: Incomplete => Expired
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Shriramana Sharma, that would be fine for now.
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Title:
8086:0116 [Lenovo IdeaPad Z570] LCD brightness control keys and widget
do
I'm sorry but I'm still running Trusty LTS waiting for the next LTS to
install. It seems the 4.4 kernel is only available for Wily but Wily
comes with 4.2 and I'll have to install Wily and the kernel. Is it
sufficient for me to test a recent daily image from
Shriramana Sharma, to see if this already resolved upstream, could you
please test the latest mainline kernel (4.4) and advise to the results?
** Changed in: linux (Ubuntu)
Status: Confirmed => Incomplete
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** Tags added: saucy trusty
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Title:
8086:0116 [Lenovo IdeaPad Z570] LCD brightness control keys and widget
do not work on Intel
Confirmed on 4.2-RC1. Same workarounds still work. BTW I also checked on
Fedora 22 which has kernel 4.0.4 (admittedly lesser version but) which
means it's not Ubuntu specific anyhow.
** Changed in: linux (Ubuntu)
Status: Incomplete = Confirmed
** Tags removed:
Shriramana Sharma, the latest mainline kernel is 4.2-rc1 (not 4.1.1).
** Changed in: linux (Ubuntu)
Status: Confirmed = Incomplete
** Summary changed:
- 8086:0116 [Lenovo IdeaPad Z570] LCD brightness control keys and widget do not
work on Intel Graphics on Saucy
+ 8086:0116 [Lenovo
Hello. I downloaded the latest kernel 4.1.1 for the Trusty LTS that I am
using and even there the behaviour is the same. Again the workarounds I
previously mentioned still work.
Now I'm not an expert but I really don't think this is a kernel bug at
all because if the Xorg conf entry is there then
** Tags removed: needs-upstream-testing
** Tags added: kernel-bug-exists-upstream kernel-bug-exists-upstream-4.1.1
** Changed in: linux (Ubuntu)
Status: Expired = Confirmed
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[Expired for linux (Ubuntu) because there has been no activity for 60
days.]
** Changed in: linux (Ubuntu)
Status: Incomplete = Expired
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Pending
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1255428/comments/31
.
** Description changed:
After upgrading to Saucy, on my Lenovo IdeaPad Z570 with Intel HD
Graphics 3000, it is no longer possible to control the LCD brightness
using the hardware brightness control keys.
Hello. Sorry for the delay. I've now installed Trusty and the problem
persists. However the solution provided by
http://askubuntu.com/a/395442/170127 works. (The command line option
detailed at http://askubuntu.com/a/382833/170127 works as well.)
** Changed in: linux (Ubuntu)
Status:
Bu still exists in 14.04 64-bit
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Title:
8086:0116 [Lenovo IdeaPad Z570] LCD brightness control keys and widget
do not work on
I also have Intel graphics in a HP laptop
This fix also works in 14.04:
http://askubuntu.com/questions/362894/changing-the-brightness-stopped-working-in-13-10-saucy-salamander
If you're using intel video card do:
sudo gedit /usr/share/X11/xorg.conf.d/20-intel.conf
Add the following in the
Shriramana Sharma, could you please test the latest upstream kernel available
(not the daily folder) following https://wiki.ubuntu.com/KernelMainlineBuilds ?
It will allow additional upstream developers to examine the issue. Once you've
tested the upstream kernel, please comment on which kernel
taj, 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
Shriramana Sharma, as per download.lenovo.com/express/ddfm.html, an update to
your BIOS is available (38). If you update to this following
https://help.ubuntu.com/community/BiosUpdate does it change anything? If it
doesn't, could you please both specify what happened, and provide the output of
Hello Christopher. I did the update just now and nothing has changed.
Here's the output you asked for:
$ sudo dmidecode -s bios-version sudo dmidecode -s bios-release-date
45CN38WW
10/21/2011
BTW as I already mentioned, I wonder if you are looking for the problem
in the wrong place. I filed
** Tags removed: bios-outdated-45cn38ww
** Tags added: latest-bios-45cn38ww
** Tags added: regression-release
** Tags added: needs-bisect
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