After using the Nouveau driver for months, I needed performance and came
back to Nvidia proprietary driver 340.102 on Ubuntu 16.04. The problem
still exist, but my script that fix it by adding 'Option
"RegistryDwords" "EnableBrightnessControl=1"' into
** Changed in: nvidia-graphics-drivers-375 (Ubuntu)
Importance: Undecided => High
** Changed in: nvidia-graphics-drivers-340 (Ubuntu)
Importance: Low => High
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nox2apic seems like a poor workaround and also doesnt resove the issue
on most systems
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https://bugs.launchpad.net/bugs/1389215
Title:
Brightness controls are not working in Unity /
impacting every platform that quadro runs on:
http://forums.opensuse.org/showthread.php/494532-Brightness-doesn-t
-change-on-openSUSE-13-1-Nvidia-quadro
http://www.pclinuxos.com/forum/index.php?topic=136106.0
https://devtalk.nvidia.com/default/topic/639374/recent-nvidia-drivers-
this may actually be a microcode flaw since it apparently affects
windows too?
https://forums.geforce.com/default/topic/910276/screen-brightness-
issues-with-a-quadro-card/
** Also affects: nvidia-graphics-drivers-375 (Ubuntu)
Importance: Undecided
Status: New
** Changed in:
Status changed to 'Confirmed' because the bug affects multiple users.
** Changed in: nvidia-graphics-drivers-340 (Ubuntu)
Status: New => Confirmed
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I was experiencing this bug with KDE NEON 5.8 on my MacBookPro5,5.
Luckily I stumbled over https://bugs.launchpad.net/ubuntu/+source
/nvidia-graphics-drivers-340/+bug/1389215/comments/50 (Thank you Hans
Deragon (deragon)).
As my laptop uses NVIDIA GeForce 9400M, I had to slightly tweak his
script
** Tags removed: needs-vivid-test
** Tags added: xenial
** No longer affects: xorg (Ubuntu)
** Project changed: nvidia => nvidia-graphics-drivers-340 (Ubuntu)
** Changed in: nvidia-graphics-drivers-340 (Ubuntu)
Importance: Undecided => Low
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Ok, so I upgraded my Lenovo w510 to Ubuntu 16.04 LTS Xenial Xerus and
the problem persists. The fix I provide works, though when changing the
brightness, it is jerky, i.e. it flashes between a low level and the
actual selected level. But once the desired level reached, all is good.
So, can we
This LTS Enablement Stack scares me a lot; I do not want to screw my
system. So if I understand you correctly, I should return to my
previous state with the following command, right?
sudo apt-get remove linux-generic-lts-vivid xserver-xorg-core-lts-vivid
xserver-xorg-lts-vivid
Hello Hans,
You can just remove the vivid kernel by removing those packages that the wiki
page ask you to install.
And reboot, you will be running on Trusty kernel again.
BTW the Vivid kernel will reach EOL on Aug. 2016, see:
** Changed in: nvidia
Status: New => Incomplete
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Title:
Brightness controls are not working in Unity / Xorg because of Nvidia
M. Penalver, the link you provide does not indicate how to revert such a
change. I want to keep my OS LTS, not having it become obsolete in a
few months. Are you in contact with the people that created that link
and can you ask them to document the rollback procedure so I can return
to a pure
** Also affects: nvidia
Importance: Undecided
Status: New
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Title:
Brightness controls are not working in Unity / Xorg because of
Following instructions found in bug #562005, I fixed the problem in
Ubuntu 14.04.03 LTS Trusty Thar. Attached, the script which fixes the
problem. It only creates the file /usr/share/X11/xorg.conf.d/99-nvidia-
proprietary-brigthness-keys-fix.conf if a card that suffers from the
problem is
Hans Deragon, any change updating to the Vivid enablement stack as
outlined in https://wiki.ubuntu.com/Kernel/LTSEnablementStack ?
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Title:
De-dup this bug
As this one shouldn't be duplicated to an EOL bug.
** This bug is no longer a duplicate of bug 562005
Backlight controls of laptops with NVIDIA NVS and Quadro FX 880M GPUs no
longer function while using proprietary drivers
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*** This bug is a duplicate of bug 562005 ***
https://bugs.launchpad.net/bugs/562005
** This bug has been marked a duplicate of bug 562005
Backlight controls of laptops with NVIDIA NVS and Quadro FX 880M GPUs no
longer function while using proprietary drivers
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I tried acpi_backlight=vendor on grub to novail. It even stopped
working on the TTY. Putting grub as it was restored the functionality
back in the TTY. Under X11, the problem persists.
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I replaced the official proprietary NVIDIA driver nvidia-331 with
nvidia-340 from xorg-edgers and the problem persists. nvidia-340
(340.76) is the latest driver for the legacy card Quadro FX 880M of my
Lenovo W510.
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I fully understand that there are no resources to test this. Still, the
bug is valid and I cannot provide more input. It should be remained to
'new' to avoid expiration. It should not expire; it exist for real.
And having this bug open, someone else having the same problem might one
day stumble
** Changed in: xorg (Ubuntu)
Status: Incomplete = New
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Title:
Brightness controls are not working in Unity / Xorg because of Nvidia
Hans Deragon, not testing at least a live environment is largely going
to further delay your issue from being addressed (as it has already).
** Changed in: xorg (Ubuntu)
Status: New = Incomplete
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I do not have a spare drive, nor the time to perform such extensive
test. I am a desktop, power user and I cannot afford the time to do QA
on vivid. The problem still exist as of today on the LTS. Is anything
we can test on the LTS to get the fix on LTS?
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Hans Deragon, just to clarify, one doesn't need a spare computer to test
Vivid. One may either perform a dual boot, swap a dedicated and
temporary spare drive in, or test the live environment.
** Changed in: xorg (Ubuntu)
Status: New = Incomplete
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Moved to 'new' to avoid expiration. I answered the question asked,
though I confirm that I cannot test with 15.04.
** Changed in: xorg (Ubuntu)
Status: Incomplete = New
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Ah, I understand. No I cannot test it with the latest version of
Ubuntu. I do not have a spare computer to do so. However, it is still
relevant to Ubuntu 14.04 LTS Trusty Thar, which is a LTS and for which I
hope this bug will be fixed. Since I use Ubuntu as my main OS, I need
stability and
Pending
https://bugs.launchpad.net/ubuntu/+source/xorg/+bug/1389215/comments/6 .
** Changed in: xorg (Ubuntu)
Status: New = Incomplete
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To avoid expiration of this bug, I put it back to 'new'. if more
information is required, please indicate in a comment what is required
and how to fetch that information.
** Changed in: xorg (Ubuntu)
Status: Incomplete = New
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Greetngs M. Penalver. I noticed that you have put back this bug in
Imcomplete with the additional tag needs-vivid-test. I fail to
understand what else I can provide you. What does needs-vivid-test
mean and how can I perform that test on my system? The problem still
exist, is real and should
** Changed in: xorg (Ubuntu)
Status: Incomplete = New
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Title:
Brightness controls are not working in Unity / Xorg because of Nvidia
The problem still persist on my laptop running Ubuntu 14.04 LTS Trusty
Thar, all packages updated up to 2015-02-25.
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Title:
Brightness controls
apport information
** Tags added: apport-collected possible-manual-nvidia-install
** Description changed:
Brightness controls are not working in Unity / Xorg. When pressing the
keys fnhome and fnend on my Lenovo W510, I see the indicator on
the screen showing the level of brightness
** Tags added: needs-vivid-test
** Changed in: xorg (Ubuntu)
Importance: Undecided = Low
** Changed in: xorg (Ubuntu)
Status: New = Incomplete
** Description changed:
Brightness controls are not working in Unity / Xorg. When pressing the
keys fnhome and fnend on my Lenovo W510,
Hans Deragon, 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
Discovered another behaviour. If you play with the brightness controls
under Xorg, nothing changes. However, suspend the computer and resume
it, and the brightness will be setup to the last setup you left when
playing with the brightness controls. Thus, the value in the kernel
persists.
You
Reverted to using NVIDIA proprietary drivers because Nouveau cannot
resume from sleep (year old critical issue:
https://bugs.launchpad.net/ubuntu/+source/xserver-xorg-video-
nouveau/+bug/884)
The problem occurs only with NVIDIA proprietary drivers versions 304.117
and 331.38, and Ubuntu
Found out that brightness control works fine with Nouveau driver, but
not with Nvidia proprietary driver.
** Summary changed:
- Brightness controls are not working in Unity / Xorg.
+ Brightness controls are not working in Unity / Xorg because of Nvidia
proprietary driver.
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** Also affects: nvidia-drivers-ubuntu
Importance: Undecided
Status: New
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Title:
Brightness controls are not working in Unity / Xorg
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