https://bugs.launchpad.net/ubuntu/+source/linux/+bug/743352/comments/60
** Changed in: linux (Ubuntu)
Status: Incomplete => Won't Fix
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This bug was filed against a series that is no longer supported and so
is being marked as Won't Fix. If this issue still exists in a supported
series, please file a new bug.
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** Changed in: linux
Status:
Mike, 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 provide the information following
https://wiki.ubuntu.com/Kernel/Debugging/Backlight#Report_Minimum_Requirements
?
As well, could you plea
confirm working on 11.10 without specific configuration except:
ppa kubuntu-beta and kubuntu-backports enabled to provide kde4.8RC
macbook santarosa 4.1, Intel GM965/GL960
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FYI. I'm not sure about 11.10. But at least 12.04 has fixed this issue.
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Title:
LCD backlight doesn't respond to brightness control keys
To manag
I installed 11.10 beta as an upgrade to 11.04 where I made some changes,
so my current platform is not a good test subject. Will install 11.10
fresh when I figure out how to upgrade to Lion and preserve my other two
OSes at the same time.
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@Mike and others
Can you test the latest release of 11.10 and confirm the issue is
resolved without any special configuration?
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Title:
LCD backli
macbook 4.1 santa rosa (intel graphics) brightness adjustment seems to
work fine again with 64bit kubuntu 11.10 since a few weeks without
special configuration. nice job.
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how can one describe happines in simple words!
* Installed the apple-bl-dkms package form the ppa above
* load the new module ,
and brighness settings work!!
and im in EFI mode on my macbok 5.1
with one of my gpu:s disabled!
joy
:)
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apple-bl-dkms from here has resolved my issue:
https://launchpad.net/~alexmurray/+archive/ppa
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Title:
LCD backlight doesn't respond to brightness
Follow-up from prev post: you might want to switch off the maverick
repository again afterwards! and 'reload' the software lists.
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Title:
LCD back
I had the following problems (mbp6,2 + ubuntu 11.04):
no backlight control
no notifier-popup which usually shows that pommed is running/working
Then I noticed that (the standard) nvidia_bl was not loaded. I loaded it with
sudo modprobe nvidia_nl.
Now the pop-up (on the upper righthand side of th
Hoping this will help
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Title:
LCD backlight doesn't respond to brightness control keys
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AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.23.
Architecture: amd64
AudioDevicesInUse:
USERPID ACCESS COMMAND
/dev/snd/controlC0: noah 2940 F pulseaudio
CRDA: Error: command ['iw', 'reg', 'get'] failed with exit code 1: nl80211 not
found.
Card0.Amixer.inf
No joy.
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Title:
LCD backlight doesn't respond to brightness control keys
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I'm going to build a 2.3.39 kernel with this patch and report back:
http://ubuntuforums.org/showpost.php?p=10685211&postcount=230
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Title:
LCD bac
What really chaps my ass is this worked immediately after install, but
failed after a dist-upgrade so it must be a regression somewhere.
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Title:
L
Yep, wasted two days trying to figure out what broke it. So far I have
tried:
- Installing all the natty mactel ppa debs
- Uninstalling all the natty mactel ppa debs
- Adding Option "RegistryDwords" "EnableBrightnessControl=1" to my Device
section
- Installed pommed
- Downgrading g-p-m
- Kernel
Ahh whoops just saw its 8,2 which has an ATI GPU instead - ignore my
comments.
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Title:
LCD backlight doesn't respond to brightness control keys
T
@derp herp - make sure you don't have the nvidia_bl driver installed -
instead I think you just need the mbp_nvidia_bl which comes with the
standard kernel - if you have both, then the nvidia_bl conflicts and
stops the mbp_nvidia_bl working correctly - uninstall nvidia_bl and then
reboot and see if
Seeing this too on 11.04 and MBP 8,2. I could have sworn the backlight
worked right after install, then never since.
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Title:
LCD backlight doesn'
on intel this problem still exists, not sure if the nvidia results would
have any effect anyway.
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Title:
LCD backlight doesn't respond to brightne
I fixed this too (on MBP6,2 with 64bit 11.04). I just have installed the
mbp-nvidia-bl-dkms from the PPA archive from Maverick series after
removed the nvidia-bl-dkms (apt-get install -t=maverick mbp-nvidia-bl-
dkms) without any modifications in the xorg.conf file.
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I fixed this (on MBA3,2 with 64bit 11.04). I had the nvidia-bl-dkms
package installed. Uninstalled, added the control lines to xorg.conf (as
suggested above) and loaded the mbp_nvidia_bl module from
2.6.38-8-generic.
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I have the same issue on a MacBookPro5,2. The brightness adjustments
only work when I use 'pommed', but 'pommed' does not provide an
indicator. Since I want the full effects (brightness working and
indicator working), I followed the tips here and still no joy.
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macbook 3,1 santa rosa:
keys work.
slider pops up.
/sys/.../brightness changes as expected (or can be changed manually).
but nothing happens to the brightness. this is intel GM965/GL960.
any other way to approach this?
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@Jonas - For your touchpad remark, take a look at bug #240738
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Title:
LCD backlight doesn't respond to brightness control keys
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For the record: I just made a quick test compiling the Maverick
mbp_nvidia_bl package on my vanilla Natty MBP 6,1 and correctly finds
the device now. However, as soon as I tried to adjust the level (F1) the
screen went black and I had no way to get it sane again. I didn't have
time to look deeper (
Update: Machines up to MacBookAir 2,1 and MacBook Pro 5,5 are supported
by maverick's default mbp_nvidia_bl. The X-Org Option "RegistryDwords"
"EnableBrightnessControl=1" might be necessary on some machines. Please,
always check by writing to
/sys/class/backlight/mbp_backlight/brightness, because f
I suggest finding a temporary setup where the backlight control works,
in which the nvidia driver is not installed, and then looking at "lsmod
| grep _bl" or the contents of /sys/class/backlight/ which should hint
at the module name that controls it. We can't blame the nvidia driver if
the backligh
With respect to the "No such device" error, please note that the
upstream 2.6.38 version of mbp_nvidia_bl does not support more recent
machines such as the MBP6,2. An updated package has always been
available in the Mactel PPA for maverick. I didn't upload a natty
package yet, because the driver h
Same here:
$ sudo modprobe mbp_nvidia_bl
FATAL: Error inserting mbp_nvidia_bl
(/lib/modules/2.6.38-8-generic/kernel/drivers/video/backlight/mbp_nvidia_bl.ko):
No such device
$
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Is this module specific to certain MacBook hardware. With MacBookPro6,2
it complains that I have "No such device". The xorg.conf setting
described above also has no effect on my MBP6,2.
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h
** Also affects: mactel-support
Importance: Undecided
Status: New
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Title:
LCD backlight doesn't respond to brightness control keys
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The /sys/class/backlight/* folder will be populated by having the right
kernel module loaded. Try:
sudo modprobe mbp_nvidia_bl
to load the Apple-specific backlight driver.
To see the other drivers available do:
ls /lib/modules/`uname -r`/kerne
My /sys/class/backlight/ directory has no further items such as a
mbp_backlight subfolder:
$ sudo ls -aFl /sys/class/backlight/
total 0
drwxr-xr-x 2 root root 0 2011-04-23 02:21 ./
drwxr-xr-x 49 root root 0 2011-04-23 02:21 ../
$
I tested it and the hack doesn't work for me. I modified
/etc/X11/
** Changed in: linux (Ubuntu)
Status: New => Confirmed
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Title:
LCD backlight doesn't respond to brightness control keys
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This hack fixes the bug for me (in /etc/X11/xorg.conf):
Section "Device"
Identifier "Default Device"
Option "RegistryDwords" "EnableBrightnessControl=1"
EndSection
Now the control keys work, the notification bubble works and even direct
control writing to /sys/class/
It is very similar. And I'll have to double-check, but I think my
notifications stopped working too. Might be since I started using the
Nvidia driver since the packaged one caused frequent system lock-ups.
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Possibly there is some interest here for the similar bug #726692
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Title:
LCD backlight doesn't respond to brightness control keys
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With the Macbook Air, you can take X out of the equation and reproduce
the issue directly with the kernel by echoing various values into
/sys/class/backlight/mbp_backlight/brightness
With the Nvidia driver active, doing so does nothing just like the
brightness keys on the keyboard. Removing the Nv
This also happens on a Macbook Air 3,1 after installing the Nvidia
driver. The backlight /did/ work before installing the Nvidia driver,
when using the default vesa driver for xorg.
Reproduced with natty beta-1 and beta-2 (nvidia-current =
270.41.03-0ubuntu1).
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This bug also affects me running 11.04 beta on a Macbook Pro 5,5
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Title:
LCD backlight doesn't respond to brightness control keys
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** Package changed: xserver-xorg-input-evdev (Ubuntu) => linux (Ubuntu)
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Title:
LCD backlight doesn't respond to brightness control keys
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** Package changed: xorg (Ubuntu) => xserver-xorg-input-evdev (Ubuntu)
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Title:
LCD backlight doesn't respond to brightness control keys
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Title:
LCD backlight doesn't respond to brightness control keys
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