** Changed in: linux (Ubuntu Precise)
Status: Confirmed = Invalid
** Changed in: linux (Ubuntu Natty)
Status: Confirmed = Invalid
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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.
This change has been made by an automated script, maintained by the
Ubuntu Kernel Team.
** Changed in: linux (Ubuntu)
I confirm this bug on a laptop Samsung RV520.
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Title:
[Lenovo T420s] Brightness keys make the indicator work, but don't
actually dim or
I'm seeing the exact same issue on my T61. Adding the
EnableBrightnessControl=1 line to the Screen section of xorg.conf
appears to fix it.
Is it possible to enable the T420-quirks for T61 and R61 as well?
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Same problem in precise with nvidia-current 295.40 on Thinkpad R61.
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Title:
[Lenovo T420s] Brightness keys make the indicator work, but don't
It is not fixed for me.
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Title:
[Lenovo T420s] Brightness keys make the indicator work, but don't
actually dim or brighten the screen
To
** Also affects: nvidia-common (Ubuntu)
Importance: Undecided
Status: New
** Changed in: nvidia-common (Ubuntu)
Status: New = Triaged
** Changed in: nvidia-common (Ubuntu)
Assignee: (unassigned) = Alberto Milone (albertomilone)
** Changed in: nvidia-common (Ubuntu)
This bug was fixed in the package nvidia-common - 1:0.2.40
---
nvidia-common (1:0.2.40) precise; urgency=low
* Add quirks to get brightness keys to work on Lenovo T420s
(LP: #773710) and on Dell Latitude E6530 (LP: #914069)
when using NVIDIA's proprietary driver.
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** Branch linked: lp:ubuntu/nvidia-common
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Title:
[Lenovo T420s] Brightness keys make the indicator work, but don't
actually dim or brighten
** Tags added: blocks-hwcert-enablement
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Title:
[Lenovo T420s] Brightness keys make the indicator work, but don't
actually dim or brighten the
Hi this bug affects also my HP DV6-6030el after a bios update 2 days
ago. The previous one was F.06 version, the new one is F.1A. Can you
check your bios version please?
There is no way to control the backlight, it is set at maximum level. I
'm running with ubuntu 11.04 and kernel
Ps: solution #5 doesn't work for me. I create the xorg.conf file using
sudo Xorg -configure in recovery mode. It give me a long xorg file and I
add the line Option RegistryDwords
EnableBrightnessControl=1 under intel device section.
What is wrong? this my xorg:
Section ServerLayout
I have the same issue on a lenovo W510 and I can confirm that comment #5
works for my laptop
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Title:
[Lenovo T420s] Brightness keys make the
On a Lenovo 420s, running Natty (2.6.38-8-generic (64bit), xorg-server
2:1.10.1-1ubuntu1.1, NVIDIA dlloader X Driver 270.41.06 Mon Apr 18
14:55:25 PDT 2011), I can switch to a console (Ctrl-Shift-F1) and change
the brightness there.
Using Fn+Home/End (brightness up/down) changes the brightness
I have the identical problem on the Dell Vostro 3300 with Geforce 310M.
It used to work fine in 10.10.
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Title:
[Lenovo T420s] Brightness keys
The solution from comment #5 works for me.
Option RegistryDwords EnableBrightnessControl=1
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Title:
[Lenovo T420s] Brightness keys make the
** Tags removed: blocks-hwcert
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Title:
[Lenovo T420s] Brightness keys make the indicator work, but don't
actually dim or brighten the screen
Jeff: Does adding
Option RegistryDwords EnableBrightnessControl=1
to the device section in your /etc/X11/xorg.conf fix it?
Robert, I'm no longer up in the Lexington lab so I can't get hands on
the machine. I'm adding Marc Legris to this as he is The Man for the
lab up there.
Marc, when you
** Changed in: linux (Ubuntu)
Assignee: Chris Van Hoof (vanhoof) = Robert Hooker (sarvatt)
** Tags added: hwe-blocker
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Title:
[Lenovo
Jeff: Does adding
Option RegistryDwords EnableBrightnessControl=1
to the device section in your /etc/X11/xorg.conf fix it?
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Title:
[Lenovo
I confirm the same issue with a Lenovo W510.
A similar problem exists with Mavrick 10.10. But with Mavrick I can switch to a
console (using Ctrl+Alt+f5) and reduce the brightness using the function keys
then. Whereas this trick doesn't work with Natty.
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Just tried the suggestion in note #5, and so far it works, but can't be sure as
the problem is inconsistent.
(Of course had the create the xorg.conf file, as it doesn't exist.)
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CORRECTION: Suggestion in note#5 does NOT work after I suspend then
awake my laptop.
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Title:
[Lenovo T420s] Brightness keys make the indicator
Ok, I have found temporary solution.
In grub i have the following line:
...
linux /boot/vmlinuz-2.6.38-9-generic-pae
root=UUID=b0da63e6-8a8d-4671-bb75-cd25c00f6585 ro vga=792 quiet splash
nomodeset video=uvesafb:mode_option=1440x900-24,mtrr=3,scroll=ywrap vt.handoff=7
If I change it
I confirm his on lenovo T510
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Title:
[Lenovo T420s] Brightness keys make the indicator work, but don't
actually dim or brighten the screen
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I confirm this bug on a laptop Dell Vostro 3700.
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Title:
[Lenovo T420s] Brightness keys make the indicator work, but don't
actually dim or
** Changed in: linux (Ubuntu Natty)
Status: New = Confirmed
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Title:
[Lenovo T420s] Brightness keys make the indicator work, but don't
** Changed in: linux (Ubuntu)
Status: New = Confirmed
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Title:
[Lenovo T420s] Brightness keys make the indicator work, but don't
actually
Chris, can you have a look, please?
** Changed in: linux (Ubuntu)
Importance: Undecided = Medium
** Changed in: linux (Ubuntu)
Assignee: (unassigned) = Chris Van Hoof (vanhoof)
** Also affects: linux (Ubuntu Natty)
Importance: Undecided
Status: New
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** Tags added: blocks-hwcert
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Title:
[Lenovo T420s] Brightness keys make the indicator work, but don't
actually dim or brighten the screen
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Title:
[Lenovo T420s] Brightness keys make the indicator work, but don't
actually dim or brighten the screen
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