I also have this issue with Thinkpad T60P.
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[Lucid] Laptop only remains DPMS off for 2 seconds
https://bugs.launchpad.net/bugs/447728
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This still happens on Ubuntu 14.04 64 bit. I am using Thinkpad T440S.
The following workaround works for me:
http://askubuntu.com/questions/151651/brightness-is-reset-to-maximum-on-
every-restart
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After recovering from screen dimming, the brightness is set set maximum
for my case. For this problem, I follow the instructions in
https://wiki.ubuntu.com/Kernel/Debugging/Backlight. After adding
"acpi_backlight=vendor" kernel parameter, the problem is fixed.
But during the boot of Ubuntu, I stil
I also have this problem. I am using Ubuntu 14.04 64 bit with a Thinkpad
T440S.
At the beginning, I have the following four problems:
1. After every boot, the brightness is set to maximum.
2. The brightness can't be adjusted smoothly. Only 4 brightnesses can be
achieved with Fn keys.
3. After re
Public bug reported:
At the beginning, I have the following four problems:
1. After every boot, the brightness is set to maximum.
2. The brightness can't be adjusted smoothly. Only 4 brightnesses can be
achieved with Fn keys.
3. After recovering from dimming, the brightness is set to maximum.
4.
** Description changed:
At the beginning, I have the following four problems:
1. After every boot, the brightness is set to maximum.
2. The brightness can't be adjusted smoothly. Only 4 brightnesses can be
achieved with Fn keys.
- 3. After recovering from dimming, the brightness is set t
Since I can't correct my typo, I add my comment one more time.
With the use of v3.18-rc3-vivid, the following problems still exist:
1. After every boot, the brightness is set to maximum.
2. The brightness can't be adjusted smoothly. Only 4 brightnesses can be
achieved with Fn keys.
3. After reco
With the use of , the following problems still exists:
1. After every boot, the brightness is set to maximum.
2. The brightness can't be adjusted smoothly. Only 4 brightnesses can be
achieved with Fn keys.
3. After recovering from dimming, the brightness is set to maximum.
4. The following error
Please ignore my #4 and #5 comments.
With the use of v3.18-rc3-vivid, for the following problems:
1. After every boot, the brightness is set to maximum.
2. The brightness can't be adjusted smoothly. Only 4 brightnesses can be
achieved with Fn keys.
3. After recovering from screen dimming and sy
I don't know which tag I should add since not all of my problems are
fixed by v3.18-rc3-vivid.
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https://bugs.launchpad.net/bugs/1388817
Title:
Backlight brightness problem with Thinkpad
Public bug reported:
During the boot, the following message shows up:
[ 12.448192] thinkpad_acpi: Unsupported brightness interface, please
contact ibm-acpi-de...@lists.sourceforge.net
I am using Ubuntu 14.04 64 bit.
ProblemType: Bug
DistroRelease: Ubuntu 14.04
Package: linux-image-3.13.0-39-g
Public bug reported:
The brightness I have set is not saved across reboot. After every boot,
the brightness is set to maximum.
ProblemType: Bug
DistroRelease: Ubuntu 14.04
Package: linux-image-3.13.0-39-generic 3.13.0-39.66
ProcVersionSignature: Ubuntu 3.13.0-39.66-generic 3.13.11.8
Uname: Linux
Public bug reported:
The brightness is set to maximum after recovering from the following two
cases:
1) Recovering from system suspend.
2) Recovering from screen dimming.
ProblemType: Bug
DistroRelease: Ubuntu 14.04
Package: linux-image-3.13.0-39-generic 3.13.0-39.66
ProcVersionSignature: Ubuntu
v3.18-rc3-vivid build does not fix this problem.
** Tags added: kernel-bug-exists-upstream
** Changed in: linux (Ubuntu)
Status: Incomplete => Confirmed
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v3.18-rc3-vivid build does not solve this problem.
** Changed in: linux (Ubuntu)
Status: Incomplete => Confirmed
** Tags added: kernel-bug-exists-upstream
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v3.18-rc3-vivid build fixes this bug.
** Changed in: linux (Ubuntu)
Status: Incomplete => Confirmed
** Tags added: ernel-fixed-upstream
** Tags removed: ernel-fixed-upstream
** Tags added: kernel-fixed-upstream
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v3.18-rc3-vivid build fixes this bug.
** Tags added: kernel-fixed-upstream
** Changed in: linux (Ubuntu)
Status: Incomplete => Confirmed
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https://bugs.launchpad.net/bugs/1388817
The problem is also reported on http://askubuntu.com/questions/524524
/brightness-is-reset-to-maximum-after-waking-up-from-suspend-or-lock-
screen
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Me too:
Brightness is set to maximum after a reboot or after waking up from a
suspend.
Model: Thinkpad T440S
Ubuntu: 14.04 64 bit
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https://bugs.launchpad.net/bugs/35223
Title:
Happens to me when I doing update with ubuntu 12.04.
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https://bugs.launchpad.net/bugs/804943
Title:
blcr kernel module failed to build with kernel 3.0 : configure: error:
--with-linux
Public bug reported:
Binary package hint: kvm
I have installed an ubuntu hardy server with virt-manager on ubuntu
10.04 desktop host. The guest os is rebooted after the installation.
But, the guest os can't be started up. The following message is shown in
console.
Starting SeaBIOS
Booting from
** Attachment added: "Dependencies.txt"
https://bugs.launchpad.net/bugs/622077/+attachment/1509899/+files/Dependencies.txt
** Attachment added: "ExtensionSummary.txt"
https://bugs.launchpad.net/bugs/622077/+attachment/1509900/+files/ExtensionSummary.txt
** Attachment added: "profile_defa
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