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Message #130369
[Bug 1483366] [NEW] Lenovo E540: Brightness control does not work
Public bug reported:
After last Ubuntu updates, brightness control buttons stopped to work,
brightness is stuck on maximum. When pressing key to reduce brightness,
indicator shows up as it should, but doesn't let to reduce the indicator
any step lower. Running Ubuntu 14.04 LTS.
** Affects: linux (Ubuntu)
Importance: Undecided
Status: New
** Description changed:
After last Ubuntu updates, brightness control buttons stopped to work,
brightness is stuck on maximum. When pressing key to reduce brightness,
indicator shows up as it should, but doesn't let to reduce the indicator
- any step lower.
+ any step lower. Running Ubuntu 14.04 LTS.
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https://bugs.launchpad.net/bugs/1483366
Title:
Lenovo E540: Brightness control does not work
Status in linux package in Ubuntu:
New
Bug description:
After last Ubuntu updates, brightness control buttons stopped to work,
brightness is stuck on maximum. When pressing key to reduce
brightness, indicator shows up as it should, but doesn't let to reduce
the indicator any step lower. Running Ubuntu 14.04 LTS.
To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1483366/+subscriptions
Follow ups
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[Bug 1483366] Re: Lenovo E540: Brightness control does not work
From: Launchpad Bug Tracker, 2015-11-12
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[Bug 1483366] Re: Lenovo E540: Brightness control does not work
From: Christopher M. Penalver, 2015-09-12
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[Bug 1483366] Re: Lenovo E540: Brightness control does not work
From: Joseph Salisbury, 2015-08-12
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[Bug 1483366] WifiSyslog.txt
From: Toni Leino, 2015-08-10
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[Bug 1483366] UdevLog.txt
From: Toni Leino, 2015-08-10
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[Bug 1483366] UdevDb.txt
From: Toni Leino, 2015-08-10
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[Bug 1483366] RfKill.txt
From: Toni Leino, 2015-08-10
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[Bug 1483366] PulseList.txt
From: Toni Leino, 2015-08-10
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[Bug 1483366] ProcModules.txt
From: Toni Leino, 2015-08-10
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[Bug 1483366] ProcInterrupts.txt
From: Toni Leino, 2015-08-10
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[Bug 1483366] ProcEnviron.txt
From: Toni Leino, 2015-08-10
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[Bug 1483366] ProcCpuinfo.txt
From: Toni Leino, 2015-08-10
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[Bug 1483366] Lsusb.txt
From: Toni Leino, 2015-08-10
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[Bug 1483366] Lspci.txt
From: Toni Leino, 2015-08-10
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[Bug 1483366] IwConfig.txt
From: Toni Leino, 2015-08-10
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[Bug 1483366] CurrentDmesg.txt
From: Toni Leino, 2015-08-10
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[Bug 1483366] CRDA.txt
From: Toni Leino, 2015-08-10
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[Bug 1483366] BootDmesg.txt
From: Toni Leino, 2015-08-10
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[Bug 1483366] Re: Lenovo E540: Brightness control does not work
From: Toni Leino, 2015-08-10
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[Bug 1483366] Missing required logs.
From: Brad Figg, 2015-08-10