** Changed in: hwe-next
Status: New => Confirmed
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https://bugs.launchpad.net/bugs/1407604
Title:
[Dell Inspiron 7548] Brightness control does not work on 14.04.1
To manage notif
** Changed in: hwe-next
Status: Confirmed => Won't Fix
** Changed in: hwe-next
Assignee: AceLan Kao (acelankao) => (unassigned)
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https://bugs.launchpad.net/bugs/1407604
Title
** Also affects: hwe-next
Importance: Undecided
Status: New
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https://bugs.launchpad.net/bugs/1407604
Title:
[Dell Inspiron 7548] Brightness control does not work on 14.04.1
T
Verified with "acpi_backlight=vendor" parameter added into grub, the
result is the brightness level indicator would only change between max
and max-1, however, the brightness itself does not.
With "acpi_osi='!Windows 2012'" added, the brightness keys are not
working at all.
ubuntu@201408-15450:~$
** Changed in: linux (Ubuntu)
Status: New => Confirmed
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https://bugs.launchpad.net/bugs/1407604
Title:
[Dell Inspiron 7548] Brightness control does not work on 14.04.1
To manage
Also affect 201410-15952 Dell Inspiron 7548
It's an I+A system. Brightness control does not work with the opensoure driver,
and the proprietary fglrx driver.
** Tags added: 201410-15952
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How about passing video.use_native_backlight=1 to kernel, or try
Utopic's 3.16 kernel?
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Title:
[Dell Inspiron 7548] Brightness control does not w
Brightness control works with video.use_native_backlight=1 and 3.16.0-28
Thanks.
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Title:
[Dell Inspiron 7548] Brightness control does not work on
** Changed in: linux (Ubuntu)
Assignee: Anthony Wong (anthonywong) => AceLan Kao (acelankao)
** Changed in: hwe-next
Assignee: (unassigned) => AceLan Kao (acelankao)
** Changed in: hwe-next
Importance: Undecided => Medium
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** Changed in: linux (Ubuntu)
Status: Confirmed => Won't Fix
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Title:
[Dell Inspiron 7548] Brightness control does not work on 14.04.1
To
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