** Changed in: linux
Status: Incomplete = Expired
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https://bugs.launchpad.net/bugs/377353
Title:
backlight not appearing in sysfs nor laptop_panel in lshal for sony
vaio fz
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)
** Changed in: linux (Ubuntu)
Status: New = Confirmed
** Tags added: b73a1py79
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Title:
backlight not appearing in sysfs nor laptop_panel
** Changed in: linux
Importance: Unknown = Medium
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Title:
backlight not appearing in sysfs nor laptop_panel in lshal for sony
vaio fz
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** Tags added: acpi-apic
** Tags added: acpi-brightness
** Tags added: acpi-throttling
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Title:
backlight not appearing in sysfs nor
** Tags added: jaunty
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backlight not appearing in sysfs nor laptop_panel in lshal for sony vaio fz
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** Changed in: nvidia-graphics-drivers-180 (Ubuntu)
Status: Incomplete = Confirmed
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backlight not appearing in sysfs nor laptop_panel in lshal for sony vaio fz
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Doesn't work for me, no change
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backlight not appearing in sysfs nor laptop_panel in lshal for sony vaio fz
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Can you try adding this line:
Option RegistryDwords EnableBrightnessControl=1
to your /etc/X11/xorg.conf at the bottom of the device section? It's not
something we can globally enable but it does fix many issues similar to
this.
** Changed in: nvidia-graphics-drivers-180 (Ubuntu)
Status:
** Changed in: linux (Ubuntu)
Status: Incomplete = New
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backlight not appearing in sysfs nor laptop_panel in lshal for sony vaio fz
https://bugs.launchpad.net/bugs/377353
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This bug report was marked as Triaged a while ago but has not had any
updated comments for quite some time. Please let us know if this issue
remains in the current Ubuntu release,
http://www.ubuntu.com/getubuntu/download . If the issue remains, click
on the current status under the Status column
** Description changed:
There is no backlight files in my sysfs. I've already reported a bug in
hal https://bugs.launchpad.net/ubuntu/+source/hal/+bug/345531
But I think to have understood that I get no laptop_panel from lshal
because the kernel is not supporting properly my
** Tags added: karmic
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backlight not appearing in sysfs nor laptop_panel in lshal for sony vaio fz
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I could read on the internet, that sony is using an unconventional way
for backlight support, it is using directly the nvidia chip to do so...
I hope this can help...
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backlight not appearing in sysfs nor laptop_panel in lshal for sony vaio fz
https://bugs.launchpad.net/bugs/377353
You
Upstream, the kernel team is saying that it is a platform driver issue
or bios... sony is not supporting linux, so I think the only way to have
it fix before 2050 is to bring the nvidia driver to manage backlight
(also in /sys and /proc) so adding nvidia pkg to the report...
** Also affects:
** Changed in: linux
Status: New = Incomplete
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backlight not appearing in sysfs nor laptop_panel in lshal for sony vaio fz
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Setting this to Triaged, but please continue to work with the upstream
developers as you've already been doing. Just in case it may help,
Ubuntu does provide mainline kernel builds available for testing, see
https://wiki.ubuntu.com/KernelMainlineBuilds . Thanks.
** Changed in: linux (Ubuntu)
** Changed in: linux
Status: Confirmed = Incomplete
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backlight not appearing in sysfs nor laptop_panel in lshal for sony vaio fz
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** Bug watch added: Linux Kernel Bug Tracker #13477
http://bugzilla.kernel.org/show_bug.cgi?id=13477
** Also affects: linux via
http://bugzilla.kernel.org/show_bug.cgi?id=13477
Importance: Unknown
Status: Unknown
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backlight not appearing in sysfs nor laptop_panel in lshal for
** Changed in: linux
Status: Unknown = Confirmed
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backlight not appearing in sysfs nor laptop_panel in lshal for sony vaio fz
https://bugs.launchpad.net/bugs/377353
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** Attachment added: BootDmesg.txt
http://launchpadlibrarian.net/26823176/BootDmesg.txt
** Attachment added: CurrentDmesg.txt
http://launchpadlibrarian.net/26823177/CurrentDmesg.txt
** Attachment added: Dependencies.txt
http://launchpadlibrarian.net/26823178/Dependencies.txt
**
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