Ubuntu
gnome-power-manager package

Brightness controls do not work

Bug #67074 reported by tom llewellin on 2006-10-20

This bug report is a duplicate of: Bug #65028: doesn't dim screen on SONY VAIO (vgn FS215M / Z1 RMP) (regression). Edit Remove

Affects		Status	Importance	Assigned to	Milestone
	gnome-power-manager (Ubuntu)	New	Undecided	Unassigned

Bug Description

Binary package hint: gnome-power-manager

On a Sony FJ170 laptop, none of the sliders to adjust brightness under GPM work under Edgy. They previously worked fine under Dapper, and other battery-related information still displays properly. The sonypi module is loaded properly, just as it was beforehand, and there hasn't been anything incriminating that's shown up in dmesg.

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Pedro Martinez-Julia (pedromj) wrote on 2006-10-20: Re: [Bug 67074] Brightness controls do not work

I've got a Sony Vaio FS285M (European code for FS660W) and my girlfriend
has a Sony Vaio FJ1S (European code for FJ170).

In both sonypi is loaded but isn't needed. I've read that new Vaios
doesn't have the special controller (chip) that uses "sonypi", they have
all through ACPI and only is needed "sony-acpi" module (FN goes through
ACPI and keyboard). This is applicable at least to FS and FJ series.

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Nicolas DERIVE (kalon33) wrote on 2006-10-20:

Is your bug related with bug #65028 ? Because in this case we can link them as a general problem with different models of Sony laptop, and mark this bug as a duplicate of the other (I can do that immediately, but I prefer tell you of it before).

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tom llewellin (tom-llewellin) wrote on 2006-10-22: Re: [Bug 67074] Re: Brightness controls do not work

Yes, it looks like this one and #65028 are the same.

On Fri, 2006-20-10 at 17:11 +0000, Nicolas DERIVE wrote:
> Is your bug related with bug #65028 ? Because in this case we can link
> them as a general problem with different models of Sony laptop, and mark
> this bug as a duplicate of the other (I can do that immediately, but I
> prefer tell you of it before).
>

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Andrew Chadwick (achadwick) wrote on 2006-11-02:

On a Vaio VGN-B3XP at least, this a dup of bug #65028. Fixing /bin/sh to be a symlink to /bin/bash cures this problem for me and my sliders work again (and the backlight dims when I unplug).