[Bug 423873] Re: screen brightness flickers at login screen

[robertzaccour at gmail.com]

*** This bug is a duplicate of bug 415023 ***
    https://bugs.launchpad.net/bugs/415023

    I figured out a solution that works indefinitely, at least till an
update comes along anyway. Go to applications>settings>Xfce 4 Settings
Manager>Power Management and  all settings for monitor and brightness to
never. So far this has worked, as long as I don't try to adjust the
brightness because that would trigger our little problem again which I don't
wanna do. So until there is a fix this works fine, actually I'll keep my
settings this way just in case. Hope this helps.

On Sat, Oct 31, 2009 at 10:13 AM, mp459 <mickey at srtdata.com> wrote:

> *** This bug is a duplicate of bug 415023 ***
>    https://bugs.launchpad.net/bugs/415023
>
> Same issue here with U100.  The right-mouse-button trick works, but when
> on battery power, screen dims shortly afterwards and screen flicker
> continues.  Have disabled "reduce backlight brightness" and "dim display
> when idles" in power manager -> On Battery Power, and this seems to
> prevent the recurrence of
>
> --
> screen brightness flickers at login screen
> https://bugs.launchpad.net/bugs/423873
> You received this bug notification because you are a direct subscriber
> of a duplicate bug (via bug 415023).
>
> Status in “gnome-power-manager” package in Ubuntu: Confirmed
>
> Bug description:
> When the login screen (gdm) appears the screen of my MSI Wind U100 netbook
> starts to flicker, i.e. the backlight brightness alternates. The brightness
> widget is also shown and its bar goes up and down for 1 step.
>
> When changing the brightness manually using Fn-F4 and Fn-F5 during the
> login screen it keeps on flickering but at a different brightness offset
> then.
>
> After logging in the flickering continues until vigorously changing the
> brightness manually using Fn-F4 and Fn-F5.
>
> After logging out and returning to the login screen it again starts to
> flicker.
>
> My system is running latest Ubuntu Karmic (development branch), release
> 9.10.
>
> I just found bug report 415023 which sounds very similar. But changing the
> brightness fast does not induce the problem for me again. Also, it does not
> stop flickering for me after ~30 seconds like the other report says.
>

-- 
screen brightness flickers at login screen
https://bugs.launchpad.net/bugs/423873
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