Date: Thu, 13 Mar 2003 12:15:02 +0100 From: Jacques Caron <Jacques.Caron@IPsector.com> To: Christoph Kukulies <kuku@physik.rwth-aachen.de> Cc: freebsd-mobile@FreeBSD.ORG Subject: Re: Dell, Nvidia Geforce2Go, APM, display faint Message-ID: <5.2.0.9.0.20030313121050.03540da8@pop.mail.yahoo.com> In-Reply-To: <200303131100.h2DB0TL14839@accms33.physik.rwth-aachen.de>
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Hi,
As far as I know this is a physical problem on the I8000. I had the issue
on mine, I don't know if it comes from the backlight itself or from the
inverter board that supplies the power to the backlight, but it's one of
those. Reducing the brightness can make the problem come less often, and
there are a number of things to "restore" at least temporarily the problem:
connect/disconnect the AC adapter, switch to external screen and back...
(anything that will change the software-controlled brightness, really).
The problem should appear on other OSes too, though different APM handling
of screen brightness may have different consequences.
Jacques.
At 12:00 13/03/2003, Christoph Kukulies wrote:
>Strange, I'm only observing this, when I run FreeBSD on my notebook.
>(I have other OSs on it, Redhat Linux 7.1, Windows ME, Windows 2000 Pro)
>
>When I leave my Dell Inspiron 8000, 1600x1200 display, 1Ghz P IV,
>Nvidia GeForce2Go, with X11 (xdm) on and unattended for a while and then come
>back (after an hour or so), the screen is quite irregularly darkened.
>It first looks like a blanked screen, but looking closer, the left half
>of the screen is quite dark and from the middle on to the right it's a bit
>less dark, xterm and graphics is recognizable but very faint.
>
>Powercycling the notebook doesn't cure the problem.
>
>Could it be an overheating problem (Nvidia driver)?
>
>I have switched off the notebook for 10 minutes now and after having
>launched this message I will turn back to it and try to get normal brightness
>again (BIOS?).
>
>
>--
>Chris Christoph P. U. Kukulies kukulies@rwth-aachen.de
>
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-- Jacques Caron, IP Sector Technologies
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