Date: Wed, 10 May 2006 16:52:41 -0700 From: Nate Lawson <nate@root.org> To: veiko.palge@uni-konstanz.de Cc: freebsd-acpi@FreeBSD.org Subject: Re: samsung x05 laptop: screen gets very bright before sleep Message-ID: <44627CC9.2040005@root.org> In-Reply-To: <4b4cd5fa0605091444k4202a6dg439570bbafdc6687@mail.gmail.com> References: <4b4cd5fa0605091444k4202a6dg439570bbafdc6687@mail.gmail.com>
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Veiko Palge wrote: > Hi, > > I have a samsung x05 laptop (BIOS Version 11QK, latest ver) and with > FBSD 6.1 acpi works now out of box (given one sets > acpi.hw.reset_video=0). There's one issue though: when the system > goes to sleep to S3, it turns from X to normal console, and then the > (normally black) background of the console turns very, very bright > white, with stripes seen. Is this potentially problematic for the lcd > screen? What might be the issue? Does this occur possibly on other > laptops too? Loading/ unloading acpi_video does not have any effect. LCDs work by having a backlight on all the time and selectively blocking it. So it's likely your LCD turns off before the backlight, showing a screen of all white (actually transparent) before the backlight is also turned off. With the DPMS patch, that might power off the backlight first. -- Nate
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