Date: Sat, 13 May 2006 21:53:04 +0100 From: "Veiko Palge" <veiko.palge@gmail.com> To: "Nate Lawson" <nate@root.org> Cc: freebsd-acpi@freebsd.org Subject: Re: samsung x05 laptop: screen gets very bright before sleep Message-ID: <4b4cd5fa0605131353s6119533aya4547625e45b1a9@mail.gmail.com> In-Reply-To: <44627CC9.2040005@root.org> References: <4b4cd5fa0605091444k4202a6dg439570bbafdc6687@mail.gmail.com> <44627CC9.2040005@root.org>
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Hey, I tried this patch then http://people.freebsd.org/~jhb/patches/acpi_video_dpms.patch ---hope that's what you meant--- but no change. thanks for the infos thoug= h. best, Veiko -- On 5/11/06, Nate Lawson <nate@root.org> wrote: > 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=3D0). 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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