samsung x05 laptop: screen gets very bright before sleep

[Nate Lawson]

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