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    SubjectRe: thinkpad suspend to ram and backlight
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    Date
    Hi,

    On Tue, 2005-10-04 at 14:03 +0200, Pavel Machek wrote:

    > > When eying the display precisely it seems to be switched off for a short
    > > moment once the system enters S3 but then gets turned on again.
    >
    > Yes, same with radeonfb here.
    >
    > I use
    >
    > #!/bin/bash
    > radeontool light off
    > echo 3 > /proc/acpi/sleep
    > radeontool light on

    Well, if we're already discussing workarounds which shouldn't be needed.
    With ibm_acpi loaded this should help:

    #!/bin/bash
    echo lcd_disable > /proc/acpi/ibm/video
    echo 3 > /proc/acpi/sleep
    echo lcd_enable > /proc/acpi/ibm/video

    > ...and it works most of the time. Sometimes screen is corrupted after
    > resume, another suspend/resume cycle cures that. (Strange!)

    I haven't encountered screen corruption until now.

    > Pavel

    Timo

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