Skip site navigation (1)Skip section navigation (2)
Date:      Wed, 29 Jan 2003 18:47:57 -0800
From:      Terry Lambert <tlambert2@mindspring.com>
To:        Seele Varcuzzo <seele@obso1337.org>
Cc:        freebsd-current@FreeBSD.ORG
Subject:   Re: ACPI recoving issues
Message-ID:  <3E38925D.4CC34541@mindspring.com>
References:  <20030129213210.36faa724.seele@obso1337.org>

next in thread | previous in thread | raw e-mail | index | archive | help
Seele Varcuzzo wrote:
> has anyone had ACPI recovering issues? anytime i go into a S3 suspend
> and try to recover, if im in x the screen tries to recover and sortof
> "melts" before it goes white with color vertical lines, and if im in
> the console i get no video, and it seems to go into a halt.  is this
> a video configuration problem or an acpi configuration problem?

When "suspend" happens, the suspending context needs to signal the
X server to restore the console state, before suspending, and then
put it back, as a result of a "resume".

This is necessary because X writes registers, and doesn't maintain
shadow copies in user space, and so can't put the card back into a
known state.  In many suspend models, the video card is actually
powered off and resets to the default state when it resumes, which
is not the state the X server expects it to be in.

As a workaround, you might be able to set one of the many acpi
sysctl options to prevent the video card from being powered down,
when everything else is (depends on your "suspend" -- if it's a
"suspend to disk", this won't be an option for you).

-- Terry

To Unsubscribe: send mail to majordomo@FreeBSD.org
with "unsubscribe freebsd-current" in the body of the message




Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?3E38925D.4CC34541>