no video coming out of S3

[Anish Mistry]

On Wednesday 13 June 2007, Nate Lawson wrote:
> Brian Gruber wrote:
> > I'm having trouble bringing my computer out of S3
> > suspend, and am hoping someone may be able to help me.
> >
> > The computer itself successfully comes out of suspend
> > when I press the power button, but the video does not
> > come back. Reading about this i discovered
> > hw.acpi.reset_video, which sounded like exactly what I
> > needed; alas, it did nothing.
> >
> > Reading further mailing lists, I found mention that
> > X's DRI could screw this up. So I set up my computer
> > not to launch X on boot, and rebooted it (since emails
> > seemed to say that once DRI was loaded, there was no
> > undoing its affects without a reboot). Still, the
> > video did not come back.
> >
> > i'm not sure what to do now, or even what details are
> > helpful. I will tell you that I'm using an ATI Radeon
> > QY RV100 7000/VE, and the computer is an IBM NetVista
> > 8307-82U. uname -a:
> > FreeBSD calvin 6.2-RELEASE-p4 FreeBSD 6.2-RELEASE-p4
> > #0: Fri Apr 27 16:11:48 EDT 2007
> > root at calvin:/usr/obj/usr/src/sys/CALVIN  i386
> >
> > Also, I've noted that under windows on this same
> > computer (i have it setup to dual-boot), where S3
> > works fine, I can bring it out of suspend with both
> > the keyboard and mouse (both PS/2) as well as the
> > power button. Probably just an implementation
> > difference, but perhaps important in a way I don't
> > understand.
>
> Try using the radeontool port.  I think you might find some info in
> the acpi@ archives.
>
> I think one solution we should try is to do the various BIOS video
> reset routines after powering up everything again (D3->D0).  At the
> moment, the code runs kind of early since it runs in real mode. 
> We'd have to do it in VM86 mode after the video hw was powered back
> up.
>
> I thought jhb@ once had a DPMS patch that did something like this
> but I dunno.
Google for acpi_video_dpms


-- 
Anish Mistry
amistry at am-productions.biz
AM Productions http://am-productions.biz/
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