Date: Wed, 13 Jun 2007 00:11:30 -0700 From: Nate Lawson <nate@root.org> To: Brian Gruber <knightbg@yahoo.com> Cc: freebsd-acpi@freebsd.org Subject: Re: no video coming out of S3 Message-ID: <466F98A2.3010800@root.org> In-Reply-To: <807070.64626.qm@web32411.mail.mud.yahoo.com> References: <807070.64626.qm@web32411.mail.mud.yahoo.com>
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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@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. -- Nate
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