Date: Mon, 14 Nov 2005 11:22:10 -0800 From: "Kevin Oberman" <oberman@es.net> To: Jacques Garrigue <garrigue@math.nagoya-u.ac.jp> Cc: freebsd-stable@freebsd.org, freebsd-mobile@freebsd.org Subject: Re: IBM T42 freezes when going to sleep under X11 Message-ID: <20051114192211.2BB4F5D04@ptavv.es.net> In-Reply-To: Your message of "Mon, 14 Nov 2005 17:50:31 %2B0900." <20051114.175031.93019232.garrigue@math.nagoya-u.ac.jp>
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> Date: Mon, 14 Nov 2005 17:50:31 +0900 (JST) > From: Jacques Garrigue <garrigue@math.nagoya-u.ac.jp> > Sender: owner-freebsd-mobile@freebsd.org > > I've got a strange problem with my IBM T42 / Radeon M10 setup. > > When using the 6.0-RELEASE kernel (including GENERIC), I cannot go to > sleep when X11 is running: the machine freezes, display still on. I > tried disabling DRI, but this does not seem to be the problem: I have > no DRM anyway. > > On the other hand, everything works fines with a 6.0-RC1 kernel. > Was there a big change in between, such that I need to change my > configuration? > > I can give more information if it helps. First, you really want to install and use radeontool. It can properly turn off the Radeon display, backlight, and DAC which (as far as i know) xorg does not. It also does better than jhb's patch to acpi_video. (I suspect that the patch does not turn off the DAC.) You need to add acpi_video_load="YES" and probably want to add vesa_load="YES" and acpi_ibm_load="YES", although those are probably not related to your current problem. You may also need to add hw.acpi.reset_video=0 and hw.syscons.sc_no_suspend_vtswitch=1 to /etc/sysctl.conf. -- R. Kevin Oberman, Network Engineer Energy Sciences Network (ESnet) Ernest O. Lawrence Berkeley National Laboratory (Berkeley Lab) E-mail: oberman@es.net Phone: +1 510 486-8634
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