After a fresh install of squeeze, the laptop suspends if I close the lid or tell gnome to suspend (the power button starts blinking). When I press the power button to wake it back up, it stops blinking, but the screen stays blank, and I can't ssh into the computer and nmap -sn doesn't see it. To see if the problem was related to video, I tried pm-suspend from single-user mode, and I see the same symptoms. I added "export PM_DEBUG=true" to /usr/lib/pm-utils/pm-functions; pm-suspend.log is attached. There is some evidence of using --quirk-s3-mode there, but I think that's just because I tried running pm-suspend with that flag once. (While trying to debug this I applied the patch from bug 561877, so you might see evidence of that too. I kept the patch because it looks harmless.) I also attached output of lspci and dmesg from just now. Thanks!
seems to fix everything except the video: after resuming, I can ssh into the machine, and if I started in text mode, I can continue typing commands, but the screen is blank. I think my X session ends after I resume, but I'm not sure. I played with the quirks in 1.4.1: I tried --quirk-vbe-post, --quirk-vga-mode-3, --quirk-s-3-bios and --quirk-s3-mode together, and --quirk-bvestate-restore and --quirk-vbemode-restore together. I also tried turning off SpeedStep in the bios. Another thing I tried was installing the latest version of uswsusp, installed from source from http://suspend.sourceforge.net/download.shtml, and had similar results: the machine wakes up, but the screen is blank. I guess the next things to try are a newer kernel and contacting someone upstream; not sure which I should give a higher priority.
Okay, I upgraded my kernel from squeeze-backports to linux-image-3.2.0-0.bpo.2-amd64, and suspending seems to work (I only tried it from X). If you want more information to help get this working without backports, let me know; otherwise I might not follow up again.
Dear submitter, as the package pm-utils has just been removed from the Debian archive unstable we hereby close the associated bug reports. We are sorry that we couldn't deal with your issue properly. For details on the removal, please see https://bugs.debian.org/1058701 The version of this package that was in Debian prior to this removal can still be found using https://snapshot.debian.org/. Please note that the changes have been done on the master archive and will not propagate to any mirrors until the next dinstall run at the earliest. This message was generated automatically; if you believe that there is a problem with it please contact the archive administrators by mailing ftpmaster@ftp-master.debian.org. Debian distribution maintenance software pp. Thorsten Alteholz (the ftpmaster behind the curtain)