So, I bit the bullet, and have a Thinkpad R51 now running Fedora Core 3 + all the updates My display controller is: 00:02.1 Display controller: Intel Corp. 82852/855GM Integrated Graphics Device (rev 02) When I try to put the machine to sleep, via my acpi config in /etc/acpi/actions: #!/bin/sh VT=`/usr/bin/fgconsole` /usr/bin/chvt 1 /bin/sync /sbin/hwclock --systohc /sbin/rmmod ehci_hcd /sbin/ifdown eth0 /sbin/rmmod ipw2100 echo -n mem > /sys/power/state /sbin/hwclock --hctosys /usr/bin/chvt $VT /sbin/modprobe ehci_hcd /sbin/modprobe ipw2100 It sleeps just fine, however, trying to wake it up is where I start losing joy. The display doesn't come back up (so I hit ctrl+alt+f1, login as root, and reboot the box) So I appended acpi_sleep=s3_bios to the kernel, and tried to see if that might work - no joy, it kernel paniced! Anyone got sleep working on the Thinkpad R51? Thanks -- Colin Charles, byte@xxxxxxxxxxx http://www.bytebot.net/ "First they ignore you, then they laugh at you, then they fight you, then you win." -- Mohandas Gandhi