[Help!]Laptop can not suspend to ram
 

My Laptop can not suspend to ram correctly.


1.I download kernel-2.6.17.8 from kernel.org and install on my Laptop,built with ACPI,APM
and Suspend support.

2.I modified /boot/grub/menu.lst with "reseum=/dev/hda2" appened to kernel line


3.I restart computer and my laptop can suspend to disk.But Suspend to memory work incorrectly

I use this command to check!
$cat /sys/power/state
mem disk

According to the line,It means "suspend to memory" was supported

when I make my laptop suspend to memoy,the following things happened

1.when suspent to mem,I try wake it up,but the screen can not wake up
2.when I try to wake it up,it restart!


Help! Please ,any body!

Hardware List of my laptop
Brand Hasee A180S
Vendor Paradise Shenzhen ,China
km400 chipset
AMD 1800+ cpu
S3 IGP Graphic Driver

If it doesnt resume from sleep, don't use sleep. Simple as that. It doesnt say "experimental" on the feature list for nothing!

Try passing the acpi_sleep=s3_bios as a kernel parameter during boot-up. This fixed the Suspend to RAM problem in a laptop showing the same symptoms.

if nothing works out for you, you might find this link useful:
How to suspend and hibernate a laptop under Linux