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I'm trying to figure out how to make it so that when I close my laptop, it will suspend, but when I open it up again, the screen remains black, as though it's not able to access xorg.conf. here's my /var/log/suspend2ram.log file:
It seems to me that there should be something else that comes after this. Currently, I'm experiencing problems using "powersave -u", but everything else I've tried gives me the same problem. I'm using kernel26suspend2 on Arch Linux. I'm using a Compaq Presario 2500 with an ATI Radeon Mobile video card. The hibernate script works fine.
I don't yet have a fix for this, but I do have similar problems waking my HP nx6310 from suspended-to-RAM. Suspend (I think it is acpi mode S3) did work *perfectly* under Mandrivs 2006 with a patched kernel 2.6.18-mm3. Under 2007, all kernels I've tried so far wake up ok but does not turn the backlight on. So I do not think it is the kernel but some other part of xorg or suspend scripts etc. Perhaps someone else can tell us what changed between 2006 and 2007 that might be relevant to this.
Searching the web for hints I found mention of "video post" (Power-on self test?) that seems to be related to our problem. Try googling "vbetool" and see if there's anything that works for you.
Some progress - I have suspend-to-RAM working again on my HP nx6310 !
centrino duo core T2400 (1.83GHz)
Intel GMA950 SXGA+ 1400x1050
Mandriva 2007, kernel 2.6.17-6mdv (re-compiled, but no patches)
Key to getting this working seems to have been the VBERestore option in /etc/X11/xorg.conf :
BoardName "Intel 945"
# Option "DPMS"
Option "BackingStore" "true"
Option "VBERestore" "true"
Now, suspend from the KDE battery applet works. Power button blinks while suspended. On pressing the power button, there is a little disk activity, but no video. Then press ctl-alt-F8, followed by ctl-alt-F7. X comes right back up in 1400x1050 mode. Intel ipw3945 wireless re-establishes a connection. Only problem is the touchpad is non-responsive after resume. Anyone know how to fix that?