I've searched high and low for a solution to this, but with no avail. When I put my IBM T30 into standby, everything seems to do well for the exception of the LCD (and alsa, but that problem is at least tolerable).
The screen will turn off, then immediately turn back on.
The screen will then remain on while what seems to be standby mode. I never noticed this until it died due to the battery getting drained. I never had this problem with feisty or gutsy. Here are some things I've tried:
1. vbetool dpms off/standby both work just fine when called on their own
2. replacing the 'vbetool' line in /etc/acpi/suspend.d/90-framebuffer-stop.sh with 'radeontool light off' has no affect.
3. adding '"Option" "dpms" "true"' in xorg.conf has no affect.
4. uncommenting everything besides 'vbetool dpms off' in 90-framebuffer-stop.sh
I really think that it's more a problem of the screen getting turned back on after 'vbetool dpms off' is called rather than it not getting shut off correctly
.. and nothing really seems to jump out at me as a problem in /var/log/messages or /var/log/acpi ..
can anybody offer an other suggests as to where i should look to solve this? an "unstandbyable" laptop is no laptop at all, man.