Comment 21 for bug 53060

Sitsofe,

I have made some tests with different settings in /etc/default/acpi-support and the results are following:

--> Sleep (suspend to RAM) work well. When resuming only the Touchpad is dead. No blocking problem, but it's anyway an issue
--> Hibernation don't work. All function well (I presume) up to the resuming. When I resume, as you already wrote, my screen is black and the caps lock continue to work. No other operations are possible but completely reboot the PC.
      The resuming steps are:
      1) like a normal boot the PC start presenting the GRUB menu countdown
      2) the boot screen is displayed (UBUNTU with orange progress bar)
      3) the progress bar don't move, but the HDD work a while
      4) the HDD end to work and the screen is black

my current /etc/default/acpi-support is this:
ACPI_SLEEP=true
ACPI_HIBERNATE=true
ACPI_SLEEP_MODE=mem
MODULES="ipw3945"
MODULES_WHITELIST=""
SAVE_VBE_STATE=true
VBESTATE=/var/lib/acpi-support/vbestate
POST_VIDEO=false
USE_DPMS=true
HIBERNATE_MODE=platform
LOCK_SCREEN=true
DISABLE_DMA=true
STOP_SERVICES="mysql psmouse cupsys"
RESTART_IRDA=false
ENABLE_LAPTOP_MODE=false