In /etc/default/acpi-support, set SAVE_VBE_STATE=false
No change
Reverting that and then In /etc/default/acpi-support, set SAVE_VIDEO_PCI_STATE=true
No change (I haven't restarted X, GDM or the machine in between these - do I need to?)
Reverting that and then In /etc/default/acpi-support, set POST_VIDEO=false
No change
Reverting that and then In /etc/default/acpi-support, set USE_DPMS=true
Already set as this
In /etc/default/ acpi-support, set SAVE_VBE_ STATE=false
No change
Reverting that and then In /etc/default/ acpi-support, set SAVE_VIDEO_ PCI_STATE= true
No change (I haven't restarted X, GDM or the machine in between these - do I need to?)
Reverting that and then In /etc/default/ acpi-support, set POST_VIDEO=false
No change
Reverting that and then In /etc/default/ acpi-support, set USE_DPMS=true
Already set as this