Mike Phillips:
I suggest you make some changes in your /etc/default/acpi-support file.
gksudo gedit /etc/default/acpi-support
Change "SAVE_VBE_STATE=true" to "SAVE_VBE_STATE=false" Change "POST_VIDEO=true" to "POST_VIDEO=false"
Reboot and you may have better luck.
Mike Phillips:
I suggest you make some changes in your /etc/default/ acpi-support file.
gksudo gedit /etc/default/ acpi-support
Change "SAVE_VBE_ STATE=true" to "SAVE_VBE_ STATE=false"
Change "POST_VIDEO=true" to "POST_VIDEO=false"
Reboot and you may have better luck.