Comment 7 for bug 783733

I have this problem on a Lenovo T520 running LinuxMint 12.

After sitting idle (e.g. a few hours or overnight) when I try to wake (via key press or mouse movement)
the screen is completely blank (white, not black). Nothing that I type does anything. Have not tried the
incantation specified by Intel_iX written 2011-12-05 yet.