https://bugs.freedesktop.org/show_bug.cgi?id=39953
--- Comment #4 from Marc Deslauriers marc.deslauriers@canonical.com 2011-10-15 20:03:41 PDT --- I am getting this on a C-50 based Acer Aspire One 522. I can reliably reproduce the issue with:
xset dpms force off; sleep 10; xset dpms force on