Comment 6 for bug 563318

We tried this out on our M4500 on 10.10 Desktop x64 (2.6.35-22-generic). We found the exact opposite of #3. It works fine (goes to sleep and comes back) with the "normal" drivers. When we enabled the proprietary nVidia drivers, the display would not come back from sleep (keyboard backlight, etc worked - so we presume it was display only)