Comment 28 for bug 562005

I just did a fresh install of Maverick 64-bit on my HP EliteBook 8440p with NVS 3100m graphics. I still had to use "nomodeset" to install and to boot thereafter, but that's not an issue. After installing the nVidia proprietary drivers, I found that whenever my notebook tries to power its screen off, it gets stuck as black and has to be restarted to fix. The computer is still responsive, since I can ctrl-alt-del, enter, tab, enter to poweroff. I have tried adding the [Option "RegistryDwords" "EnableBrightnessControl=1"] line to the device section of my xorg.conf and rebooting, just as I did in Lucid. Unlike in Lucid, this did not resolve my issue. My nvidia driver version is 260.19.06-0ubuntu1. Could anyone please suggest any workarounds I could try? I can suspend just fine, but I often like to shut my screen and let my notebook continue working. Thank you in advance.