I just wondering, why you doesn't report this PowerMizer issues to nVidia? 8400M is still supported, so they should fix this in newer builds of the driver. http://nvidia.custhelp.com/app/ask
-- You received this bug notification because you are a member of Desktop Packages, which is subscribed to nvidia-graphics-drivers in Ubuntu. https://bugs.launchpad.net/bugs/456637 Title: Please consider turning powermizer OFF Status in “nvidia-graphics-drivers” package in Ubuntu: Incomplete Bug description: This is not a bug report but more of feature request. I cannot use any nvidia driver newer than 185.18.14 on my Sony Vaio AR520E with Nvidia 8400M GT. The symptoms are, screen flickering, artifacts, complete system freeze, etc. It turns out that this is a well known problem with the latest drivers, a lot of people experience it. The problem is hardware specific, not OS dependent. The fix for is to turn powermizer off by creating a file /etc/modprobe.d/nvidia.conf with the following in it: options nvidia NVreg_RegistryDwords="PerfLevelSrc=0x2222" Since Karmic boots into graphical desktop by default, any user whose h/w is affected by this bug will not be able to get even a usable login prompt after installing the nvidia driver. The user may not even be able to fix the problem. In light of that, please consider changing the installer so that the user gets a choice of turning on powermizer with a warning that it may make the system unusable. There should also be a boot-time option to disable powermizer, if X does not stat properly. Or maybe it is better to turn off powermizer by default with a warning that turning it on may create problems. Please consider turning the powermizer feature off, or make it optional. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/nvidia-graphics-drivers/+bug/456637/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : desktop-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp
