[Expired for nvidia-graphics-drivers (Ubuntu) because there has been no
activity for 60 days.]
** Changed in: nvidia-graphics-drivers (Ubuntu)
Status: Incomplete => Expired
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https://bugs.launchpad.net/bugs/456637
Title:
Please consider turning powermizer OFF
Status in “nvidia-graphics-drivers” package in Ubuntu:
Expired
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.
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