![]() Read the following sections for a few suggested configurations. ![]() If you do end up in such a state though, don't panic : just edit your boot options to mask the optimus-manager service (or boot to console with the multi-user target), then undo your changes. The purpose of this feature is to allow tinkering with the power management options without ending up in a state where the machine just locks up at boot. Then optimus-manager will revert to the normal user configuration. This temporary configuration will only be loaded once, at the next startup of the optimus-manager service (which normally happens at boot). However it's also possible to submit a TEMPORARY configuration file by running : The user configuration file is located at /etc/optimus-manager/nf. The power management options must be set in the configuration file. Of course, if your laptop is always plugged in or don't care about battery life, you can just ignore this page and leave the default configuration untouched. Therefore, don't be surprised if optimus-manager does not improve your battery life straight away : you must first configure it manually to use the proper power switching method, in order for the Nvidia GPU to be turned off when unused. ![]() The reason for this choice is that pretty much every laptop model model requires a specific method, and using the wrong one can lead to complete system lockups, weird driver issues, or unexpected reboots. ![]() optimus-manager supports several ways to control the power state of the Nvidia GPU, however since v1.2 they are all disabled by default. The whole point of the Optimus technology in laptops is that your Nvidia GPU can be turned off when you are not using it, resulting in significant power savings. I then realised that after my recent driver update the Nvidia control panel power management mode was set to Optimal power rather than my usual Prefer maximum.A guide to power management options in optimus-manager Normally I would see the GPU Core clock speed at 1980 Mhz all the time and the GPU Core % around 80-85% & temps about 70C in that type of scenery.Īs you can see it shows the core running at 1230Mhz with 95% and the temps down at 53C. Taking a look at Open hardware monitor I saw thisįor those of you not familair with open hardware monitor, the first column is the current value, the 2nd column the minimum and the 3rd column the Max value recorded. I thought maybe it was due to the amounts of cloud being rendered etc… But when I finally flew into some clear areas with only a few clouds on the horizon it was still showing 95-99%. I was up at 11,000 feet with live weather on with lots of clouds. Today I was flying along over the Swiss alps in my Cessna Caravan and noticed my GPU was pegged at 95-99% core usage. I know a lot of people advocate running GPU at 100% but I don’t agree with that, and prefer to have a little bit of spare capacity for when I go into more demanding areas and it keeps my GPU about 7C lower in temp than 100%. This usually sees me running with about 80-85% GPU core usage and temps about 65-75C. I usually have my FPS limited to 33fps (more recently at 40fps with last Nvidia driver) in the Nvidia control panel and have Vsync set to fast in there also. I keep a close eye on my CPU & GPU performance (using open hardware monitor software) after trying a bit of tweaking or after driver updates etc… Like many suggestions I’ve seen in posts elsewhere on this forum I’ve always had it set to Prefer maximum performance. I’ve just been experimenting with the Power managment mode in the Nvidia control panel.īear with me on this one, it’s a lengthy example but I’d welcome any thoughts on this, and it may be of help to some of you.
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