Now, having edited grub for my resolution (no success though) I'm more confident. I couldn't get my head round the edits when you first mentioned them to me. I run my Thinkpad X220 since some time like this and it needs only 5 W when idling, giving me 5 to 8 hours on battery. If it works as expected and no system instablity occurs (there's only a small risk) then make these changes permanent:įind the line with GRUB_CMDLINE_LINUX_DEFAULT="quiet splash" and insert the above mentioned parameters.
so here we go:Īt the grub menu press and navigate to the line with splash (or nosplash) and insert pcie_aspm=force and i915.i915_enable_rc6=1 Just yesterday I guided a mate over in the german section and he was very happy about the solution.
(just search my postings) I even told ddaann how to cure it but he didn't hear. But I'm somewhat tired now repeating this over and over like a mantra. It's easy to revert these changes and to carry out a test.
These changes came with kernel 2.6.38 and 3.0. It's too much for Lenovo to provide a simple setup guide.If it's a sandy bridge with hd graphics it's dead shure you are affected by the 2 power regressions that were introduced by changing the allowed CPU/GPU/chipset power states due to bug reports.
If any other steps are followed, you may notice the Windows driver management service occasionally consume high memory and CPU resources. And, this is by far currently the best way to properly utilize the Energy Management feature.
I have tested many other ways to install this driver. Instead run the setup.exe file in "C:\drivers\Lenovo Energy Management" (after unzipping) in compatibility mode for Win 8.1. Make sure you do not directly install the software. So, if you need the conventional desktop app like you had in Win 8.1, install the Lenovo Energy Management software for Win 8.1. Step 4: I find opening the app each time to use the feature quite frustrating. Step 3: Install the Lenovo Settings App again and under the power management feature, you'll be able to enable/disable the Conservation mode. Next, go to LenovoVhid folder and similarly install the " WUDFVhidmini.inf" file.Īlso, install the Lenovo Utility software for Win 10. Open the folder AcpiVpc and right-click on " AcpiVpc.inf" file and click on install. Now, go to C:\drivers (or wherever the Lenovo Energy manager Windows 10 software had previously unzipped itself). Step 2: Install the System Interface Driver first. Step 1: Uninstall the Lenovo Settings app, and any other Energy manager software you have installed so that there's no conflict with the drivers. Do follow these steps if you don't want the device manager to mark the driver as incompatible after installing it. Make sure you download it from the webpage it opens. Upon opening the app, it'll ask you to download the "System Interface Driver". So, in order to use the Energy manager, you need to download the "Lenovo Settings" app from the Store. Now, on the advent of Win 10, manufacturers seem to switch away from the conventional desktop apps to Store apps. And, yes the Lenovo Energy manager does not seem to work as it used to in Win 8.1 through a desktop app.