If you can spare 10 minutes, please see my blogpost for how to test this and send me a mail with the info request in the blogpost: https://hansdegoede.livejournal.com/18653.html

also, how to determine if "i915.enable_psr=1" was entered correctly and accepted?

Hi All, For the "Improved Laptop Battery Life" feature: https://fedoraproject.org/wiki/Changes/ImprovedLaptopBatteryLife I'm working on for Fedora 28 I would like to also try and enable Panel Self Refresh on laptops with Intel graphics, some quick tests have shown this to save another 0.5W (when idle / nothing on the screen changes). This is currently off be default because it is known to cause issues on some devices. So I think we will probably need a white- or black-list. But first we need more data on this. If you can spare 10 minutes, please see my blogpost for how to test this and send me a mail with the info request in the blogpost: https://hansdegoede.livejournal.com/18653.html

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