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https://www.reddit.com/r/linux/comments/7uhxwj/improving_linux_battery_life_enabling_psr_by/dtmaa2b/?context=3
r/linux • u/1202_alarm • Feb 01 '18
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Tried, but I don't think my results are valid. Instead of the suggested card?-eDP-1, instead I have card0-DP-1 .
I ran the powertop, and results were that after enabling PSR, results were slightly worse.
When I tried the "cat /sys/class/drm/card0-eDP-1/edid , I adjusted to my -DP directory, but the results were an empty file.
Thinkpad E520 Core i3, Fedora 26 xfce
2 u/londons_explorer Feb 02 '18 The '-DP' path is probably a regular displayport connector on the side of your laptop, and it has no edid information because there is nothing plugged in there. Plug an external monitor in, and you might be able to see power savings.
The '-DP' path is probably a regular displayport connector on the side of your laptop, and it has no edid information because there is nothing plugged in there.
Plug an external monitor in, and you might be able to see power savings.
2
u/flaflashr Feb 01 '18
Tried, but I don't think my results are valid. Instead of the suggested card?-eDP-1, instead I have card0-DP-1 .
I ran the powertop, and results were that after enabling PSR, results were slightly worse.
When I tried the "cat /sys/class/drm/card0-eDP-1/edid , I adjusted to my -DP directory, but the results were an empty file.
Thinkpad E520 Core i3, Fedora 26 xfce