Re: X220 uncontrollably switches to 50Hz refresh rate upon unplug from power source in ThinkPad: X Series Laptops https://forums.lenovo.com/t5/ThinkPad-X-Series-Laptops/X220-uncontrollably-switches-to-50Hz-refresh-rate-upon-unplug-from-power-source/m-p/439357 ThinkPad: X Series Laptops topics Fri, 07 Oct 2011 06:58:44 +0000 tp02_en <![CDATA[ Re: X220 uncontrollably switches to 50Hz refresh rate upon unplug from power source ]]> https://forums.lenovo.com/topic/findpost/1301/439357/557667
wrote:

I donĀ“t know why everybody is saying the issue has been fixed, because clearly the issue has not been fixed.

Power Manager is set to Maximum performance

Intel graphics manager is set to maximum performance on both battery ]]> Fri, 07 Oct 2011 06:58:44 +0000 https://forums.lenovo.com/topic/findpost/1301/439357/557667 nathan32