01-16-2019 07:58 AM
for some time now, my Thinkpad L380 feels very slow sometimes. I found out it's when it's loading (via USB-C). When the battery is at 100%, or when it is in battery mode, the CPU reaches its full 2~4 GHz. But when loading, it's very very slooow, around 0.4 ... 0.6 GHz.
How to stop that? I cannot use the normal Power Adaptor on my desktop, because I have a Display which needs DisplayPort, so I have to use the ThinkPad USB-C Docking. But it's slow even if I connect the USB-C dock and the original power adaptor at the same time.
It's when I connect it via the ThinkPad USB-C Docking, or via a Dell USB-C-Monitor, or via a 65 W Apple adaptor. (All three sources are able to support a Dell XPS15 with full speed while loading.)