After upgrading to 10.13, I noticed some odd graphical glitches in Safari and my rMBP (2012) getting quite hot at random times.
Activity Monitor showed fairly average CPU and memory usage so I installed iStat to check out the GPU usage.
Turns out, as soon as I plug in my 24" Cinema Display the discrete GPU kicks in and the memory usage is instantly saturated to nearly 100%. As soon as I unplug it, same apps running, it drops back to the integrated GPU which is using a < 25% of its memory.
Machine's getting a little older and I'm worried about burning it out.
Anyone else having trouble with external displays hammering your GPU in High Sierra?
Activity Monitor showed fairly average CPU and memory usage so I installed iStat to check out the GPU usage.
Turns out, as soon as I plug in my 24" Cinema Display the discrete GPU kicks in and the memory usage is instantly saturated to nearly 100%. As soon as I unplug it, same apps running, it drops back to the integrated GPU which is using a < 25% of its memory.
Machine's getting a little older and I'm worried about burning it out.
Anyone else having trouble with external displays hammering your GPU in High Sierra?