VGA is not really supported (you're lucky it works at all). You may have to unplug before sleep, so you can hotplug after wake.Now other little problem... sometimes I use an external monitor with VGA Connector.
Until the computer goes in standby the resolution of monitor is ok (1920*1080). After the standby when I wake up the laptop the monitor take a low resolution , to fix I have to remove and re-add the monitor to use with the correct resolution
VGA not recommended. Test same scenario with HDMI monitor instead.Good Morning.
Today I have another reboot after lock the osx with external monitor ( other monitor , not the same of yesterday).
This reboot is caused by external monitor ( always VGA) or is for other reason?