My laptop is an older Thinkpad T430 i5. I have a fresh install of 4.1 (after dom0 updates) which works well. However, when I close the laptop lid and the system suspends, it won’t wake up when I open the lid. The screen is dark, the power button is blinking on and off and is unresponsive to keypresses. Trying to switch to another screen with Ctrl-Shift-F2 (or any other key combination) does nothing.
Is there any way I can try to troubleshoot this? Any logs to examine? Any other advice on getting this to work?