Hello,
I own an aspire s13 ( s5-371) and I have this annoying problem :
1. With bios set to UEFI and booting from windows 10 :
When I open the lid to resume from sleep it will not work ( screen is black and I see a faint pulse about 1 sec frequency) . The only way to make it work is to open the lid to somewhere between 30-45 degrees, the screen then lights up , and it will work . I can then extend it to the position I want.
Also , on numerous occasions , restarting and shutting down produce the same effect. Black screen, so I need to resort to opening the lid slowly.
2.With bios set to Legacy and booting ubuntu 16.04:
There are no issues.
Which makes me think if this is a bios issue . I updated to latest bios version (2016/12/20 ) but the problem is still there. I also updated all the drivers ( however I see no point in doing that, since the issue also occurs before booting windows 10 )
One last thing : Sometimes, resuming from sleep and opening the lid to 90 degrees messes up the graphics, to a 800X600 resolution, that prompts an error from the display driver.
