Hi, I've the following problem: My laptop (Acer Aspire S3, Windows 8.1) doesn't see my external screen anymore (Samsung P2370, connected with HDMI->DVI). It used to be fine, with plugging in and out when needed, copied or shared screens and all. Now, the computer doesn't see that there's an external monitor connected - when I try to switch between them (Function + F5), I only get the laptop's screen as a choice. No plug&play dingaling when I plug the cable in or out.
The external monitor does see a difference, though: when the cable's plugged in, it's black, and when it's out, I get the floating "check signal cable".
Sometimes, very rarely, it does work without any problems. Sometimes, also rather rarely, the laptop shuts down when I plug the thing in (or out? forgot).
I updated the graphics driver through the device manager and there actually was an update, no difference.
All of this might (!) have started around the time of the latest Windows update, but this could be a coincidence only.
Where could the problem be - cable/plug, socket, Windows...? (I'll see if I can try another cable and screen somewhere.)
The external monitor does see a difference, though: when the cable's plugged in, it's black, and when it's out, I get the floating "check signal cable".
Sometimes, very rarely, it does work without any problems. Sometimes, also rather rarely, the laptop shuts down when I plug the thing in (or out? forgot).
I updated the graphics driver through the device manager and there actually was an update, no difference.
All of this might (!) have started around the time of the latest Windows update, but this could be a coincidence only.
Where could the problem be - cable/plug, socket, Windows...? (I'll see if I can try another cable and screen somewhere.)