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What's DOS?
Posts: 1
Registered: ‎02-07-2012
Location: Wien
Message 1 of 2 (302 Views)

t420s - swapping to extended monitor doesnt work

[ Edited ]

connecting my laptop to a tv or any other external monitor does work but when i try to swap to extended monitor or any other setting my pc shuts down and reboots.

any ideas ??

thank you in advance

Retired Support Specialist
Posts: 1,241
Registered: ‎11-02-2011
Location: India
Message 2 of 2 (279 Views)

Re: t420s - swapping to extended monitor doesnt work



For resolving the mentioned issue , Please try the following


1.  Update the Bios to latest version


2. Update the Display Video drivers


After updating drivers press Fn + F7 to toggle from internal to External Monitor


I hope this helps






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