My desktop monitor is dead. Can I connect my desktop computer to my laptop monitor?

The desktop monitor is still under guarantee and seems to be in permanent hibernation mode - since yesterday. The temperature my study is 25-6 degrees C (that's 78.8 deg. F). Monitor was only a few months old. I can get it serviced but I have lots of work to do urgently. I need a stop-gap solution. Thanks!
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