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The original was posted on /r/ubuntu by /u/TioLeivonz on 2023-08-07 16:08:25+00:00.

Hi guys, how are you? I have a question. I bought an AIO (All-in-One) PC

and installed Ubuntu, specifically version 16.04 (we use it in our

software development company). The issue is that when I try to connect

another monitor, it doesn’t display anything; the system doesn’t detect

it. However, when I reboot, both the AIO’s screen and the connected one

show the same content, as if it’s being duplicated. But the system

doesn’t recognize the new monitor; it’s like the connected monitor is

acting as the primary screen alongside the AIO’s screen. We tried

downloading drivers and everything, but nothing is working. The AIO has a

12th generation Intel processor with an integrated graphics card, which

is part of the same processor.