Hi, I have a Lenovo ThinkCentre Tiny-in-One TIO 23 - Machine Type: 10DQ

I do not want to use it as a PC anymore & instead just want to use my laptop instead and use the ThinkCentre as an external monitor. I called Lenovo Tech Support & they said it can be used as an external monitor via the DisplayPort toward the bottom-right hand side & told me to buy the following Adaptor 
https://www.lenovo.com/au/en/p/accessories-and-software/cables-and-adapters/cables-&-adapters_adapters/4x90r61023   which I did, however it still doesnt seem to work (I am also making sure I click the button on the front-left of the monitor to switch from AIO to D.P Mode & still nothing??)

I believe they have suggest the wrong cable/adaptor & the  correct one that is needed is actually a "HDMI to Display Port Adaptor"  & not the suggested one which is "DisplayPort to HDMI"   as my laptop (output) is HDMI and the  Lenonovo All-In-One Monitor is DisplayPort (Input)

Has anyone been able to use the ThinkCentre as just an External Monitor succesfully? rather than just a PC?

Thanks for any help :)

@greatkid wrote:

I believe they have suggest the wrong cable/adaptor & the  correct one that is needed is actually a "HDMI to Display Port Adaptor"  & not the suggested one which is "DisplayPort to HDMI"   as my laptop (output) is HDMI and the  Lenonovo All-In-One Monitor is DisplayPort (Input)

Has anyone been able to use the ThinkCentre TIO as just an External Monitor succesfully? rather than just a PC?

Yes, has been diaried here before.  You are correct, the vast majority are unidirectional in the DP to HDMI direction, you need one of the few that are Bidirectional.  Cable Matters is my go-to adapter brand, and Club3D may also have one. 

Dear Misters,

My problem that I have is that I can't get my laptop screen to project to my ThinkCentre Tiny in One 24 Gen 4 Touch monitor. from my laptop i connect an hdmi cable and the other end of the cable to the monitor with Display Port connector. I have configured the monitor in DP mode but still it is not possible to project the screen of my laptop and on my monitor and I get the message of "no signal" on the monitor.

What else do you recommend I try?