- Open the Settings menu on your Samsung device.
- Tap on Connections which should be the topmost setting.
- Now scroll to the bottom and tap on More connection settings.
- Select HDMI mode from the options.
- A small window should appear with the HDMI options — Samsung DeX and Screen mirroring.
Select either of the two based on your preference.
Answer from karthik nair on Stack ExchangeVideos
- Open the Settings menu on your Samsung device.
- Tap on Connections which should be the topmost setting.
- Now scroll to the bottom and tap on More connection settings.
- Select HDMI mode from the options.
- A small window should appear with the HDMI options — Samsung DeX and Screen mirroring.
Select either of the two based on your preference.
Just a guess, maybe you should press dex in the drop down menu quick panel icons? You might need to edit the quick panel and drag it down.
Otherwise, you can try (search "dex settings" in settings) to enable auto start when hdmi is connected.
I find it easier to search in settings, because searching in finder requires more keywords.
Sometimes it's easier to edit the Dex settings when you first connect it wirelessly to windows, because there are more settings when it's turned on.
Finally, I'm not sure Dex needs to be used at all when connecting to a display. Check your HDMI cable if it supports the right protocols (usb 3.1, mhl, hdmi alternate mode).
And ofcourse, set the input source of your Philips dislay to HDMI.
I have been using an HDMI cable + HDMI to USB-C adapter to connect two monitors to my laptop. My main monitor is directly plugged in to the HDMI-socket, and the USB-C adapter to the only USB-C socket on the laptop. It's been working flawlessly until yesterday. Now the second monitor just displays "No HDMI signal" and goes to sleep mode. It does not even recognize me plugging in the USB-C cable. Take note that I've done zero (0, nil, no) changes to my setup.
Naturally I thought that the adapter was faulty since I did some testing with the USB-C socket (it charged my iPhone), and the HDMI-cable was working. Purchased a new HDMI to USB-C cable but to no avail.
On my laptop the device manager shows my monitor as a "BillBoard Service".
Has anyone run into this problem? Google is not my friend in this matter, even though I am a man of lurking the internet. Can someone point me in the right direction here?
Many thanks.
Edit: Okay so it got solved by turing the laptop off, then holding the on button for 30 seconds and letting go. What this triggered I have no idea but it might help someone out.
Hi. i got a S24U and when i connect it to my HDMI port on laptop nothing happens, it just says "charging connected device via usb" on my phone.
I want to use my phone as a track pad / drawing pad for my laptop.
Windoes 11, OneUI 6.1, UGREEN usb-c to hdmi 4k cable