Also you can try just connecting directly into the Mobo USB-C (sans the slot adaptor) and seeing if you get different behaviour.
I have the same, I wont say problem, but funky behavior. AMD 13, and it wont take a YODOIT portable panle through USB C but fine powering with USB and display through HDMI, strangly with a cheap USB hub i got for a I pad on it, it will do all through USB and split to HDMI in the HUB so it seem like the panle is not happy with output of the USB rather than the USB wont do it, Unfortunatly no settings in the panle for changing input settings so i think im stuck with 2 cables. (work out the back of a van on farms so portable disply is handy compared to a proper monitor.)
Interesting. Can you try this?
Power the portable monitor through other means first, and after making sure it is powered up, connect it to the Framework using USB-C. I know it defeats the “single USB-C cable” convenience, but I’m wondering if it behaves like my CNBANAN portable monitor (14" 2160x1440 3:2 IPS).
Same as you, my CNBANAN won’t display anything when connected using a single USB-C cable. But if I power it up first, and then connect it to Framework, it works. It even works if I use two USB-C cables to Framework, first one to just power it, and then second one to do DP. Stupid, I know.
It also works fine through HDMI, even going through a cheap UGREEN Revodok 5-in-1 USB-C Hub with HDMI.
I guess DP Alt-Mode negotiation is “hard” to get right. My guess is that the monitor needs to be fully powered up to negotiate DP Alt-Mode with Framework. Considering the monitor apparently works fine with many other devices, I’m 50/50 split on whose firmware is broken.
Funny thing is, my Cocopar 15.6" FHD portable monitor works with anything I throw at it, including Framework. I guess some companies just do DP Alt-Mode better, or maybe they talk slightly different languages 
Communication is hard.
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I am also pretty sure there is something a bit screwy there.
My usb-c portable display works fine on all 3 ports but some of my basic usb-c to dp adabters don’t produce output, unless I put an mst hub between it and the display.
I had used a USB-C cable to charge another notebook from my monitor without display output and just assumed it would work for display output too since 65W charging did. I was wrong. After searching for the cable that came with the monitor it works perfectly now 
So maybe try to validate your cable can do what you ask for.
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I also have the same problem since this morning!
It worked fine until yesterday, though…
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Very intresting, i wasnt expecting it but works perfectly, USB A for power, and USB C for image, works perfectly, it seems to be a power suply and image issue over the same port, that then begs the question why it works over one USB C through a hub spliting it to USB C for power and HDMI for image?
Still 2 cables but USB is a far more versatile cable compaired to one USB C and one HDMI to mini HDMI (not very flexable), and at least i can carry one more USB C To get rid of the HDMI and get some longer conection lines! Thanks.
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My i pad powers and dose display straight out the USB C port on the pannle, again usefull for work but not as powerfull as a laptop and only mirrors screen, not the most usefull hence having a hub so i can use mouse and keyboard with it. and cable with the screen works on my desktop and a workfrends laptop so cable and display work over USB C only, just the framwork has a issue with it, and as above only with power and image delivery over the same port, rather strange?
Just a thought: considering how there are some power negotiation issues with 5V power adapters and the external displays working if not powered by the laptop, maybe there is some relation there?
What happens if you pull out your USB-A cable after connection/image via USB-C has been established @Jonathan_Dixon @Richard_Lee1 ?
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Just tryed it, it shuts down the screen, so definetly seems like the USB C dosent like suplying power and Display at the same time. with just USB c conected the display powers up and then goes to slepp as its only getting power and no display feed, like the USB C slot can only do one at a time and reverts to power rather than display. the only other adapter ive had a problem with is a cheap work dongle in the office at work that only converts USB C to two HDMI and again the displays wake but dont show as displays, even though thay are poweerd by mains, its like that dongle needs power and display from the USB C and only gets power. seems odd as my usual hub gets power from the USB C, and can work USB A + USB C data, a card reader and HDMI out without needing any other power in. but having just tryed it it will only do display out on HDMI not USB C.
I also wounder if ive just found a infinet power loop! playing about with it, i tryed powering my hub from my spair USB C on the laptop, and ive found the charging light comes on and laptop says its charging! UNLIMITED POWER!!! (i know thats not how it works, but quite amusing).
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I tried that early on, and it doesn’t work. Also, my cables aren’t the problem. I’ve some high quality cables and swapping them didn’t make a difference. And they work fine with my other portable monitor.
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Just reporting back to the group that I bought a USB4 cable from Amazon, to test instead of the cable that came with the monitor (which claimed to be Thunderbolt). The connection worked - Success.
So my issue was indeed a cable compatibility. If anyone else is having the same problem, I would recommend buying a cable that specifically states USB4 on it (or Thunderbolt 4).
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Reporting in that I’m having the same issue with my AMD framework 13 Win11 using a Chinese no-name amazon monitor https://www.amazon.ca/dp/B0CMHKBJKF
“No input” when display is plugged in via USB-C to the framework. Tried every port. Tried a bunch of different cables (Thunderbolt 4/USB 4 certified, 100W/240W PD, 10gbps/40gbps).
Monitor works perfectly fine with every single other usb-c device in the house, including an old laptop from 2016 (MSI GS60 6QE), a Macbook Air M2, two Win10 desktop computers, a 4th gen iPad Air, and a Samsung S22 Ultra. All devices report the proper resolution, so the monitor and cables I’m testing definitely works.
Weirdly enough, as said by others, when plugging the monitor to a power source first (like a USB-A, another USB-C, etc) it will work with the framework. Also if the power source is unplugged after the screen is on causes it to turn off, then on again and “no input”. Using an HDMI cable will also work. The monitor itself consumes about 5W/1A when using 5V.
Plugging the monitor into a usb-c PD charger first will actually negotiate a 20V and subsequently charge the framework (although the monitor doesn’t draw more than 33W/1.66A).
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Facing the same scenario as you. Got a portable monitor from aliExpress (ASM 160QC). Have tested single USB-C connection on other devices and no issue getting power and signal. On framework 13 AMD, need to provide power to monitor separately, then usb-c displayport works. Even tested a usb4 cable and no luck getting monitor to power and display.
There is definitely something odd with Power sense on the FW13. I have several PD3 100W USB-C triggers and using a tester (FNB58) between the FW13 and combinations of PD PSU’s I often get failures of the FW to Charge - especially from flat, or more often negotiate the PD rate with the PSU’s.
I’ve had similar issues with USB-C Docks and Displays ; where watching PD negotiation with a snooper doesn’t see a CAP (Capabilities?) flag sent from the FW side and so nothing happens.
I’m having the same issue:
- Framework 13" AMD 7640
- 32GB DDR5 5600 Crucial Ram (the one listed as compatible on framework’s website)
- Samsung EVO 970 512GB SSD
- Ubuntu 20.04
Cannot connect display via USB-C with USB-C to Displayport cable. Also doesn’t work with an InnoView portable monitor. It powers up, but doesn’t show an image.
Cables and monitors work fine with a 2020 Macbook Pro, 2022 Macbook Pro, Intel NUC, and an AMD Lenovo Legion. But not with my framework.
Any ideas? I’m about to return it. USB-C has been out for almost a decade now. This shouldn’t be happening.
Install Ubuntu 22.04 and set up the OEM kernel. Ubuntu 20.04 doesn’t have all the support needed for Phoenix graphics.
Not sure what you mean by “setup the OEM kernel”, but yep. Installing Ubuntu Desktop 22.04 fixed it. I guess the AMD chip is still new enough that you need the latest.
Should note that it also did not work in Windows 10, but did work in Windows 11.
Did you end up trying this with the OEM kernel? I’m curious if that worked. And just to confirm, did your monitor before the fix work when you used two cables?
I have the same issue. Portable monitor requires two cables. Logs show error messages with the USB connection ( ucsi_handle_connector_change: ACK failed (-110))
I’ve been running Ubuntu 22.04 with Linux version 6.5.0-1018-oem. Framework 13 AMD.