So according to this graph the 4th slot should be ideal for usb-a but I’m encountering issues with that slot being able to read data from usb-a.
I’m currently using 1 & 3 for display outputs, charging, and a usb-a through a usb-c hub.
Slot 2 works fine for usb-a and is what I always have to use, if I don’t move it up to 1/3, to install OS, flash a usb, or anything like that.
In slot 4 I can plug usb-a devices in and they charge but there’s no data being passed through. I’ve checked with two different expansion cards and same issue, not sure what’s going on.
Not sure if this is the same problem you’re seeing, but I noticed that my external USB-A SSD doesn’t work properly in slot 2 and 4. It works fine in slots 1 and 3.
I’ve had this with the mini/micro/whatever sdcard, the component only works in certain slots. I have no idea if it’s a Linux software thing or a physical problem, as it sadly not covered by that diagram
I’ve had some similar issues with the eth card and the hdmi card. It’s only happened one time for each card but sometimes if I move them around too much while the computer is booted/posting they don’t register as being connected, only solution I found was to fully shut down, unplug, and let it all sit for a few minutes. Though everything works fine if I just close the lid and then swap cards around.
The only cards that haven’t ever had an issue are the usb c cards.
I don’t think it’s a linux thing, I had the same issues when I had windows installed for a little bit. Slots 2 & 4 seem finicky & I’m not sure why.
It’s unlikely to be a motherboard issue & likely the cards right?
@anon81945988 As I understand it, all slots should work with any expansion card with Intel.
The diagram shown and linked above is for the AMD 7040 series only.
On my FW 13 AMD 7840U the USB-A expansion card works differently when connected to port 2 vs being connected to port 4 when the computer exits suspend. In port 2 when the computer returns from suspend, the USB-A briefly disconnects and reconnects (within 1 second), while in port 4 it does not disconnect. The same seems to happen every time.
How I see this is when I’m booted to a live Fedora 41 from a USB stick, and have the stick connected to port 2, when the computer returns from suspend sudo dmesg shows I/O errors and applications that were not loaded to memory before suspend do not start, while doing the same but having the USB stick connected to port 4 everything works normally after suspend.
Do others see the same behaviour, or is it just my unit?
I also wonder what is special about the FW 13 expansion port 2, as according to the picture above it does not support display output but for example port 4 that is also USB 3.2 does?
