Is there any idea when Intel will have an AX200 driver for linux PCIe 4x, 8x and 16x slots?
I have several Intel ax200 based network cards but they will not work in anything but a PCIe x1 slot under Linux Mint, Ubuntu, Budgie or FreeBsd. Unfortunately quite a few of my computers don't have a PCIe x1 slot so none of the many existing iwl family drivers work.
As pointed out in the thread https://community.intel.com/t5/Wireless/Intel-AX-200-network-card-not-working-under-Linux-Mint/m-p/1... this is an issue common across many different versions of Linux and makes of motherboards.
This is not particular to Linux; it happens with Windows as well. AFAIK, it is a hardware limitation of the PCIe carrier card design and there is nothing that Intel can do in the drivers to make up for it. I would also note that there are other PCIe x1 cards, which have nothing to do with networking or wireless, that also will not work in x4/x8/x16 slots. Bottom line, don't expect a miracle here; it is unlikely to happen.
Since the device works well in an x1 slot under windows but not in an x1 slot under Linux does it not seem most likely that it is a software driver issue rather than some hardware issue?
Correct. My Bad. But the question still seems valid. The device works under Windows but not under Linux when inserted into an x1 slot. That seems to indicate that it is a software issue rather than a hardware one; and issue with Intel's software rather than some board related issue.
I'm saying that and also lots of other folk are saying that. It is a fairly common issue and if you read the link to bugzilla in the OP you will find it is not limited to any one card or any one version of Linux or any one brand of motherboard.