How is your experience?
I’m using a 380 (first one I could buy) since a long time 
Will tell you today or tomorrow I have an Are 770 on order expected to arrive today.
That said, the latest builds are working with my Nvidia video adapters an an AMD
system.
The Clear Linux build Version 39240 works with no need for proprietary drivers ( at least for my system).
lspci -k | grep -EA3 ‘VGA|3D|Display’
0a:00.0 VGA compatible controller: NVIDIA Corporation GP108 [GeForce GT 1030] (rev a1)
Subsystem: ASUSTeK Computer Inc. Device 85f4
Kernel driver in use: nouveau
Kernel modules: nvidiafb, nouveau
I am runing an AMD system:
lscpu
Architecture: x86_64
CPU op-mode(s): 32-bit, 64-bit
Address sizes: 48 bits physical, 48 bits virtual
Byte Order: Little Endian
CPU(s): 32
On-line CPU(s) list: 0-31
Vendor ID: AuthenticAMD
BIOS Vendor ID: Advanced Micro Devices, Inc.
Model name: AMD Ryzen 9 5950X 16-Core Processor
BIOS Model name: AMD Ryzen 9 5950X 16-Core Processor Unknown CPU @ 3.4GHz
BIOS CPU family: 107
CPU family: 25
Model: 33
Thread(s) per core: 2
Core(s) per socket: 16
Socket(s): 1
Stepping: 2
Frequency boost: enabled
CPU(s) scaling MHz: 68%
CPU max MHz: 5083.3979
CPU min MHz: 2200.0000
BogoMIPS: 6787.34
Nvidia video started working (at least mine did) with the nouveau open source driver.
Looking back at the Clear Linux release history
https://cdn.download.clearlinux.org/releases
Look like modules that have to do with Xwindows and other related driver appear to have
been updated.
Checking Versions in release notes
Index of /releases/39210/clear/
iso’s exist…
xf86-video-amdgpu 23.0.0-297 → 23.0.0-298
xf86-video-fbdev 0.5.0-296 → 0.5.0-297
xf86-video-nouveau 1.0.17-288 → 1.0.17-289
xf86-video-qxl 0.1.6-291 → 0.1.6-292
xf86-video-vboxvideo 1.0.0-280 → 1.0.0-281
xf86-video-vesa 2.6.0-299 → 2.6.0-300
xorg-server 21.1.8-250 → 21.1.8-251
Index of /releases/39220/clear/
iso’s exists
Relevant parts of release
xf86-video-amdgpu 23.0.0-298 → 23.0.0-302
xf86-video-fbdev 0.5.0-297 → 0.5.0-301
xf86-video-nouveau 1.0.17-289 → 1.0.17-293
xf86-video-qxl 0.1.6-292 → 0.1.6-296
xf86-video-vboxvideo 1.0.0-281 → 1.0.0-285
xf86-video-vesa 2.6.0-300 → 2.6.0-304
xf86-video-vmware 13.4.0-148 → 13.4.0-150
xfsprogs 6.2.0-55 → 6.3.0-56
xorg-server 21.1.8-251 → 21.1.8-253
Index of /releases/39230/clear
iso’s exist
Relevant parts of release
xf86-video-amdgpu 23.0.0-302 → 23.0.0-304
xf86-video-fbdev 0.5.0-301 → 0.5.0-303
xf86-video-nouveau 1.0.17-293 → 1.0.17-295
xf86-video-qxl 0.1.6-296 → 0.1.6-298
xf86-video-vboxvideo 1.0.0-285 → 1.0.0-287
xf86-video-vesa 2.6.0-304 → 2.6.0-306
xf86-video-vmware 13.4.0-150 → 13.4.0-151
xorg-server 21.1.8-253 → 21.1.8-254
did your arc 770 arrive? 
It did I have not had a chance to try it yet I plan to. I was working a major update from
Linux build 37500 with a syslinux boot loader up to 39230 with a EFI boot loader, while keeping my samba PDC working. That is now done. Everything is working learned a lot about EFI boot loader. What and what not to keep for configuration for archiving configuration information.
I have a very late version live desktop boot flash, I plan to change out my nvidia driver
and then see if the ARC 770 just works.
Try to install I could not past firmware setup, I could not see anything. I did not realize; you have to supply external power. I went back to the Nvidia driver for now.
I need to learn more about the requirements to make the Intel Arc 770 work. So it’s going to be a while.
I have an A770 and it works with my clear Linux installation.
Also I just tested the desktop installer image that I used to install clear Linux and the live desktop started just fine despite the kernel version being listed as 6.1.2-1232. I believe the drivers were still experimental on this version and needed either “i915 force_probe” or “nomodeset” to work but they seem to be running just fine on the live desktop image.
Did you have to supply external power to A770 with PCIe GPU power cable/connector connected to PSU? The intel URL: How to Connect Power to an Intel® Arc™ Graphics Limited…
Instructed external power needs to be supplied:
Even without external power connected my server booted, console screen was dark, the
server functions still worked.
Yes the power PCIe connectors are connected on my Graphic card.
How much power does it draw in idle?
It had problems with multiple Displays when it comes to idle power but I think that is already fixed when I remember correctly
I don’t know how much power it consumes running sensors doesn’t tell me how much power it using, I haven’t run sensors-detect due to the warning in the man page about hardware damage
My system has the Arc A770 running with external power connected.
It took a bit to get the correct power cables from my PSU to the Arc A770. In my system
I have ASUS ROG STRIX B550-F GAMING AM4 AMD B550 SATA 6Gb/s ATX AMD Motherboard
with a Fractal Design Ion Gold 850W 80 PLUS Gold Certifi ed Fully Modular ATX Power Supply.
There are lot of PSU to GPU power cables out there, but the PCI power specification was not
really nailed down as a consequence, no easy part number or clear name to refer to just chances
to get it wrong. Finally ordered 4 cables 2 as extenders. The 2 pairs of cable were modified ( extender + GPU power cable (female sockets). The extender plugging into PSU the other end going to a Male 8 pin connector. I cut the 8 pin male connector off, spliced pin to pin with the
with cable connected to GPU 8 Pin / 6 Pin ( female sockets) on the other end.
Here are some graphics and URL’s for reference.
Power supply side mapping
Fractal PCI device side information:
PCI Express - Wikipedia
In the Wikipedia page go down to the table: Molex Mini-Fit Jr. part numbers
and below. Both the Fractal and the PCI wiki page and other reference state that
pin 4 of the 8 pin GPU get’s wired to ground. I did not do that I ended mapping that pin
to 12V. In the PCI specification this is a “sense” pin. My Intel VGA came up working just
fine.