UnclaImed display in ubuntu 21.04 with Rocket Lake

I just put together a new PC and put an 11th gen (Rocket lake) intel CPU, i5-11400. It is supposed to have Intel UHD Graphics 730. I installed the just-released ubuntu 21.04.

But the display shows as UNCLAIMED, and I can't change the resolution, and when I try to hook up 2 monitors, the resolution decreases dramatically. It seems to me there's a problem with the driver.

Is the Intel UHD Graphics 730 driver not available in linux yet? I read that they didn't even release the driver until a few weeks ago. Looking back at similar issues over the past few years, it seems it may take awhile for this processor to support linux graphics. If that's the case, does anyone know how long that usually takes?

sudo lshw -c video
  *-display UNCLAIMED       
       description: VGA compatible controller
       product: Intel Corporation
       vendor: Intel Corporation
       physical id: 2
       bus info: pci@0000:00:02.0
       version: 04
       width: 64 bits
       clock: 33MHz
       capabilities: pciexpress msi pm vga_controller bus_master cap_list
       configuration: latency=0
       resources: memory:b0000000-b0ffffff memory:a0000000-afffffff ioport:4000(size=64) memory:c0000-dffff

Solution 1:

This question has sort of been answered in a question concerning a blank screen. The solution is to install the 5.10 oem kernel. But that caused me to have another problem, my 11900k only turbos to 4.7ghz because for some reason the "powersave" governor in the kernel won't let it go higher. My workaround has been to use cpupower-gui and set all cores for 5.3 and change the governor to "performance" but that keeps the cpu revved up around 5k and about 5C hotter. BUT both of my monitors work even expanding the desktop.

sudo apt install linux-oem-20.04b -y
sudo apt install cpupower-gui -y

run cpupower-gui by typing it into the terminal. You will want to boot into the new kernel first of course and get your monitors working properly.

UPDATE 4/30/2021. I've upgraded to 21.04 but kept the 20.04b kernel. It complains about binaries when installing software but it runs. Today I updated my Asus Z590 Rog Strix bios from 0704 to 0707 and the cpu frequency issue went away, so no need to install cpupower-gui if you don't want to.

Update: 5/8/2021. I have discovered if I used "i915.force_probe=4c8a" in grub with 5.12, 5.12.1, 5.12.2, linux next, kernels etc I can boot ONE monitor only. For dual monitors using both ports I still must run the 20.04b (5.10.0.1023-oem) kernel.