absent nomodeset, 11th Gen Intel Rocket Lake FCLGA1200 + b560 chipset hard lockup attempting boot

[Felix Miata]

No plymouth, so screen clears scrolling boot messages, then 4 new lines, last being:
Reached target Basic System.
Absent remote login, reset button is required to resume activity of any kind.

Is this a known problem solvable by some kernel cmdline option? F35, Tumbleweed
and Debian 11 with backport 5.14 kernel all do the same thing.

# inxi -Cyz
CPU:
  Info: 6-Core model: 11th Gen Intel Core i5-11400 bits: 64 type: MT MCP
  cache: L2: 3 MiB
  Speed: 2985 MHz min/max: 800/4400 MHz Core speeds (MHz): 1: 2494 2: 2388
  3: 3985 4: 3584 5: 2238 6: 2466 7: 3530 8: 3026 9: 3369 10: 3373 11: 2570
  12: 2319
# inxi -GMSayz
System:
  Kernel: 5.16.0-0.rc4.20211207gitcd8c917a56f2.30.fc36.x86_64 x86_64 bits: 64
  compiler: gcc v: 2.37-22.fc36
  parameters: BOOT_IMAGE=/boot/vmlinuz root=LABEL=<filter> noresume audit=0
  ipv6.disable=1 net.ifnames=0 consoleblank=0 nomodeset 3
  Console: pty pts/0 DM: SDDM Distro: Fedora release 36 (Rawhide)
Machine:
  Type: Desktop System: ASUS product: N/A v: N/A serial: N/A
  Mobo: ASUSTeK model: PRIME B560M-A v: Rev 1.xx serial: <filter>
  UEFI: American Megatrends v: 1203 date: 10/27/2021
Graphics:
  Device-1: Intel RocketLake-S GT1 [UHD Graphics 730] vendor: ASUSTeK
  driver: N/A alternate: i915 bus-ID: 00:02.0 chip-ID: 8086:4c8b
  class-ID: 0300
  Display: server: X.org 1.20.11 driver: loaded: modesetting
  alternate: fbdev,vesa
  Message: Advanced graphics data unavailable for root.

Using nomodeset, vttys all work in F35. With 5.16rc4 in Rawhide, vttys and X are
all black screen. Searching BZ I found nothing about Rocket Lake, RocketLake,
i5-11400 or "11th Gen". Same lack of hits on bugzilla.kernel.org.

I reported this bug yesterday against Leap 15.4alpha installer:
https://bugzilla.opensuse.org/show_bug.cgi?id=1193640
It got moved to kernel. Need I report on BRC, or is there a workaround Google
hasn't coughed up for me?
-- 
Evolution as taught in public schools is, like religion,
	based on faith, not based on science.

 Team OS/2 ** Reg. Linux User #211409 ** a11y rocks!

Felix Miata

[Felix Miata]

https://gitlab.freedesktop.org/drm/intel/-/issues/4762 created.

Felix Miata composed on 2021-12-13 01:15 (UTC-0500):

>  No plymouth, so screen clears scrolling boot messages, then 4 new
> lines, last being:
>  Reached target Basic System.
>  Absent remote login, reset button is required to resume activity of any kind.
>  
>  Is this a known problem solvable by some kernel cmdline option? F35, Tumbleweed
>  and Debian 11 with backport 5.14 kernel all do the same thing.
>  
>  # inxi -Cyz
>  CPU:
>    Info: 6-Core model: 11th Gen Intel Core i5-11400 bits: 64 type: MT MCP
>    cache: L2: 3 MiB
>    Speed: 2985 MHz min/max: 800/4400 MHz Core speeds (MHz): 1: 2494 2: 2388
>    3: 3985 4: 3584 5: 2238 6: 2466 7: 3530 8: 3026 9: 3369 10: 3373 11: 2570
>    12: 2319
>  # inxi -GMSayz
>  System:
>    Kernel: 5.16.0-0.rc4.20211207gitcd8c917a56f2.30.fc36.x86_64 x86_64 bits: 64
>    compiler: gcc v: 2.37-22.fc36
>    parameters: BOOT_IMAGE=/boot/vmlinuz root=LABEL=<filter> noresume audit=0
>    ipv6.disable=1 net.ifnames=0 consoleblank=0 nomodeset 3
>    Console: pty pts/0 DM: SDDM Distro: Fedora release 36 (Rawhide)
>  Machine:
>    Type: Desktop System: ASUS product: N/A v: N/A serial: N/A
>    Mobo: ASUSTeK model: PRIME B560M-A v: Rev 1.xx serial: <filter>
>    UEFI: American Megatrends v: 1203 date: 10/27/2021
>  Graphics:
>    Device-1: Intel RocketLake-S GT1 [UHD Graphics 730] vendor: ASUSTeK
>    driver: N/A alternate: i915 bus-ID: 00:02.0 chip-ID: 8086:4c8b
>    class-ID: 0300
>    Display: server: X.org 1.20.11 driver: loaded: modesetting
>    alternate: fbdev,vesa
>    Message: Advanced graphics data unavailable for root.
>  
>  Using nomodeset, vttys all work in F35. With 5.16rc4 in Rawhide, vttys and X are
>  all black screen. Searching BZ I found nothing about Rocket Lake, RocketLake,
>  i5-11400 or "11th Gen". Same lack of hits on bugzilla.kernel.org.
>  
>  I reported this bug yesterday against Leap 15.4alpha installer:
>  https://bugzilla.opensuse.org/show_bug.cgi?id=1193640
>  It got moved to kernel. Need I report on BRC, or is there a workaround Google
>  hasn't coughed up for me?--  
Evolution as taught in public schools is, like
religion,
	based on faith, not based on science.

 Team OS/2 ** Reg. Linux User #211409 ** a11y rocks!

Felix Miata