[Bug 270707] Installer media doesn't boot on Thinkpad T14s Gen 3 (Ryzen 7 Pro 6850U)

https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=270707

Michael Dexter <editor@callfortesting.org> changed:

           What    |Removed                     |Added
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                 CC|                            |editor@callfortesting.org

--- Comment #9 from Michael Dexter <editor@callfortesting.org> ---
I am seeing this same issue on the same hardware with 13.1R, 13.2R, and for
this testing, 14.0-CURRENT-amd64-20230427-60167184abd5:

1. Upgrading from BIOS 1.30 to R23ET65W 1.35 did not resolve it.

2. The last lines of the kernel messages until it stops:

...
psm0: model Generic PS/2 mouse, device ID 0
battery0: <ACPI Control Method Battery> on acpi0
acpi_acad0: <AD Adapter> on acpi0
<Block cursor, no blink, keyboard input ignored>

3. Highlights of messages during verbose boot:

...
pcib0: allocated type 3 (0xef800-0xeffff) for rid 0 of orm0
ahci_isa_identify: 0 ioport 0xc00 alloc failed
...
ahci_isa_identify: 14 ioport 0xec00 alloc failed
isa_probe_children: disabling PnP devices
...
<existing devices, skipping>
sc0 failed to probe on isa0
vga0 failed to probe on isa0
pcib0: allocated type 4 (0x3f0-0x3f5) for rid 0 of fdc0
pcib0: allocated type 4 (0x3f7-0x2f8) for rid 0 of fdc0
fdc0 failed to probe at port 0x3f0-0x3f5,0x3d7 irq 6 drq 2 on isa0
ppc0: cannot reserve I/O port range
ppc0 failed to probe at irq 7 on isa0
pcib0: allocated type 4 (0x3f8-0x3f8) for rid 0 of uart0
uart0 failed to probe at port 0x3f8 irq 4 on isa0
pcib0: allocated type 4 (0x2f8-0x2f8) for rid 0 of uart1
<Block cursor, no blink, keyboard input ignored, no mention of acpi_acad0>

4. Disabling "CPU Power Management" in BIOS under Config: Power did not help
(A user suggested that BIOS changes on a Gen 1 might help but could not recall
them)

5. Possibly related?

https://forums.lenovo.com/t5/ThinkPad-11e-Windows-13-E-and/ThinkPad-E485-E585-Firmware-bug-ACPI-IVRS-table/m-p/4191484

Thank you!

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