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docs(nh3-pve): BIOS-access paths for the IGFX fix — HDMI-only NanoKVM vs mini-DP RTX; esh-pve as known-good reference

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2026-09-25 14:06:37 -07:00
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servers/nh3-pve/README.md
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@@ -98,9 +98,22 @@ not power back on by itself.
above). above).
⚠ **Do the BIOS fix on that same visit.** AMT's KVM redirection captures only ⚠ **Do the BIOS fix on that same visit.** AMT's KVM redirection captures only
the Intel iGPU's framebuffer, so with the iGPU hidden as it is now, AMT KVM would the Intel iGPU's framebuffer, so with the iGPU hidden as it is now, AMT KVM would
be just as blind as the NanoKVM. Order: while the NanoKVM is still here (on the be just as blind as the NanoKVM. Order: set Primary Display = IGFX, provision
RTX through an adapter), set Primary Display = IGFX, provision MEBx, confirm AMT MEBx, confirm AMT KVM shows the console, and only then move the NanoKVM to the
KVM shows the console, and only then move the NanoKVM to the gx10. gx10.
**Reaching the BIOS** (2026-09-25 facts). The NanoKVM input is HDMI, the RTX has
mini-DP only, and the adapters on hand are mini-DP→DP only. The paths:
(1) an **active** mini-DP→HDMI adapter to feed the NanoKVM, since a passive one
depends on DP++; (2) a DisplayPort monitor plus a USB keyboard at the rack;
(3) pull the card, boot on the iGPU, set IGFX explicitly (not Auto), then refit
the card. The NIC pins make a card-out boot safe.
`systemctl reboot --firmware-setup` works here (`OsIndicationsSupported` bit 0
set), so nobody has to catch the Del key at POST.
**An OS-side patch is not possible:** the AMI `Setup`/`SaSetup` variables are not
runtime-visible here, unlike on the gx10.
**Known-good reference: esh-pve.** Same MS-01, same BIOS `AHWSA.1.17`, same RTX
2000E, and its `00:02.0` is present with `boot_vga=1`. The target state works on
this hardware.
## Refresh state ## Refresh state