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Date:      Wed, 27 Mar 2024 16:21:08 +0000
From:      bugzilla-noreply@freebsd.org
To:        acpi@FreeBSD.org
Subject:   [Bug 270707] Installer media doesn't boot on Thinkpad T14s Gen 3 (Ryzen 7 Pro 6850U)
Message-ID:  <bug-270707-16045-4IKrI8Wn48@https.bugs.freebsd.org/bugzilla/>
In-Reply-To: <bug-270707-16045@https.bugs.freebsd.org/bugzilla/>
References:  <bug-270707-16045@https.bugs.freebsd.org/bugzilla/>

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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D270707

--- Comment #36 from Matthias Lanter <freebsd@lanter-it.ch> ---
Maybe this case should be split up.

The reference in comment 35 and further research led me to this commit:
https://cgit.freebsd.org/src/commit/?id=3D9a7bf07ccdc1c7d5e6b514067a5d4175c=
ae9d56e

As can be seen in acpidump, an INT override is included:

  Type=3DINT Override
  BUS=3D0
  IRQ=3D1
  INTR=3D1
  Flags=3D{Polarity=3Dactive-lo, Trigger=3Dedge}

After I commented out the line 146 & 147 and recompiled the kernel, the
internal keyboard works without any problems.

Shouldn't this ACPI entry be given more weight than faulty old BIOS version=
s,
especially with the newer AMD Ryzen?

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