[coreboot - Bug #517] lenovo x230 boot stuck with connected external monitor

Vasily Evseenko <[email protected]>
Newsgroups gmane.linux.bios
Message-ID <[email protected]>
Issue #517 has been updated by Vasily Evseenko.


Matt DeVillier wrote in #note-1:
> have you tried other payloads? This might be a SeaBIOS issue and not a coreboot one.

No, I haven't tried other payloads like embedded grub, but it also doesn't reach coreboot boot menu (where I can run memtest for example).
It seems that something broken in video adapter init (intel core graphics) because if I boot with external monitor detached then boot succeeded.
Monitor detach after boot start doesn't solve the problem.

How to configure coreboot to boot debian 12 with non-seabios payload?

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Bug #517: lenovo x230 boot stuck with connected external monitor
https://ticket.coreboot.org/issues/517#change-1713

* Author: Vasily Evseenko
* Status: New
* Priority: High
* Target version: none
* Start date: 2023-12-04
* Affected versions: 4.21
* Affected hardware: Lenovo x230
* Affected OS: any
----------------------------------------
Coreboot releases 4.21 and 4.22.01 have a bug.
If lenovo x230 laptop has connected external monitor then boot stuck on Seabios greeting.
Boot without external monitor always succeeded.
Last release without bug is 4.20.1
Coreboot config attached.

---Files--------------------------------
.config (19.4 KB)


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