From owner-freebsd-current@freebsd.org Sun Jan 31 03:39:01 2021 Return-Path: Delivered-To: freebsd-current@mailman.nyi.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mailman.nyi.freebsd.org (Postfix) with ESMTP id 6297A527707 for ; Sun, 31 Jan 2021 03:39:01 +0000 (UTC) (envelope-from delphij@delphij.net) Received: from anubis.delphij.net (anubis.delphij.net [64.62.153.212]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256 client-signature RSA-PSS (4096 bits) client-digest SHA256) (Client CN "anubis.delphij.net", Issuer "R3" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id 4DSxdK1ns2z4Rxl; Sun, 31 Jan 2021 03:39:01 +0000 (UTC) (envelope-from delphij@delphij.net) Received: from p51.home.us.delphij.net (unknown [IPv6:2601:646:8601:f4a:e670:b8ff:fe5c:4e69]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange ECDHE (P-384) server-signature RSA-PSS (4096 bits) server-digest SHA256) (Client did not present a certificate) by anubis.delphij.net (Postfix) with ESMTPSA id 7A0383BD22; Sat, 30 Jan 2021 19:38:54 -0800 (PST) Reply-To: d@delphij.net Subject: Re: UEFI boot hangs after loading kernel with efi_max_resolution="4k" To: d@delphij.net, freebsd-current@freebsd.org Cc: tsoome@freebsd.org References: <8a4b2d5c-fb19-9784-b104-d725a7992041@delphij.net> From: Xin Li Organization: The FreeBSD Project Message-ID: <31eef3f3-0fcf-fe24-0822-24e465b156b7@delphij.net> Date: Sat, 30 Jan 2021 19:38:53 -0800 MIME-Version: 1.0 In-Reply-To: <8a4b2d5c-fb19-9784-b104-d725a7992041@delphij.net> Content-Type: text/plain; charset=utf-8 Content-Language: en-US Content-Transfer-Encoding: 7bit X-Rspamd-Queue-Id: 4DSxdK1ns2z4Rxl X-Spamd-Bar: ---- X-Spamd-Result: default: False [-4.00 / 15.00]; REPLY(-4.00)[] X-BeenThere: freebsd-current@freebsd.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: Discussions about the use of FreeBSD-current List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sun, 31 Jan 2021 03:39:01 -0000 With Toomas's help (thanks!), I was able to partially resolve the hang and blank screen at boot issue, for the record, for now this can be solved by adding: screen.font="16x32" in /boot/loader.conf; no more efi_max_resolution setting is needed. Setting allscreen_flags to load font still panics the system, but at least the screen is now in a readable state, and kernel loads fine. I'll update this thread if I found something new. Cheers,