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[92.176.231.205]) by smtp.gmail.com with ESMTPSA id q12-20020a05600c2e4c00b0040648217f4fsm19250273wmf.39.2023.10.25.06.29.25 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 25 Oct 2023 06:29:26 -0700 (PDT) From: Javier Martinez Canillas To: Huacai Chen , Thorsten Leemhuis Subject: Re: Blank screen on boot of Linux 6.5 and later on Lenovo ThinkPad L570 In-Reply-To: References: <7c50e051-eba2-09fc-da9f-023d592de457@ristioja.ee> <31bdf7b1-0ed9-4217-b459-1d857e53120b@leemhuis.info> <82f1b533-3bd8-4418-843a-718d9a6b5786@leemhuis.info> Date: Wed, 25 Oct 2023 15:29:24 +0200 Message-ID: <87v8auhlu3.fsf@minerva.mail-host-address-is-not-set> MIME-Version: 1.0 X-Mimecast-Spam-Score: 0 X-Mimecast-Originator: redhat.com Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable X-BeenThere: dri-devel@lists.freedesktop.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Direct Rendering Infrastructure - Development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Linux regressions mailing list , Thomas Zimmermann , Evan Preston , Linux Kernel Mailing List , Linux DRI Development , Jaak Ristioja , Bagas Sanjaya Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" Huacai Chen writes: Hello, > On Wed, Oct 25, 2023 at 6:08=E2=80=AFPM Thorsten Leemhuis > wrote: [...] >> >> This additional report makes me wonder if we should revert the culprit >> (60aebc9559492c ("drivers/firmware: Move sysfb_init() from >> device_initcall to subsys_initcall_sync") [v6.5-rc1]). But I guess that >> might lead to regressions for some users? But the patch description says >> that this is not a common configuration, so can we maybe get away with t= hat? > From my point of view, this is not a regression, 60aebc9559492c > doesn't cause a problem, but exposes a problem. So we need to fix the > real problem (SIMPLEDRM has a blank screen on some conditions). This > needs Jaak or Evan's help. > I agree with this. > Huacai --=20 Best regards, Javier Martinez Canillas Core Platforms Red Hat