From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from gabe.freedesktop.org (gabe.freedesktop.org [131.252.210.177]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id D8A66C3A5A7 for ; Sun, 4 Dec 2022 23:16:56 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id E982710E02E; Sun, 4 Dec 2022 23:16:54 +0000 (UTC) Received: from dfw.source.kernel.org (dfw.source.kernel.org [IPv6:2604:1380:4641:c500::1]) by gabe.freedesktop.org (Postfix) with ESMTPS id F355C10E02E for ; Sun, 4 Dec 2022 23:16:48 +0000 (UTC) Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by dfw.source.kernel.org (Postfix) with ESMTPS id 5C93660F0D for ; Sun, 4 Dec 2022 23:16:48 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPS id C0EEDC433D7 for ; Sun, 4 Dec 2022 23:16:47 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1670195807; bh=8kP21hsGNBZwhNfuHi81RB/sKvpfEMtAe0BPIO2euJA=; h=From:To:Subject:Date:From; b=SdJUoU/ePT5PS8rxt93ipygPwquQQ9o2EUWD9x7xYFPCGa+Ax2ArkunVDuB8rTdIo QTQA4+hFfQQ5YJR8uNmsNrCxZteDEG40lNM3QTNxqQowu/z6nR9Y3ltE7TuAwhDxxD Y0y0DpCGEgEfuOEaWot2CXKpFskAZWob7ko1HF0GlgyGlYsxdGzTNWivtrBXU0D2rf saa3liYMOE+iIdsx1/2rHbw7xzBCBPnb+4CDMky0vHv6aIfbXRRovydmwt5haCYmbZ be7DqFsFnva6FOEjWD0g3tJWk7dIBEq8luhAD7y9KVm8SLBkoR9vCFX9TJTOYpA+SJ VFbuv4HIxWJ1g== Received: by aws-us-west-2-korg-bugzilla-1.web.codeaurora.org (Postfix, from userid 48) id AAAC9C433E7; Sun, 4 Dec 2022 23:16:47 +0000 (UTC) From: bugzilla-daemon@kernel.org To: dri-devel@lists.freedesktop.org Subject: [Bug 216774] New: On amdgpu the drm subsystem lists additional modes beyond what EDID has available Date: Sun, 04 Dec 2022 23:16:47 +0000 X-Bugzilla-Reason: None X-Bugzilla-Type: new X-Bugzilla-Watch-Reason: AssignedTo drivers_video-dri@kernel-bugs.osdl.org X-Bugzilla-Product: Drivers X-Bugzilla-Component: Video(DRI - non Intel) X-Bugzilla-Version: 2.5 X-Bugzilla-Keywords: X-Bugzilla-Severity: low X-Bugzilla-Who: wolfwings@gmail.com X-Bugzilla-Status: NEW X-Bugzilla-Resolution: X-Bugzilla-Priority: P1 X-Bugzilla-Assigned-To: drivers_video-dri@kernel-bugs.osdl.org X-Bugzilla-Flags: X-Bugzilla-Changed-Fields: bug_id short_desc product version cf_kernel_version rep_platform op_sys cf_tree bug_status bug_severity priority component assigned_to reporter cf_regression attachments.created Message-ID: Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable X-Bugzilla-URL: https://bugzilla.kernel.org/ Auto-Submitted: auto-generated MIME-Version: 1.0 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: , Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" https://bugzilla.kernel.org/show_bug.cgi?id=3D216774 Bug ID: 216774 Summary: On amdgpu the drm subsystem lists additional modes beyond what EDID has available Product: Drivers Version: 2.5 Kernel Version: 5.15.81 Hardware: All OS: Linux Tree: Mainline Status: NEW Severity: low Priority: P1 Component: Video(DRI - non Intel) Assignee: drivers_video-dri@kernel-bugs.osdl.org Reporter: wolfwings@gmail.com Regression: No Created attachment 303357 --> https://bugzilla.kernel.org/attachment.cgi?id=3D303357&action=3Dedit Single-resolution EDID (1080p120) that demonstrates the problem The attached EDID is one I've used across multiple operating systems, howev= er on Linux it creates the following additional modes at the DRM level visible with drm_info outside of X/Wayland from the CLI: 1680x1050@120.00 1280x1024@120.00 1440x900@120.00 1280x800@120.00 1280x720@120.00 1024x768@120.00 800x600@120.00 640x480@120.00 This EDID is being loaded via "drm.edid_firmware=3DeDP:edid.bin" and is pre= sent in the initramfs, and this happens both with the stock Ubuntu kernel and wh= en I compiled the latest 5.15.81 kernel from source, so I'm reporting it here. This might be a misconfiguration or some additional option I need to pass to the drm subsystem to disable some built-in mode-list it's adding by default= , or even fixed in later kernel versions and I was simply unaware, if so I apolo= gize for taking up your time! This EDID is meant to only have a single mode available, 1080p120. Changing= the EDID to use 1080p60 (only involves changing the pixel clock value for the single mode and EDID checksum) still has the same problem, and looking at t= he modes it appears it's just replacing the visible-pixel values with the smal= ler values and retaining all the other timing details so these seem to be auto-generated somewhere I can't find. --=20 You may reply to this email to add a comment. You are receiving this mail because: You are watching the assignee of the bug.=