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 93A36C55172 for ; Tue, 4 Aug 2026 08:48:11 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id C6CB410E129; Tue, 4 Aug 2026 08:48:10 +0000 (UTC) Authentication-Results: gabe.freedesktop.org; dkim=pass (2048-bit key; unprotected) header.d=kernel.org header.i=@kernel.org header.b="BoVsYl+Z"; dkim-atps=neutral Received: from tor.source.kernel.org (tor.source.kernel.org [172.105.4.254]) by gabe.freedesktop.org (Postfix) with ESMTPS id AB31D10E129 for ; Tue, 4 Aug 2026 08:48:08 +0000 (UTC) Received: from smtp.kernel.org (transwarp.subspace.kernel.org [100.75.92.58]) by tor.source.kernel.org (Postfix) with ESMTP id C11E260A75 for ; Tue, 4 Aug 2026 08:48:07 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPS id 71C6AC2BCF5 for ; Tue, 4 Aug 2026 08:48:07 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1785833287; bh=F1oCHQ2mTVVJFzX3Qut2ycI7vonafQ5B39+vbHw51Dc=; h=From:To:Subject:Date:In-Reply-To:References:From; b=BoVsYl+ZgIPeXtiNXLHCWhsLe+PDmLEDMgoDSfAF+CHu659yi0Mho3D2AyojDORkY 7+AR7j8G+U4RhGKyjPqdDXB0ZpbiwSXM0avGSYihbEOjifxpC/McTO3+cj4b7QIZge Xl+fh2jZcZ1ri78gAmaw9rhx97c+W6zWhA2ZFTnZFfkw5OiNpl0FrAxLryvZAIHyET SeQB6a94WGPKmOC3MPbILJzwm3CP6YsXnc7u+5ZKC9wPzU6AzUVw54buwyoCYo9lcZ pwSSwMMplL8RnxV9172l4YvFeelaeTicBDAtlqp/fydXyxeQXpcML6HjZmbSnG87yL T1a8h6rLsswfA== Received: by aws-us-west-2-korg-bugzilla-1.web.codeaurora.org (Postfix, from userid 48) id 538AAC41612; Tue, 4 Aug 2026 08:48:07 +0000 (UTC) From: bugzilla-daemon@kernel.org To: dri-devel@lists.freedesktop.org Subject: [Bug 221827] Backlight regression with 7.1.6 Date: Tue, 04 Aug 2026 08:48:07 +0000 X-Bugzilla-Reason: None X-Bugzilla-Type: changed 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: normal X-Bugzilla-Who: regressions@leemhuis.info X-Bugzilla-Status: NEW X-Bugzilla-Resolution: X-Bugzilla-Priority: P3 X-Bugzilla-Assigned-To: drivers_video-dri@kernel-bugs.osdl.org X-Bugzilla-Flags: X-Bugzilla-Changed-Fields: cc Message-ID: In-Reply-To: References: 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=3D221827 The Linux kernel's regression tracker (Thorsten Leemhuis) (regressions@leem= huis.info) changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |mario.limonciello@amd.com, | |regressions@leemhuis.info --- Comment #1 from The Linux kernel's regression tracker (Thorsten Leemhui= s) (regressions@leemhuis.info) --- (In reply to Raymond Jay Golo from comment #0) > Upon upgrading to 7.1.6, backlight at 100% is set to dimmest level. @Mario, this is apparently caused by the following change of yours that was backported to 7.1.y: f1b5d8f9cc54ae ("drm/amd/display: Fix backlight max_brightness to match exported range") [v7.2-rc4, v7.1.6 (1191285ecb4233), v6.18.42] @Raymond: This might be a general problem or something specific to the backport. Testing 7.2-rc6 or later is thus advised. You might also want to attach dmesg files separately from a working and a broken kernel, as they m= ost likely will be helpful for debugging. --=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.=