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 E7B91C83F1A for ; Fri, 11 Jul 2025 05:20:46 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 3E90110E9A9; Fri, 11 Jul 2025 05:20:46 +0000 (UTC) Authentication-Results: gabe.freedesktop.org; dkim=pass (2048-bit key; unprotected) header.d=kernel.org header.i=@kernel.org header.b="CVmnjnce"; dkim-atps=neutral Received: from dfw.source.kernel.org (dfw.source.kernel.org [139.178.84.217]) by gabe.freedesktop.org (Postfix) with ESMTPS id 86EC410E9A9 for ; Fri, 11 Jul 2025 05:20:45 +0000 (UTC) Received: from smtp.kernel.org (transwarp.subspace.kernel.org [100.75.92.58]) by dfw.source.kernel.org (Postfix) with ESMTP id 850195C41E7 for ; Fri, 11 Jul 2025 05:20:44 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPS id 365A2C4CEED for ; Fri, 11 Jul 2025 05:20:44 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1752211244; bh=FL1hPr58+R3MrJ3dFY8stkSZZVc9wE9uJjmNsQyxKM8=; h=From:To:Subject:Date:In-Reply-To:References:From; b=CVmnjncee62oolwznH4z0zpviU/Mh698PaF2HcAlTgKLUGBv4KNa9+mbWZBov93Xa tP1k/Q9Js1NSROz16qB7y8MVHRI8l9/0G0CH5Zl3dLJPe/rUDtDdDpHB+HnqitXv6b TBO4nF3NKmYvkXwZ+oH6ZBJcLmSx9NNTOkwfM+quD0JXcnu2/TDuwIsgFpOJVZpHEd nXY01Mih8Lc0oyrww70bUIrA6twV6Jep6FlBr8e3MLZS4wE5TJdEpLwbzRgoq4eewH Pzk38wxz5AC/0/kmg5WSNDPdiF3arfv9ff1QX0Uhq+8tXFA5Rv+O7Fy/NXVDkEIDg+ U666AV0AGszDA== Received: by aws-us-west-2-korg-bugzilla-1.web.codeaurora.org (Postfix, from userid 48) id 2E7EBC41612; Fri, 11 Jul 2025 05:20:44 +0000 (UTC) From: bugzilla-daemon@kernel.org To: dri-devel@lists.freedesktop.org Subject: [Bug 220326] Mismatch between the meanings of brightness and actual_brightness Date: Fri, 11 Jul 2025 05:20:44 +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: kernvirt@gmail.com 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: 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=3D220326 --- Comment #2 from Van (kernvirt@gmail.com) --- Update 2: I'm tested Ubuntu 25.04 with kernel 6.14, amdgpu_bl1, and brightn= ess works the same as on Debian with 6.12 lts, But for some reason on Fedora and Arch with kernels 6.14 and 6.15.5 the brightness is non-linear, as I said earlier, That is, the meaning of brightness does not match with the meaning= of actual brightness.=20 Model of laptop: ASUS Vivobook go E1504FA --=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.=