From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-lf1-f44.google.com (mail-lf1-f44.google.com [209.85.167.44]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id BDF761DA23 for ; Sat, 27 Jul 2024 16:52:29 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.167.44 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1722099151; cv=none; b=RS5hJuT/bjfO6ejh9RiJR7uOgYeWY5VYn5U/g8+vhnAyxX4xpw7bZ05bUqHHGgK2J7kIBJ9ZMOLz2AwqbiN92IeBVla6qg5EC+CPLxjRzn7fvWs44bQdnnVTh4l5kNhhS5sZWrFmv5cncdiyEx1RDwEPzr6VqBHMB1a+yOmSB+w= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1722099151; c=relaxed/simple; bh=Kt3UTHXY6pUS1uNOKixy1D9DX1Rs2NDL7dotc9CQrko=; h=Date:From:Subject:To:Cc:Message-Id:MIME-Version:Content-Type; b=i5LPeL2E9dEZfYq8uXhi7Bp0fKHlDoCxaukfkcTvc/9GvEghvCNhR3WxxOjzVBed8xRnFLzByZsZdVbrf6bdHjzP3tKqxeqNfDnwWRKRRHbMAm/GxAdz0MbuMy1w/VKnZAv53mZIGYJkZdPWmhqq7RR3XvE+9j3/ARquJjRa8Iw= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=gmail.com; spf=pass smtp.mailfrom=gmail.com; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b=d3LMC3O9; arc=none smtp.client-ip=209.85.167.44 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=gmail.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=gmail.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="d3LMC3O9" Received: by mail-lf1-f44.google.com with SMTP id 2adb3069b0e04-52ed741fe46so2369139e87.0 for ; Sat, 27 Jul 2024 09:52:29 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20230601; t=1722099148; x=1722703948; darn=lists.linux.dev; h=mime-version:message-id:cc:to:subject:from:date:from:to:cc:subject :date:message-id:reply-to; bh=32TR7SGEwzQNHi8BSEjhZCZbMRgIoVZcq32HmZiwQ2g=; b=d3LMC3O9jg0FcXf4g4BPspPvnfKYuTz0B4mB2msoOWezkfmFcRDItd1U63Nl5JvIDs YrlmssFP3lDZqRhC2QoV4iNLTsQMtqNwA+EdgnOTEPwX7fDM0R5lPaIT+P2UIfCrfuAW 6FKWw8JQ9si1Xq2FjTf/+et+Bvda96glF5krfCb36H4TrYJzpY+iNSXgyaTTKdnLY1tC jjm+ycD3whd9CuhowcoWe2mCu1BwnbdJf3gYsNTW+7Kqab7B7CA82kc/cS5bYILctAAb o0GUIUeH7UXts2utvGXbE06TYdTZ2PCSuVIizpRKgpRsBT6AoTZLg6U9B1+a/TMaHTGz HDHQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1722099148; x=1722703948; h=mime-version:message-id:cc:to:subject:from:date:x-gm-message-state :from:to:cc:subject:date:message-id:reply-to; bh=32TR7SGEwzQNHi8BSEjhZCZbMRgIoVZcq32HmZiwQ2g=; b=hQUaMCxXup6FshLas6QWfv+bU/D9WMZUTbGTm7SB/p4ZIGXgMln1E3sXUkUD3RXHVB YqOdRJhPRAV3wh+IEfNpU8NLDA7llwigZqBrKxTn+B0tVYwuBG/B+gzkrLEuWaDhvAdW ILUTiyCEUc26tuL+ycjHOrq2pYNsyXPfkjob/VYSvC1JnnyG+cfFcx7F74G3U0MpsmzY oHmFYpVEZgYTmpSrYZaVIKhE8D6C7hh60cBsabv0VSF0tIijSX+uZ2nOTPQjgS2Tdr6p eAPqndD0L0mSzEicbh00YFkAcl81+O5FFD0NBHm+aPVwXITabJeTzU2KGN/G5BKBrSAB O/Cg== X-Gm-Message-State: AOJu0YwIt3SPyiW7+9XT3rvutdZ4UIYgiT809SC3hitLHwKWrYXfkxP3 oxM5ai2COW2R5HtJg9oB7xQLr9SRYrBt4Iso62NbbcrTxOhAIjkXmQR4RpCi X-Google-Smtp-Source: AGHT+IGuAop1O4/gAYTT5gL+X62ar7kjLB5+Ie9wR9wU6dXF9aYRZO7tFMq0G/kr9w7fDqsKQUzmGg== X-Received: by 2002:a05:6512:451:b0:52f:d128:bd13 with SMTP id 2adb3069b0e04-5309b2c39d0mr1685683e87.39.1722099147651; Sat, 27 Jul 2024 09:52:27 -0700 (PDT) Received: from [192.168.1.69] ([93.170.44.26]) by smtp.gmail.com with ESMTPSA id 2adb3069b0e04-52fd5bc42ecsm808811e87.49.2024.07.27.09.52.26 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sat, 27 Jul 2024 09:52:27 -0700 (PDT) Date: Sat, 27 Jul 2024 19:52:19 +0300 From: serg.partizan@gmail.com Subject: [REGRESSION] Brightness at max level after waking up from sleep on AMD Laptop To: stable@vger.kernel.org Cc: regressions@lists.linux.dev, mario.limonciello@amd.com, hamza.mahfooz@amd.com, alexander.deucher@amd.com Message-Id: <77KAHS.13UUH2XVHQQF1@gmail.com> X-Mailer: geary/46.0 Precedence: bulk X-Mailing-List: regressions@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii; format=flowed Hello, After updating from 6.8.9 to 6.9.1 I noticed a bug on my HP Envy x360 with AMD Ryzen 5 4500U. #regzbot introduced: v6.8.9..v6.9.1 After waking up from sleep brightness is set to max level, ignoring previous value. With the help of Arch Linux team, we was able to track bad commit to this: https://gitlab.freedesktop.org/agd5f/linux/-/commit/63d0b87213a0ba241b3fcfba3fe7b0aed0cd1cc5 I have tested this on latest mainline kernel: Results after waking up: > cat /sys/class/backlight/amdgpu_bl1/{brightness,actual_brightness} 12 252 Then, on exact this commit (63d0b87213a0ba241b3fcfba3fe7b0aed0cd1cc5), result is the same. Then, on commit just before this one (aeaf3e6cf842): > cat /sys/class/backlight/amdgpu_bl1/{brightness,actual_brightness} 12 12 I hope I included all relevant information, more info can be found here: https://gitlab.archlinux.org/archlinux/packaging/packages/linux/-/issues/52