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 vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 72528C433F5 for ; Tue, 7 Dec 2021 00:21:08 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1348536AbhLGAYh (ORCPT ); Mon, 6 Dec 2021 19:24:37 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:46332 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1378150AbhLGAYg (ORCPT ); Mon, 6 Dec 2021 19:24:36 -0500 Received: from mail-il1-x132.google.com (mail-il1-x132.google.com [IPv6:2607:f8b0:4864:20::132]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 921C6C061746 for ; Mon, 6 Dec 2021 16:21:07 -0800 (PST) Received: by mail-il1-x132.google.com with SMTP id j21so12018210ila.5 for ; Mon, 06 Dec 2021 16:21:07 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=jetfuse-net.20210112.gappssmtp.com; s=20210112; h=message-id:date:mime-version:user-agent:content-language:to:cc:from :subject:content-transfer-encoding; bh=OEQUVEa0On1ROZyo178VS8SIuI0aMzycc5+XI+5sljo=; b=EwLlaKoxdvgbwOrkZLIBPnC6fAkMhLIAERRHbWcHMQTpQseRL9lL8iVEkzhIvn4Ztb sGzon4371/F+BFhHn2tgwrp4C+yME+Ob4WV4sW9Ziz2UaDGHQpdnlo+/oh1OM85fYmjB ktfLxdaxguKdUDEXsziEBTH8RL5+1FtQi/AJ/rcvsmUYFLSdR+RzzLwjX/RcaqBQ7vun pPur+xMNprJIsUbMyM1GS1O05KDx5KX44j5HLmz6V/8ypV4ap07hZiRuBXhhJ0HrpDhD 9CP7BYtWz/0L9bN4dAshSnaGNnrvWYa48nRxUlG3mCu/WyzITDXJHXeIyMpMI5waiife D3Zw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:message-id:date:mime-version:user-agent :content-language:to:cc:from:subject:content-transfer-encoding; bh=OEQUVEa0On1ROZyo178VS8SIuI0aMzycc5+XI+5sljo=; b=etv4Ff862Y1bt5DM8LyrJ33Gv7np0n5GJc3ZP08VKK0p6p8eomQM3EK4kV4KEfmNh9 FsThxoYUXDH3FeUeJw2Th1v92zat0SgcmE9Ec34feq6tAJM1t/Xf54DZyT1F8RTv2Krj 8LMcDF4k1Y4dlzDxFYRGZZoQCyW7iVWd7wRH9GlIzVr54JLtSgvAe4PaG2HK32FcKEYd CFfBO46Y1yxOAh14nWPtiVTB+sTNkT06CLI5Pnl8HR6dVvgdmw1g0qLu+egFtIIdgavX 5CA+m3U0esfd+0Plz6LHkrUSLXwxpByLb7IxVq8uh8EymcWfpwseTPOwOzUEtHL8WLQT LVeA== X-Gm-Message-State: AOAM53307O7HTbWxg2j6TfFntvSfGuUIKhWAQpeZb4KcPEDw9322aj7e Mf9lFJmCewjTwN4dL9Pk+Da63FCyNqcNhA== X-Google-Smtp-Source: ABdhPJzJybdYG7+lMlmQbWMtPW+OOlSe+zP9KC9Tz+jZWspSGRY8bdGDoMvSKze/hFxYyW5Ap4H9JA== X-Received: by 2002:a05:6e02:1749:: with SMTP id y9mr33878565ill.123.1638836466945; Mon, 06 Dec 2021 16:21:06 -0800 (PST) Received: from [192.168.1.15] (174-082-179-210.res.spectrum.com. [174.82.179.210]) by smtp.gmail.com with ESMTPSA id j21sm8468354ila.6.2021.12.06.16.21.06 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Mon, 06 Dec 2021 16:21:06 -0800 (PST) Message-ID: <8a27c986-4767-bd29-2073-6c4ffed49bba@jetfuse.net> Date: Mon, 6 Dec 2021 18:21:05 -0600 MIME-Version: 1.0 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:91.0) Gecko/20100101 Thunderbird/91.3.0 Content-Language: en-US To: pjones@redhat.com Cc: linux-fbdev@vger.kernel.org From: Brandon Nielsen Subject: [Bug Report] Desktop monitor sleep regression Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit Precedence: bulk List-ID: X-Mailing-List: linux-fbdev@vger.kernel.org Monitors no longer sleep properly on my system (dual monitor connected via DP->DVI, amdgpu, x86_64). The monitors slept properly on 5.14, but stopped during the 5.15 series. I have also filed this bug on the kernel bugzilla[0] and downstream[1]. I have performed a bisect, first "bad" commit to master is 55285e21f04517939480966164a33898c34b2af2[1], the same change made it into the 5.15 branch as e3b39825ed0813f787cb3ebdc5ecaa5131623647. I have verified the issue exists in latest master (a51e3ac43ddbad891c2b1a4f3aa52371d6939570). Steps to reproduce: 1. Boot system (Fedora Workstation 35 in this case) 2. Log in 3. Lock screen (after a few seconds, monitors will enter power save "sleep" state with backlight off) 4. Wait (usually no more than 30 seconds, sometimes up to a few minutes) 5. Observe monitor leaving "sleep" state (backlight comes back on), but nothing is displayed [0] - https://bugzilla.kernel.org/show_bug.cgi?id=215203 [1] - https://bugzilla.redhat.com/show_bug.cgi?id=2028613