From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-qt1-f174.google.com (mail-qt1-f174.google.com [209.85.160.174]) (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 CA02A3164A5 for ; Wed, 10 Sep 2025 15:17:32 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.160.174 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1757517454; cv=none; b=ijozufZCCAk+Ms9LSlbWrcuVcuU165ApPt50YobOpc/K0iwD39Q93P4vqUn3cR0FzfjHcq7NSfrFm3G+2uE7R5h2xyTTRODk6Cw6aGUPfStdJ30HZX6HplGC5be8OBZnh/MjI56RtvL3xECfBQn8c93oe0sWZNnVa/hIBO5zf2w= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1757517454; c=relaxed/simple; bh=RlwBJKFczL391OBuoRLS65aYjJYRk8LexlJl9+TvLd0=; h=MIME-Version:From:Date:Message-ID:Subject:To:Cc:Content-Type; b=cuVLebxZqwGSKit1ldqY3csdcSlPr0FEe4TtuQcTlUxeUixVgztBKtjSirw9WkRp4RownOR2QRtMN5etHM03H81Bz59nhlvFW+uezm0PS6OOzfa6smJ8rhdMceHZolSKLZ6rvQfussSQu+IAD8LU/YKkWhH8QF73XorsiwqJ4Fg= 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=VG2k820X; arc=none smtp.client-ip=209.85.160.174 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="VG2k820X" Received: by mail-qt1-f174.google.com with SMTP id d75a77b69052e-4b490287648so112161321cf.2 for ; Wed, 10 Sep 2025 08:17:32 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20230601; t=1757517452; x=1758122252; darn=vger.kernel.org; h=cc:to:subject:message-id:date:from:mime-version:from:to:cc:subject :date:message-id:reply-to; bh=C1mzq7QAamyCDgZjqIwsPENWf0k+ggNwYSd/FkLWnRs=; b=VG2k820XySOeymjBAER8qVyXedJN6R0p9ilLo03s5Z4chxOH0eHqAxmxvsicKuRqUs ID07AjTIck/EwAVi+O6c96sDLrm23k/Fjj3IIK/Zev+3y7YRjyDPU1zy51x1k97FNQjD 7/lEPegGbmWUySguO/kdI2sfV+M5JSoVPzjt4OHugFU1mmcp0m1esXvTyQcuOdlOeK7X Tx8gQ29LUMP7T0jzr5QsfdvoF35v0AMc8X8XRdGepusGIBK59EHwzGUmereB3hn5vZXp NRXRacUqagkarlBysf5S++ibIXNfDxcQ7Hr14jBE38iqZUTKiTpaKlX37Md3aMjx2gUc favg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1757517452; x=1758122252; h=cc:to:subject:message-id:date:from:mime-version:x-gm-message-state :from:to:cc:subject:date:message-id:reply-to; bh=C1mzq7QAamyCDgZjqIwsPENWf0k+ggNwYSd/FkLWnRs=; b=SVWtcg//WiPNNT5OS/A1kSR5G22zPbP2wXO6Z4G4Lg8cztq9bDHnQ20QL4m/V2vrZe KbsEHhCjp3BV6zuewBsR9Zq/JQYFSVj2rc9bi7yiTMLj0uiM1Q5nDJe037JeOD6b065w z+/bjVF8+9t4L9xQgj979/bN7lnrmg1VEGwNOgO+NYqm8O+bRMKqP53khRU1rgjWdXoL CbHpgVPf3ZJNblPnyJT+iVQC1j5FLQTDTzcu4OAS5RL1yOW19PiELHvCmN2FE8GFHoYp Jp1bbcpNagSm4+8rQI143VMudpHt5rTtPAULay0cqntqlQ1TUPCqDnAw4z45YMc+E/C+ ko0Q== X-Forwarded-Encrypted: i=1; AJvYcCV79FjIQynSmIW0qAncucAHXoQgVdkSFHMwpWXKGj8+esj0rMIlMZ77y0pF6U6dXIHQ8Df7AGFqkrOs9Rg=@vger.kernel.org X-Gm-Message-State: AOJu0YxdXpvdFXU3cXVugG0j5htADG5kT5zKkaUu6O37lhVDP3hrFYgy 4kwZjj9F8tQ+awxKSJvxjGA0GJvlm4T+UiHkSnqcPXmAZM0CRmuxHpohJxO7r8i/P1ZOhQl+2ZD Ll2DBV6Pzn/+2vxZZ34kSseO/SaoftQw= X-Gm-Gg: ASbGncu3laTB0dGKwMP+FtDH/gOUJ2ph6HTP46y2AGCy1muwhJglplvMYuM2rOLcJNS Jx4iqmxsvg+z3ZvuEcVSxPsf4Wce3sodKCAPUk7M3/Pxhd6k6ophi0CMbQWeAhhB6JrBL06AKpQ Pcs70TtYUIw6uuYAU97uff9i7VftZWQXVkLjghLgavw+hDtQChlLGXK4tgvkbD16PWxGYvdPHQ6 14VfQEyPBvNLfpo X-Google-Smtp-Source: AGHT+IEn8qLkTWj3W7cFUn0zV2zlgKzDIbStPJ8mNqM9yeK3nj1hkEfb6zWsFfNBsnId52FU4XUstuGirGgUZY2sHX0= X-Received: by 2002:a05:622a:180a:b0:4b4:3788:baae with SMTP id d75a77b69052e-4b5f844743cmr179099701cf.43.1757517450398; Wed, 10 Sep 2025 08:17:30 -0700 (PDT) Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 From: Vicente Bergas Date: Wed, 10 Sep 2025 17:17:19 +0200 X-Gm-Features: Ac12FXxyvwjkGBqU5CGnwwYoBL_GhGR4Pi-bYCMRWWnvxg2lK5-1tJY_LVyPzDg Message-ID: Subject: Re: [PATCH v13 3/4] drm/atomic-helper: Re-order bridge chain pre-enable and post-disable To: aradhya.bhatia@linux.dev Cc: Laurent.pinchart@ideasonboard.com, airlied@gmail.com, alexander.sverdlin@siemens.com, andrzej.hajda@intel.com, devarsht@ti.com, dri-devel , j-choudhary@ti.com, jernej.skrabec@gmail.com, Jonas Karlman , Linux Kernel Mailing List , lumag@kernel.org, maarten.lankhorst@linux.intel.com, mripard@kernel.org, neil.armstrong@linaro.org, nm@ti.com, rfoss@kernel.org, simona@ffwll.ch, tomi.valkeinen@ideasonboard.com, tzimmermann@suse.de, vigneshr@ti.com Content-Type: text/plain; charset="UTF-8" Hi, this patch causes a regression. It has been reported in https://bugzilla.kernel.org/show_bug.cgi?id=220554 It affects the gru/kevin platform (arm64,RK3399) with the Panfrost DRM driver. When it boots in console mode, the blinking of the cursor keeps the display on. If it is turned off via /sys/class/graphics/fbcon/cursor_blink, then the display briefly shows each key press presented on screen for less than one second and then powers off. When starting the graphical mode (wayland), if there are no applications drawing on the screen, the only way to keep the display on is by continuously moving the mouse. Regards, Vicente.