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 7BBE8C4332F for ; Wed, 8 Nov 2023 00:11:51 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id D1AE210E6D0; Wed, 8 Nov 2023 00:11:50 +0000 (UTC) Received: from mail-pj1-x102b.google.com (mail-pj1-x102b.google.com [IPv6:2607:f8b0:4864:20::102b]) by gabe.freedesktop.org (Postfix) with ESMTPS id D985F10E6D0 for ; Wed, 8 Nov 2023 00:11:48 +0000 (UTC) Received: by mail-pj1-x102b.google.com with SMTP id 98e67ed59e1d1-2809414efa9so5025523a91.1 for ; Tue, 07 Nov 2023 16:11:48 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20230601; t=1699402308; x=1700007108; darn=lists.freedesktop.org; h=content-transfer-encoding:subject:from:cc:to:content-language :user-agent:mime-version:date:message-id:from:to:cc:subject:date :message-id:reply-to; bh=o5FTMnIkfAnWQrINqJsE9vGOX5Y79juiKePAWCBp2xQ=; b=HAdJmfOaU13digVBwYgEN6xnedCaieg4XSUjDve3qBr4nFSslxzLTztv44logKEklL +3iJnnV7GViHutyx1dlsPTQ/qMUtxQv8giHsl7uZ+nkorNTDecaSCRDJyGk2CH/Q3Rf/ C76Wd/iBlL8vZiVJLiL35xxNesS5FHSkDw0nKD9JI5mObiW5z/CdwZzIqETDa/BJpFNr cSv+K1fIi0tkGOpAgdFaabPzF/PWETi3Kofa7nDueV5N/yjdEPyPMUW/03OCFI/Rrnti snL+W3g0WEvVF/ViQ/y2CiedqYN4VMWcotfilNpCdkdOgTkBsZZgBBn+SL6wIuso0j8Z l7Jw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1699402308; x=1700007108; h=content-transfer-encoding:subject:from:cc:to:content-language :user-agent:mime-version:date:message-id:x-gm-message-state:from:to :cc:subject:date:message-id:reply-to; bh=o5FTMnIkfAnWQrINqJsE9vGOX5Y79juiKePAWCBp2xQ=; b=qQ2Pt4rCb1IViQGkjqhbKkDkcYFhRTmVpX0coFxc25Y8RQ+rVJZzVia7fNWMSrAG6+ Y/id76kiSxa/hhm2MzBNk/M+IP9wLWFt8qW4q9RQJvE2s34XFDJ+YOHKO9EZa8XqOvdB DPEbHwb5LWwzrdVWun8vpg44G41Ikb/Sa/gf8PliZnNrwzPJrP2U/HcsBv0vb0MYpqM4 S7KuMI2pObkYgjgZUvx5kQymPWSW4kCyF2fneMAMAsQm0lZ/MIgzZHyuAjQYW7oDw1yV ZCKE8aXQycdZz3tRsCh+QK3RvyrPrcYt6DCMbVVPDeXZq0X9H/b6FK3Ly7+8c7ZExqNk 7mGA== X-Gm-Message-State: AOJu0YxxiaLc+nJODGnSTlGNjIFtU4v/czJOjTYE3JTDRpKgI0N6eN8c Lm1YV8+ldJLlnv9njyy2n/A= X-Google-Smtp-Source: AGHT+IFKm49M/VNzE67GA8NDQr1TupQFHjgD/NPr5R/pbLEg4jII8BqgTf96Oyl2ntsD/3uIsg4c6A== X-Received: by 2002:a17:90b:4a88:b0:280:1a19:6dd5 with SMTP id lp8-20020a17090b4a8800b002801a196dd5mr219806pjb.36.1699402308282; Tue, 07 Nov 2023 16:11:48 -0800 (PST) Received: from [192.168.0.106] ([103.131.18.64]) by smtp.gmail.com with ESMTPSA id w7-20020a17090aad4700b00280fcbbe774sm352767pjv.10.2023.11.07.16.11.44 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Tue, 07 Nov 2023 16:11:47 -0800 (PST) Message-ID: Date: Wed, 8 Nov 2023 07:11:36 +0700 MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Content-Language: en-US To: Linux Kernel Mailing List , Linux Regressions , Linux DRI Development , Linux Virtualization From: Bagas Sanjaya Subject: Fwd: 01f05940a9a75e11a2be64993c44ad8dd06e6e26 causes Wayland servers to flicker in non-gl virtio QEMU cards Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit 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: , Cc: bluescreen_avenger@verizon.net, Javier Martinez Canillas , Maxime Ripard , Gurchetan Singh , Gerd Hoffmann , Thomas Zimmermann , David Airlie , Christian Hergert Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" Hi, I notice a regression report on Bugzilla [1]. Quoting from it: > It seems that commit 01f05940a9a75e11a2be64993c44ad8dd06e6e26 introduced an issue impacting wlroots and Weston (possibly others) on QEMU with the virtio card. happens on QEMU, and it happens in virt-manager when I do NOT enable GL. (When GL is ENABLED it seems to be fine oddly) > > It introduces odd flickering, Weston's desktop shell flashes when a new window opens, wlroots also acts odd. > This is QEMU 8.0.4 > > I have narrowed it down to 01f05940a9a75e11a2be64993c44ad8dd06e6e26. Reverting the commit (it still reverts cleanly), and the flicking goes away on a rebuild and this is on Linux 6.6. See Bugzilla for the full thread. Anyway, I'm adding this regression to regzbot: #regzbot introduced: 01f05940a9a75e https://bugzilla.kernel.org/show_bug.cgi?id=218115 #regzbot title: fb damage clips property enablement causes Wayland non-GL flickering on QEMU Thanks. [1]: https://bugzilla.kernel.org/show_bug.cgi?id=218115 -- An old man doll... just what I always wanted! - Clara