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 X-Spam-Level: X-Spam-Status: No, score=-1.0 required=3.0 tests=MAILING_LIST_MULTI, SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED autolearn=no autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id B9B65C35280 for ; Fri, 8 May 2020 01:10:03 +0000 (UTC) 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 mail.kernel.org (Postfix) with ESMTPS id 8D592207DD for ; Fri, 8 May 2020 01:10:03 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 8D592207DD Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=bugzilla.kernel.org Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=dri-devel-bounces@lists.freedesktop.org Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id C127F6E120; Fri, 8 May 2020 01:10:02 +0000 (UTC) Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by gabe.freedesktop.org (Postfix) with ESMTPS id 64A1A6E120 for ; Fri, 8 May 2020 01:10:01 +0000 (UTC) From: bugzilla-daemon@bugzilla.kernel.org To: dri-devel@lists.freedesktop.org Subject: [Bug 207619] New: Screen corrupt in Wayland and kmscube, like wrong stride / pitch, on Radeon X1400 RV515 Date: Fri, 08 May 2020 01:10:00 +0000 X-Bugzilla-Reason: None X-Bugzilla-Type: new 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: boris.gjenero@gmail.com X-Bugzilla-Status: NEW X-Bugzilla-Resolution: X-Bugzilla-Priority: P1 X-Bugzilla-Assigned-To: drivers_video-dri@kernel-bugs.osdl.org X-Bugzilla-Flags: X-Bugzilla-Changed-Fields: bug_id short_desc product version cf_kernel_version rep_platform op_sys cf_tree bug_status bug_severity priority component assigned_to reporter cf_regression Message-ID: 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: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" https://bugzilla.kernel.org/show_bug.cgi?id=207619 Bug ID: 207619 Summary: Screen corrupt in Wayland and kmscube, like wrong stride / pitch, on Radeon X1400 RV515 Product: Drivers Version: 2.5 Kernel Version: 5.7-rc4 Hardware: x86-64 OS: Linux Tree: Mainline Status: NEW Severity: normal Priority: P1 Component: Video(DRI - non Intel) Assignee: drivers_video-dri@kernel-bugs.osdl.org Reporter: boris.gjenero@gmail.com Regression: No I have a Dell Inspiron 6400 laptop with ATI / AMD Mobility Radeon X1400 graphics (RV515/M54) and a 1680x1050 LCD panel. If run GNOME shell with Wayland, Sway, Weston or kmscube, the screen is corrupt as if the pitch / stride is wrong. In other words, the picture is as if drawing assumes one number of bytes per line, and the GPU uses a different number of bytes per line when outputting to the screen. As a result, the image is slanted and wrapped. It's like a CRT with incorrect horizontal hold, except it's an LCD and the image is always slanted the same way. In GNOME the mouse cursor is perfectly fine. I assume GNOME uses the hardware mouse cursor, which is not affected by this problem. This also shows that the issue is in with how data is represented in memory, and not a lack of horizontal hold between the GPU and LCD. The fact the exact same kind of corruption happens in 4 different applications seems to imply this is a kernel bug. I'm observing this in Ubuntu 20.04 x86-64, both with its 5.4.0-29-generic kernel and their 5.7.0-050700rc4-generic_5.7.0-050700rc4.202005051752 from upstream. I do not have this problem in Xorg. -- You are receiving this mail because: You are watching the assignee of the bug. _______________________________________________ dri-devel mailing list dri-devel@lists.freedesktop.org https://lists.freedesktop.org/mailman/listinfo/dri-devel