From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([2001:4830:134:3::10]:48590) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1fdpZS-0000CV-Ts for qemu-devel@nongnu.org; Fri, 13 Jul 2018 00:20:44 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1fdpZP-0003mt-O5 for qemu-devel@nongnu.org; Fri, 13 Jul 2018 00:20:42 -0400 Received: from indium.canonical.com ([91.189.90.7]:47784) by eggs.gnu.org with esmtps (TLS1.0:RSA_AES_128_CBC_SHA1:16) (Exim 4.71) (envelope-from ) id 1fdpZP-0003mV-Ha for qemu-devel@nongnu.org; Fri, 13 Jul 2018 00:20:39 -0400 Received: from loganberry.canonical.com ([91.189.90.37]) by indium.canonical.com with esmtp (Exim 4.86_2 #2 (Debian)) id 1fdpZO-0007Es-CW for ; Fri, 13 Jul 2018 04:20:38 +0000 Received: from loganberry.canonical.com (localhost [127.0.0.1]) by loganberry.canonical.com (Postfix) with ESMTP id 5A01F2E8076 for ; Fri, 13 Jul 2018 04:20:38 +0000 (UTC) MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable Date: Fri, 13 Jul 2018 04:06:43 -0000 From: =?utf-8?q?Francisco_de_la_Pe=C3=B1a?= Reply-To: Bug 1781515 <1781515@bugs.launchpad.net> Sender: bounces@canonical.com References: <153144791597.24345.4188684272748961598.malonedeb@chaenomeles.canonical.com> Message-Id: <153145480325.4037.3734767939067856049.malone@gac.canonical.com> Errors-To: bounces@canonical.com Subject: [Qemu-devel] [Bug 1781515] Re: Resolution switch leads to the screen/image being corrupted List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: qemu-devel@nongnu.org Hi Diego, It seems this is a known limitation[1] because horizontal width is not a multiple of 8, try 1360x768 as the nearest resolution, which works for me on guests not supporting QXL drivers. Regards. [1] Proposed patch from 2013: https://lists.gnu.org/archive/html/qemu- devel/2013-03/msg02732.html -- = You received this bug notification because you are a member of qemu- devel-ml, which is subscribed to QEMU. https://bugs.launchpad.net/bugs/1781515 Title: Resolution switch leads to the screen/image being corrupted Status in QEMU: New Bug description: I am currently using QEMU on a Arch Linux host, the guest OS is also Arch Linux. The QEMU version is currently 2.12.0-2 packaged by Arch Linux, the command line I'm using to fire an Arch VM is: $ qemu-system-x86_64 -enable-kvm -hda archlinux.qcow2 -m 4G -smp 4 The problem I'm currently having is, after firing the VM and running startx I want to change the resolution to the native resolution, which is 1366x768 on my ThinkPad T450, however, after changing the resolution the image on the guest gets corrupted and it's impossible to see anything. At this point I can only turn off the VM. The only workaround I found is to start the VM with -vga virtio. The problem in this case occurs with -vga std which is the default video driver. To manage notifications about this bug go to: https://bugs.launchpad.net/qemu/+bug/1781515/+subscriptions