From mboxrd@z Thu Jan 1 00:00:00 1970 From: Federico Beffa Subject: Re: poor scrolling in qemu-kvm Date: Sat, 29 Nov 2014 18:54:05 +0100 Message-ID: References: Mime-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Return-path: Received: from eggs.gnu.org ([2001:4830:134:3::10]:53864) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1XumDf-0008B0-Bz for guix-devel@gnu.org; Sat, 29 Nov 2014 12:54:08 -0500 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1XumDe-0003Wm-CZ for guix-devel@gnu.org; Sat, 29 Nov 2014 12:54:07 -0500 Received: from mail-lb0-x22c.google.com ([2a00:1450:4010:c04::22c]:38664) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1XumDe-0003WS-3L for guix-devel@gnu.org; Sat, 29 Nov 2014 12:54:06 -0500 Received: by mail-lb0-f172.google.com with SMTP id u10so6883264lbd.17 for ; Sat, 29 Nov 2014 09:54:05 -0800 (PST) In-Reply-To: List-Id: "Development of GNU Guix and the GNU System distribution." List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: guix-devel-bounces+gcggd-guix-devel=m.gmane.org@gnu.org Sender: guix-devel-bounces+gcggd-guix-devel=m.gmane.org@gnu.org To: Guix-devel On Sat, Nov 29, 2014 at 5:23 PM, Federico Beffa wrote: > Hi, > > I'm experimenting with the system in a qemu-kvm virtual machine. I > created an image and successfully booted. However, scrolling of the > display is unusably slow (e.g. displaying dmesg). The same problem is > also visible in Ludovic's presentation > > http://audio-video.gnu.org/video/ghm2014/2014-08--courtes--were-building-the-gnu-system--ghm.webm > > at about min. 41. > > For comparison I run an ubuntu live cd (in text mode) and it performs very well. > > Have someone found out the reason for this poor performance in > qemu-kvm and how to fix it? > Interestingly, under X the system performs pretty well. So, its a text mode problem. Fede