From mboxrd@z Thu Jan 1 00:00:00 1970 From: Paul Furness Subject: Direct rendering causing lock ups? Date: 16 Oct 2002 13:27:46 +0100 Sender: linux-admin-owner@vger.kernel.org Message-ID: <1034771266.4440.9.camel@zebra.vil.ite.mee.com> Mime-Version: 1.0 Content-Transfer-Encoding: 7bit Return-path: List-Id: Content-Type: text/plain; charset="us-ascii" To: linux-admin@vger.kernel.org Hi. I just (for various reasons) re-built my workstation from scratch, using Red Hat 7.3 and then applying updates. After getting it all working nicely, I noticed that when I switch from X to a text terminal (ctrl-alt-F1) and then back to X, the whole box hangs. It won't allow telnet or ssh and I can't kill the X server (ctrl-alt-BS) so the only fix is the 'Big Red Switch' solution. After some messing around, and chatting to a friend who also found this problem, we have come to the conclusion that it is related to DRI mode Radeon configuration; if we turn on DRI, X is much faster but crashes the box when switching VT. If we turn off DRI, no crash. My questions: 1) Has anyone else seen this behavior? Is it restricted just to ATI Radeon cards? 2) Does anyone know how to _stop_ this behavior? I'd really like to keep DRI because of the speed, but I'd also really like to have a system that lets me do what it's supposed to! Any thoughts, anyone? Paul. -- Paul Furness Systems Manager 2+2=5 for extremely large values of 2.