From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751309Ab1AWMzc (ORCPT ); Sun, 23 Jan 2011 07:55:32 -0500 Received: from mail-ww0-f44.google.com ([74.125.82.44]:51629 "EHLO mail-ww0-f44.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750895Ab1AWMzb (ORCPT ); Sun, 23 Jan 2011 07:55:31 -0500 DomainKey-Signature: a=rsa-sha1; c=nofws; d=googlemail.com; s=gamma; h=from:reply-to:to:subject:date:user-agent:cc:references:in-reply-to :mime-version:content-type:content-transfer-encoding :content-disposition:message-id; b=Y0QOj5mQ7YB9ewHAWgpGRqi8My7FZugYhT0WJYUVMvW1FdgAymDxLnDuZqtHV0zU3O 7W/1RHORwVjRzx7SpNVv+GuZp9OrSfv8fah9Fyc44T0cgP0d7j6hFTcANvN7mgne9Zu+ zcTbmMtxuS4WB3qaxERq2GfimZKj4MBOglM2g= From: Chris Clayton Reply-To: chris2553@googlemail.com To: Chris Wilson Subject: Re: [PATCH] drm/i915: Disable high-precision vblank timestamping for UMS Date: Sun, 23 Jan 2011 12:55:13 +0000 User-Agent: KMail/1.9.10 Cc: linux-kernel@vger.kernel.org, dri-devel@lists.freedesktop.org References: <201101230932.49998.chris2553@googlemail.com> <201101231128.22951.chris2553@googlemail.com> In-Reply-To: MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit Content-Disposition: inline Message-Id: <201101231255.13967.chris2553@googlemail.com> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Sunday 23 January 2011, Chris Wilson wrote: > On Sun, 23 Jan 2011 11:28:22 +0000, Chris Clayton wrote: > > Hi Chris, > > > > On Sunday 23 January 2011, Chris Wilson wrote: > > > We only have sufficient information for accurate (sub-frame) > > > timestamping when the modesetting is under our control. > > > > With this patch (and the earlier one) applied, X still doesn't start. At > > the end of xorg's log file I see: > > > > Fatal server error: > > Failure to wait for IRQ: No such device > > Now we are getting closer! The X server has been caught red-handed trying > to use an interrupt when the driver never enabled them. Ho hum. > > The interrupts for UMS are only enabled between EnterVT/LeaveVT, but that > code looks defunct. What version of xf86-video-intel are you using? It's 2.7.1, which, IIRC, is the latest version that will build against all the other xorg libraries that are on my system. I'll do a quick check after lunch to see if any later versions will build without me going through dependency hell. Thanks for your help so far, Chris > -Chris -- The more I see, the more I know. The more I know, the less I understand. Changing Man - Paul Weller