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From: Chris Wilson <chris@chris-wilson.co.uk>
To: chris2553@googlemail.com
Cc: linux-kernel@vger.kernel.org, dri-devel@lists.freedesktop.org
Subject: Re: [PATCH] drm/i915: Disable high-precision vblank timestamping for UMS
Date: Sun, 23 Jan 2011 12:44:10 +0000	[thread overview]
Message-ID: <b7da2f$q7be7q@fmsmga001.fm.intel.com> (raw)
In-Reply-To: <201101231128.22951.chris2553@googlemail.com>

On Sun, 23 Jan 2011 11:28:22 +0000, Chris Clayton <chris2553@googlemail.com> 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?
-Chris

-- 
Chris Wilson, Intel Open Source Technology Centre

  reply	other threads:[~2011-01-23 12:44 UTC|newest]

Thread overview: 15+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [not found] <:201101220935.03623.chris2553@googlemail.com>
2011-01-22 10:11 ` [PATCH] drm/i915: Increase the amount of defense before computing vblank timestamps Chris Wilson
2011-01-22 11:18   ` Chris Clayton
2011-01-22 18:01     ` Chris Wilson
2011-01-23  8:56       ` Chris Clayton
2011-01-23  9:32         ` Chris Clayton
2011-01-23 10:50           ` [PATCH] drm/i915: Disable high-precision vblank timestamping for UMS Chris Wilson
2011-01-23 11:28             ` Chris Clayton
2011-01-23 12:44               ` Chris Wilson [this message]
2011-01-23 12:55                 ` Chris Clayton
2011-01-23 13:06               ` [PATCH] drm/i915: Handle the no-interrupts case for UMS by polling Chris Wilson
2011-01-23 15:38                 ` Chris Clayton
2011-01-23 15:59                   ` Chris Wilson
2011-02-10 19:58                     ` Chris Clayton
2011-02-10 20:37                       ` Chris Wilson
2011-01-23 10:52           ` [PATCH] drm/i915: Increase the amount of defense before computing vblank timestamps Chris Wilson

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