linux-kernel - Re: HPD flood warning since b8f102e8b

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Date:	Thu, 24 Oct 2013 15:41:24 +0200
From:	Egbert Eich <eich@...e.com>
To:	Jiri Kosina <jkosina@...e.cz>
Cc:	Egbert Eich <eich@...e.com>,
	Daniel Vetter <daniel.vetter@...ll.ch>,
	Egbert Eich <eich@...e.de>,
	Jani Nikula <jani.nikula@...el.com>,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
	dri-devel <dri-devel@...ts.freedesktop.org>,
	intel-gfx <intel-gfx@...ts.freedesktop.org>
Subject: Re: HPD flood warning since b8f102e8b

Jiri Kosina writes:
 > On Mon, 21 Oct 2013, Egbert Eich wrote:
 > 
 > >  > On Thu, 3 Oct 2013, Daniel Vetter wrote:
 > >  > 
 > >  > > Can you please attach full dmesg from boot up to the first WARN with
 > >  > > drm.debug=0xe? This really shouldn't happen and indicates a bug
 > >  > > somewhere ...
 > >  > 
 > >  > A bit difficult ... I originally thought that it was reliably 
 > >  > reproducible, but now I didn't get it after 10 suspend/resume cycles. Will 
 > >  > keep following it, and once it appears, will send you the dmesg.
 > >  > 
 > > Could you check if you get any messages regarding HPD storms after 
 > > suspend/resume ie messages like:
 > > "[drm] HPD interrupt storm detected on connector HDMI-A-1"
 > > but without the annouing warn messages?
 > 
 > I have this:
 > 
 > [357128.184113] [drm] HPD interrupt storm detected on connector DP-3: switching from hotplug detection to polling
 > 
 > It appeared in the log approximately 5 seconds after resume has been 
 > completed.
 > 

:( You seem to get this on different connector.

Any chance for a 'lspci -n' output?

Cheers,
	Egbert.
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