linux-kernel - Re: HPD flood warning since b8f102e8b

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Message-ID: <alpine.LNX.2.00.1310240806370.30926@pobox.suse.cz>
Date:	Thu, 24 Oct 2013 08:08:10 +0100 (BST)
From:	Jiri Kosina <jkosina@...e.cz>
To:	Egbert Eich <eich@...e.com>
Cc:	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

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.

Thanks,

-- 
Jiri Kosina
SUSE Labs
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