linux-kernel - Re: xrandr fails after resume from hibernation in kernels 4.7.4 and 4.8.0

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Message-ID: <20161005052323.GA8915@kroah.com>
Date:   Wed, 5 Oct 2016 07:23:23 +0200
From:   Greg KH <gregkh@...uxfoundation.org>
To:     Gaston Gonzalez <gascoar@...il.com>
Cc:     linux-kernel@...r.kernel.org, stable@...r.kernel.org
Subject: Re: xrandr fails after resume from hibernation in kernels 4.7.4 and
 4.8.0

On Tue, Oct 04, 2016 at 08:43:03PM -0300, Gaston Gonzalez wrote:
> Hi,
> 
> After hibernation I get the following error when I tried to connect to monitor
> through hdmi:
> 
> $ xrandr --output LVDS1 --off  --output  HDMI1 --auto
> xrandr: Configure crtc 1 failed
> 
> This does not happen in kernel in kernel v4.6.7 but do happen in kernels v4.7.4
> and v4.8.0

Ah, can you use 'git bisect' to track down the offending patch?

Also, if you let the graphics driver authors know, they are probably the
best ones to help out with this, not the "generic" stable mailing list.

thanks,

greg k-h