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Groups > linux.kernel > #1495629 > unrolled thread

xrandr fails after resume from hibernation in kernels 4.7.4 and 4.8.0

Started byGaston Gonzalez <gascoar@gmail.com>
First post2016-10-05 01:50 +0200
Last post2016-10-07 15:50 +0200
Articles 4 — 2 participants

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  xrandr fails after resume from hibernation in kernels 4.7.4 and 4.8.0 Gaston Gonzalez <gascoar@gmail.com> - 2016-10-05 01:50 +0200
    Re: xrandr fails after resume from hibernation in kernels 4.7.4 and  4.8.0 Greg KH <gregkh@linuxfoundation.org> - 2016-10-05 07:30 +0200
      Re: xrandr fails after resume from hibernation in kernels 4.7.4 and  4.8.0 Gaston Gonzalez <gascoar@gmail.com> - 2016-10-05 12:20 +0200
      Re: xrandr fails after resume from hibernation in kernels 4.7.4 and  4.8.0 Gaston Gonzalez <gascoar@gmail.com> - 2016-10-07 15:50 +0200

#1495629 — xrandr fails after resume from hibernation in kernels 4.7.4 and 4.8.0

FromGaston Gonzalez <gascoar@gmail.com>
Date2016-10-05 01:50 +0200
Subjectxrandr fails after resume from hibernation in kernels 4.7.4 and 4.8.0
Message-ID<soHDb-13k-1@gated-at.bofh.it>
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

I don't see anything related to this in the kernel log.

This happens after hibernation but not after suspend to ram.

I use a Thinkpad T430 

$ lspci | grep -i vga
00:02.0 VGA compatible controller: Intel Corporation 3rd Gen Core processor
Graphics Controller (rev 09)

regards,

Gaston

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#1495703 — Re: xrandr fails after resume from hibernation in kernels 4.7.4 and 4.8.0

FromGreg KH <gregkh@linuxfoundation.org>
Date2016-10-05 07:30 +0200
SubjectRe: xrandr fails after resume from hibernation in kernels 4.7.4 and 4.8.0
Message-ID<soMWe-4MN-11@gated-at.bofh.it>
In reply to#1495629
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

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#1495796 — Re: xrandr fails after resume from hibernation in kernels 4.7.4 and 4.8.0

FromGaston Gonzalez <gascoar@gmail.com>
Date2016-10-05 12:20 +0200
SubjectRe: xrandr fails after resume from hibernation in kernels 4.7.4 and 4.8.0
Message-ID<soRsR-7Wi-13@gated-at.bofh.it>
In reply to#1495703
On Wed, Oct 05, 2016 at 07:23:23AM +0200, Greg KH wrote:
> 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

Ok, I'll bisect this between v4.6.7 and v4.7.4

Added intel-gfx@lists.freedesktop.org in CC.

regards,

Gaston

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#1497167 — Re: xrandr fails after resume from hibernation in kernels 4.7.4 and 4.8.0

FromGaston Gonzalez <gascoar@gmail.com>
Date2016-10-07 15:50 +0200
SubjectRe: xrandr fails after resume from hibernation in kernels 4.7.4 and 4.8.0
Message-ID<spDHc-161-19@gated-at.bofh.it>
In reply to#1495703

[Multipart message — attachments visible in raw view] — view raw

On Wed, Oct 05, 2016 at 07:23:23AM +0200, Greg KH wrote:
> 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

Hello,

The culprit commit seems to be:

commit: ed4a6a7
drm/i915: Add two-stage ILK-style watermark programming

Attached the bisection log.

Let me know if additional test or bisect is needed.

Best regards,

Gaston

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