Re: [Intel-gfx] xrandr fails after resume from hibernation in kernels 4.7.4 and 4.8.0

2016-10-29 Thread Gaston Gonzalez 
On Fri, Oct 28, 2016 at 07:23:24PM +0300, Ville Syrjälä wrote:
> On Fri, Oct 28, 2016 at 11:53:40AM -0400, Greg KH wrote:
> > On Fri, Oct 07, 2016 at 10:38:17AM -0300, Gaston Gonzalez wrote:
> > > 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
> > 
> > > git bisect start '--' 'drivers/gpu/drm/'
> > > # good: [096998b11906dd79df5af4d688c9974342dd09f2] Linux 4.6.7
> > > git bisect good 096998b11906dd79df5af4d688c9974342dd09f2
> > > # bad: [c8d2bc9bc39ebea8437fd974fdbc21847bb897a3] Linux 4.8
> > > git bisect bad c8d2bc9bc39ebea8437fd974fdbc21847bb897a3
> > > # good: [2dcd0af568b0cf583645c8a317dd12e344b1c72a] Linux 4.6
> > > git bisect good 2dcd0af568b0cf583645c8a317dd12e344b1c72a
> > > # bad: [3c85f20a289d044f303f473ee6ab7502303fc3b0] Merge tag 'omapdrm-4.8' 
> > > of git://git.kernel.org/pub/scm/linux/kernel/git/tomba/linux into drm-next
> > > git bisect bad 3c85f20a289d044f303f473ee6ab7502303fc3b0
> > > # bad: [a64424d722504926f3375bc4887976e3bfe3a01d] Merge branch 
> > > 'drm-next-4.7' of git://people.freedesktop.org/~agd5f/linux into drm-next
> > > git bisect bad a64424d722504926f3375bc4887976e3bfe3a01d
> > > # bad: [b5bf0f1ea3658254bd72ef64abc97786e8a32255] drm/exynos: clean up 
> > > register definions for fimd and decon
> > > git bisect bad b5bf0f1ea3658254bd72ef64abc97786e8a32255
> > > # bad: [27878ede4fec7b929c3010710ba4d55c617c621d] drm/i915: Throw out 
> > > BUGs from DPLL/PCH functions
> > > git bisect bad 27878ede4fec7b929c3010710ba4d55c617c621d
> > > # bad: [72341af4285ae1337c0dfdfa3e68318b52b8757c] drm/i915: hide away VBT 
> > > private data in a separate header
> > > git bisect bad 72341af4285ae1337c0dfdfa3e68318b52b8757c
> > > # bad: [71f0a626143368b8aead361ffaff7e36d043fd8e] drm/i915: Only use 
> > > sanitized values for ILK watermarks
> > > git bisect bad 71f0a626143368b8aead361ffaff7e36d043fd8e
> > > # bad: [66e2c4c39cc37beaccc24c9d14c75d627fce9cf4] drm/i915/gen9: Disable 
> > > DC states if power well support is disabled
> > > git bisect bad 66e2c4c39cc37beaccc24c9d14c75d627fce9cf4
> > > # bad: [4f2d9934bd6ac73950832c96b385822846670668] drm/i915: Pass 
> > > drm_frambuffer to intel_compute_page_offset()
> > > git bisect bad 4f2d9934bd6ac73950832c96b385822846670668
> > > # bad: [1d5bf5d9d9ef0c1e639d36178a224d83888c5a29] drm/i915: Add missing 
> > > NULL check before calling initial_watermarks
> > > git bisect bad 1d5bf5d9d9ef0c1e639d36178a224d83888c5a29
> > > # bad: [d9f8e52b22454a30aaaf26b7ef029598b30abf8e] drm/i915: remove dead 
> > > code
> > > git bisect bad d9f8e52b22454a30aaaf26b7ef029598b30abf8e
> > > # bad: [c3454d575da162cd310d9b83696baefb29d10a70] drm/i915: remove left 
> > > over dead code
> > > git bisect bad c3454d575da162cd310d9b83696baefb29d10a70
> > > # bad: [ed4a6a7ca853253f9b86f3005d76345482a71283] drm/i915: Add two-stage 
> > > ILK-style watermark programming (v11)
> > > git bisect bad ed4a6a7ca853253f9b86f3005d76345482a71283
> > > # first bad commit: [ed4a6a7ca853253f9b86f3005d76345482a71283] drm/i915: 
> > > Add two-stage ILK-style wa

Re: [Intel-gfx] xrandr fails after resume from hibernation in kernels 4.7.4 and 4.8.0

2016-10-07 Thread Gaston Gonzalez 
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
git bisect start '--' 'drivers/gpu/drm/'
# good: [096998b11906dd79df5af4d688c9974342dd09f2] Linux 4.6.7
git bisect good 096998b11906dd79df5af4d688c9974342dd09f2
# bad: [c8d2bc9bc39ebea8437fd974fdbc21847bb897a3] Linux 4.8
git bisect bad c8d2bc9bc39ebea8437fd974fdbc21847bb897a3
# good: [2dcd0af568b0cf583645c8a317dd12e344b1c72a] Linux 4.6
git bisect good 2dcd0af568b0cf583645c8a317dd12e344b1c72a
# bad: [3c85f20a289d044f303f473ee6ab7502303fc3b0] Merge tag 'omapdrm-4.8' of 
git://git.kernel.org/pub/scm/linux/kernel/git/tomba/linux into drm-next
git bisect bad 3c85f20a289d044f303f473ee6ab7502303fc3b0
# bad: [a64424d722504926f3375bc4887976e3bfe3a01d] Merge branch 'drm-next-4.7' 
of git://people.freedesktop.org/~agd5f/linux into drm-next
git bisect bad a64424d722504926f3375bc4887976e3bfe3a01d
# bad: [b5bf0f1ea3658254bd72ef64abc97786e8a32255] drm/exynos: clean up register 
definions for fimd and decon
git bisect bad b5bf0f1ea3658254bd72ef64abc97786e8a32255
# bad: [27878ede4fec7b929c3010710ba4d55c617c621d] drm/i915: Throw out BUGs from 
DPLL/PCH functions
git bisect bad 27878ede4fec7b929c3010710ba4d55c617c621d
# bad: [72341af4285ae1337c0dfdfa3e68318b52b8757c] drm/i915: hide away VBT 
private data in a separate header
git bisect bad 72341af4285ae1337c0dfdfa3e68318b52b8757c
# bad: [71f0a626143368b8aead361ffaff7e36d043fd8e] drm/i915: Only use sanitized 
values for ILK watermarks
git bisect bad 71f0a626143368b8aead361ffaff7e36d043fd8e
# bad: [66e2c4c39cc37beaccc24c9d14c75d627fce9cf4] drm/i915/gen9: Disable DC 
states if power well support is disabled
git bisect bad 66e2c4c39cc37beaccc24c9d14c75d627fce9cf4
# bad: [4f2d9934bd6ac73950832c96b385822846670668] drm/i915: Pass drm_frambuffer 
to intel_compute_page_offset()
git bisect bad 4f2d9934bd6ac73950832c96b385822846670668
# bad: [1d5bf5d9d9ef0c1e639d36178a224d83888c5a29] drm/i915: Add missing NULL 
check before calling initial_watermarks
git bisect bad 1d5bf5d9d9ef0c1e639d36178a224d83888c5a29
# bad: [d9f8e52b22454a30aaaf26b7ef029598b30abf8e] drm/i915: remove dead code
git bisect bad d9f8e52b22454a30aaaf26b7ef029598b30abf8e
# bad: [c3454d575da162cd310d9b83696baefb29d10a70] drm/i915: remove left over 
dead code
git bisect bad c3454d575da162cd310d9b83696baefb29d10a70
# bad: [ed4a6a7ca853253f9b86f3005d76345482a71283] drm/i915: Add two-stage 
ILK-style watermark programming (v11)
git bisect bad ed4a6a7ca853253f9b86f3005d76345482a71283
# first bad commit: [ed4a6a7ca853253f9b86f3005d76345482a71283] drm/i915: Add 
two-stage ILK-style watermark programming (v11)
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Re: [Intel-gfx] xrandr fails after resume from hibernation in kernels 4.7.4 and 4.8.0

2016-10-05 Thread Gaston Gonzalez 
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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