Bug 76531

Summary: linux-3.14-rc7 radeon/nouveau runtime-suspend never coming back
Product: DRI Reporter: Bruno <bonbons>
Component: DRM/otherAssignee: Default DRI bug account <dri-devel>
Status: RESOLVED FIXED QA Contact:
Severity: normal    
Priority: medium CC: mail
Version: XOrg git   
Hardware: Other   
OS: Linux (All)   
Whiteboard:
i915 platform: i915 features:
Attachments:
Description Flags
Kernel log, nouveau_pmops_runtime_suspend() returning -EINVAL
none
Kernel log, nouveau_pmops_runtime_suspend() returning -EBUSY none

Description Bruno 2014-03-23 23:03:29 UTC 
Most recent testing: 3.14-rc7 mainline.

As suggested on IRC by imirkin, returning -EBUSY instead of -EINVAL from nouveau_pmops_runtime_suspend() avoids driver to fall too far to the ground.

When returning -EINVAL connectors get being seen as "disconnected" and there is no way to get them connected anymore.

When returning -EBUSY the connectors stay functional but DE (enlightenment) complains about missing crtc and all that is visible is black background and a cursor that response to mouse/trackpad.

Way to reproduce:
Have xorg running, then for each avtive output call:
xrandr --output $OUTPUT --off

When last output got marked off runtime-suspend kicks in.


Same/similar behavior has been observed on radeon (I don't remember the exact kernel releases, but older ones got console to display when switching VTs while newer failed to do so).
Comment 1 Bruno 2014-03-23 23:11:14 UTC 
Created attachment 96260 [details]
Kernel log, nouveau_pmops_runtime_suspend() returning -EINVAL

Kernel log for nouveau_pmops_runtime_suspend() returning -EINVAL
Comment 2 Bruno 2014-03-23 23:15:12 UTC 
Created attachment 96263 [details]
Kernel log, nouveau_pmops_runtime_suspend() returning -EBUSY

Kernel log, nouveau_pmops_runtime_suspend() returning -EBUSY


What enlightenment complains about on stderr:
E_RANDR Event: Screen Change: 320 200
E_RANDR Event: Output Change
        Output: 97
                No Crtc
                Mode: 0
                Output Connected
        Looping Our Crtc Configs
                Looping Our Output Configs on this Crtc: 95
                        Found Output 97 on Crtc: 95
                                Output Has No Crtc Assigned
E_RANDR Event: Output Change
        Output: 98
                No Crtc
                Mode: 0
                Output Disconnected
        Looping Our Crtc Configs
                Looping Our Output Configs on this Crtc: 95
                Looping Our Output Configs on this Crtc: 96



xrandr --verbose:
Screen 0: minimum 320 x 200, current 1280 x 800, maximum 8192 x 8192
LVDS-1 connected primary 1280x800+0+0 (0x64) normal (normal left inverted right x axis y axis) 286mm x 179mm
        Identifier: 0x61
        Timestamp:  385919
        Subpixel:   unknown
        Gamma:      1.0:1.0:1.0
        Brightness: 1.0
        Clones:
        CRTC:       0
        CRTCs:      0
        Transform:  1.000000 0.000000 0.000000
                    0.000000 1.000000 0.000000
                    0.000000 0.000000 1.000000
                   filter:
        EDID:
                00ffffffffffff000610909c01010101
                10110103801d12780a90b59958528e26
                1e505400000001010101010101010101
                010101010101521c008f50202e303020
                36001eb3100000180000000100061020
                00000000000000000a20000000fe0042
                313333455730332056320a20000000fe
                00436f6c6f72204c43440a20202000af
        dithering depth: auto
                supported: auto, 6 bpc, 8 bpc
        dithering mode: auto
                supported: auto, off, static 2x2, dynamic 2x2
        scaling mode: Full
                supported: None, Full, Center, Full aspect
        color vibrance: 150
                range: (0, 200)
        vibrant hue: 90
                range: (0, 180)
  1280x800 (0x64)   72.5MHz -HSync -VSync *current +preferred
        h: width  1280 start 1328 end 1360 total 1423 skew    0 clock   50.9KHz
        v: height  800 start  803 end  809 total  846           clock   60.2Hz
  1024x768 (0x65)   63.5MHz -HSync +VSync
        h: width  1024 start 1072 end 1176 total 1328 skew    0 clock   47.8KHz
        v: height  768 start  771 end  775 total  798           clock   59.9Hz
  800x600 (0x66)   38.2MHz -HSync +VSync
        h: width   800 start  832 end  912 total 1024 skew    0 clock   37.4KHz
        v: height  600 start  603 end  607 total  624           clock   59.9Hz
  640x480 (0x67)   23.8MHz -HSync +VSync
        h: width   640 start  664 end  720 total  800 skew    0 clock   29.7KHz
        v: height  480 start  483 end  487 total  500           clock   59.4Hz
  720x400 (0x68)   22.2MHz -HSync +VSync
        h: width   720 start  744 end  808 total  896 skew    0 clock   24.8KHz
        v: height  400 start  403 end  413 total  417           clock   59.6Hz
  640x400 (0x69)   20.0MHz -HSync +VSync
        h: width   640 start  664 end  720 total  800 skew    0 clock   25.0KHz
        v: height  400 start  403 end  409 total  417           clock   60.0Hz
  640x350 (0x6a)   17.5MHz -HSync +VSync
        h: width   640 start  664 end  720 total  800 skew    0 clock   21.9KHz
        v: height  350 start  353 end  363 total  366           clock   59.8Hz
DP-1 disconnected (normal left inverted right x axis y axis)
        Identifier: 0x62
        Timestamp:  385919
        Subpixel:   unknown
        Clones:
        CRTCs:      1
        Transform:  1.000000 0.000000 0.000000
                    0.000000 1.000000 0.000000
                    0.000000 0.000000 1.000000
                   filter:
        dithering depth: auto
                supported: auto, 6 bpc, 8 bpc
        dithering mode: auto
                supported: auto, off, static 2x2, dynamic 2x2
        scaling mode: Full
                supported: None, Full, Center, Full aspect
        color vibrance: 150
                range: (0, 200)
        vibrant hue: 90
                range: (0, 180)
        underscan vborder: 0
                range: (0, 128)
        underscan hborder: 0
                range: (0, 128)
        underscan: off
                supported: auto, off, on


Nothing useful in Xorg log:
[   105.060] (II) NOUVEAU(0): EDID vendor "APP", prod id 40080
[   105.060] (II) NOUVEAU(0): Printing DDC gathered Modelines:
[   105.060] (II) NOUVEAU(0): Modeline "1280x800"x0.0   72.50  1280 1328 1360 1423  800 803 809 846 -hsync -vsync (50.9 kHz eP)
[   116.307] (II) NOUVEAU(0): EDID vendor "APP", prod id 40080
[   116.307] (II) NOUVEAU(0): Printing DDC gathered Modelines:
[   116.307] (II) NOUVEAU(0): Modeline "1280x800"x0.0   72.50  1280 1328 1360 1423  800 803 809 846 -hsync -vsync (50.9 kHz eP)
[   116.620] resize called 1280 800

disabling all output happens around here

[   215.441] resize called 320 200
[   234.084] (II) NOUVEAU(0): EDID vendor "APP", prod id 40080
[   234.084] (II) NOUVEAU(0): Printing DDC gathered Modelines:
[   234.084] (II) NOUVEAU(0): Modeline "1280x800"x0.0   72.50  1280 1328 1360 1423  800 803 809 846 -hsync -vsync (50.9 kHz eP)
[   245.175] (II) NOUVEAU(0): EDID vendor "APP", prod id 40080
[   245.175] (II) NOUVEAU(0): Printing DDC gathered Modelines:
[   245.175] (II) NOUVEAU(0): Modeline "1280x800"x0.0   72.50  1280 1328 1360 1423  800 803 809 846 -hsync -vsync (50.9 kHz eP)
[   245.490] resize called 1280 800
[   254.065] (II) NOUVEAU(0): EDID vendor "APP", prod id 40080
[   254.065] (II) NOUVEAU(0): Printing DDC gathered Modelines:
[   254.065] (II) NOUVEAU(0): Modeline "1280x800"x0.0   72.50  1280 1328 1360 1423  800 803 809 846 -hsync -vsync (50.9 kHz eP)
Comment 3 Emil Velikov 2014-06-08 14:55:00 UTC 
The both issues should be resolved with adbbdbac04f093c0abf946b1e93e4e5291808491 and 1d8eec8ba4a38fcee9d30e4fb5b3d67a9bff9db3 respectively. Landing with 3.14-rc8.

Give the stable 3.14 a try and feel free to reopen if it's still an issue.
Comment 4 Emil Velikov 2014-06-08 15:07:21 UTC 
*** Bug 79795 has been marked as a duplicate of this bug. ***

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