[Bug 67878] [NV98] [BISECTED] Hardware freeze after resume from suspend

[bugzilla-daemon-CC+yJ3UmIYqDUpFQwHEjaQ@public.gmane.org]

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https://bugs.freedesktop.org/show_bug.cgi?id=67878

--- Comment #40 from Jochen <jf-Jn17RpidJxba5EbDDlwbIw@public.gmane.org> ---
I hit this bug upon upgrade from Ubuntu 12.04 to 14.04. I can confirm nouveau
is working in Ubuntu kernel 3.7.10 and it freezes on resume in 3.13.0.
My hardware:

02:00.0 VGA compatible controller: NVIDIA Corporation C79 [GeForce 9400M] (rev
b1) (prog-if 00 [VGA controller])
    Subsystem: Apple Inc. MacBook5,1
    Flags: bus master, fast devsel, latency 0, IRQ 16
    Memory at d2000000 (32-bit, non-prefetchable) [size=16M]
    Memory at c0000000 (64-bit, prefetchable) [size=256M]
    Memory at d0000000 (64-bit, prefetchable) [size=32M]
    I/O ports at 1000 [size=128]
    Expansion ROM at d3000000 [disabled] [size=128K]
    Capabilities: [60] Power Management version 2
    Capabilities: [68] MSI: Enable- Count=1/1 Maskable- 64bit+
    Kernel driver in use: nouveau

[    3.918406] nouveau 0000:02:00.0: setting latency timer to 64
[    3.919370] nouveau  [  DEVICE][0000:02:00.0] BOOT0  : 0x0ac180b1
[    3.919374] nouveau  [  DEVICE][0000:02:00.0] Chipset: MCP79/MCP7A (NVAC)
[    3.919376] nouveau  [  DEVICE][0000:02:00.0] Family : NV50
[    3.930101] nouveau  [   VBIOS][0000:02:00.0] checking PRAMIN for image...
[    3.995688] nouveau  [   VBIOS][0000:02:00.0] ... appears to be valid
[    3.995692] nouveau  [   VBIOS][0000:02:00.0] using image from PRAMIN
[    3.995827] nouveau  [   VBIOS][0000:02:00.0] BIT signature found
[    3.995831] nouveau  [   VBIOS][0000:02:00.0] version 62.79.40.00
[    4.069047] nouveau  [     MXM][0000:02:00.0] no VBIOS data, nothing to do
[    4.147303] nouveau  [     PFB][0000:02:00.0] RAM type: stolen system memory
[    4.147309] nouveau  [     PFB][0000:02:00.0] RAM size: 256 MiB
[    4.938049] nouveau  [     DRM] VRAM: 256 MiB
[    4.938053] nouveau  [     DRM] GART: 512 MiB
[    4.938057] nouveau  [     DRM] BIT BIOS found
[    4.938061] nouveau  [     DRM] Bios version 62.79.40.00
[    4.938065] nouveau  [     DRM] TMDS table version 2.0
[    4.938068] nouveau  [     DRM] DCB version 4.0
[    4.938071] nouveau  [     DRM] DCB outp 00: 01000123 00010014
[    4.938073] nouveau  [     DRM] DCB outp 01: 02021232 00000010
[    4.938076] nouveau  [     DRM] DCB outp 02: 02021286 0f220010
[    4.938078] nouveau  [     DRM] DCB conn 00: 00000040
[    4.938081] nouveau  [     DRM] DCB conn 01: 0000a146
[    6.473715] nouveau  [     DRM] 4 available performance level(s)
[    6.473720] nouveau  [     DRM] 0: core 100MHz shader 200MHz voltage 900mV
fanspeed 100%
[    6.473724] nouveau  [     DRM] 1: core 150MHz shader 300MHz voltage 900mV
fanspeed 100%
[    6.473728] nouveau  [     DRM] 2: core 350MHz shader 800MHz voltage 900mV
fanspeed 100%
[    6.473731] nouveau  [     DRM] 3: core 450MHz shader 1100MHz voltage 1010mV
fanspeed 100%
[    6.473734] nouveau  [     DRM] c:
[    6.498971] nouveau  [     DRM] MM: using M2MF for buffer copies
[    6.593834] nouveau  [     DRM] allocated 1280x800 fb: 0x50000, bo
ffff88013692ac00
[    6.593930] fbcon: nouveaufb (fb0) is primary device
[    6.862546] fb0: nouveaufb frame buffer device
[    6.863165] [drm] Initialized nouveau 1.1.0 20120801 for 0000:02:00.0 on
minor 0

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