[Nouveau] VGA resume & thaw & boot (wake up from S3 & S4 & boot from S5) broken 3.18

[poma]

http://cgit.freedesktop.org/~airlied/linux/log/?h=drm-fixes

- 3.18.0-rc1.git-e800cab-drm-fixes

[   204.950] (II) modeset(0): using drv /dev/dri/card0
[   204.951] (EE) 
[   204.951] (EE) Backtrace:
[   204.951] (EE) 0: /usr/libexec/Xorg.bin (OsSigHandler+0x29) [0x598e29]
[   204.951] (EE) 1: /lib64/libpthread.so.0 (__restore_rt+0x0) [0x7fbed6fd30cf]
[   204.952] (EE) 2: /lib64/libpciaccess.so.0 (pci_device_next+0x110) [0x7fbed9138ca0]
[   204.952] (EE) 3: /lib64/libpciaccess.so.0 (pci_device_find_by_slot+0x3b) [0x7fbed9138d3b]
[   204.952] (EE) 4: /lib64/libpciaccess.so.0 (pci_device_vgaarb_init+0xaf) [0x7fbed913a9ef]
[   204.952] (EE) 5: /usr/libexec/Xorg.bin (xf86VGAarbiterInit+0x9) [0x499039]
[   204.953] (EE) 6: /usr/libexec/Xorg.bin (xf86BusConfig+0x62) [0x46d1c2]
[   204.953] (EE) 7: /usr/libexec/Xorg.bin (InitOutput+0x9c3) [0x47b463]
[   204.953] (EE) 8: /usr/libexec/Xorg.bin (dix_main+0x1ea) [0x43caea]
[   204.953] (EE) 9: /lib64/libc.so.6 (__libc_start_main+0xf0) [0x7fbed6c25fe0]
[   204.954] (EE) 10: /usr/libexec/Xorg.bin (_start+0x29) [0x42716e]
[   204.954] (EE) 11: ? (?+0x29) [0x29]
[   204.954] (EE) 
[   204.954] (EE) Segmentation fault at address 0x0
[   204.954] (EE) 
Fatal server error:
[   204.954] (EE) Caught signal 11 (Segmentation fault). Server aborting
[   204.954] (EE) 
[   204.954] (EE) 
Please consult the Fedora Project support 
	 at http://wiki.x.org
 for help. 
[   204.954] (EE) Please also check the log file at "/var/log/Xorg.0.log" for additional information.
[   204.954] (EE) 
[   204.956] (EE) Server terminated with error (1). Closing log file.