Unbootable after update

[tes]

I’m running unstable and since the recent Mesa 17.0 and Xorg-* package updates, I can’t boot.
Xorg log
Pacman log

[Cubanpit]

[    28.171] (EE) NVIDIA:     system's kernel log for additional error messages and
[    28.171] (EE) NVIDIA:     consult the NVIDIA README for details.
[    28.271] (EE) NVIDIA: Failed to initialize the NVIDIA kernel module. Please see the
[    28.271] (EE) NVIDIA:     system's kernel log for additional error messages and
[    28.271] (EE) NVIDIA:     consult the NVIDIA README for details.
[    28.271] (EE) No devices detected.
[    28.271] (EE)
Fatal server error:
[    28.271] (EE) no screens found(EE)```

You can check journal log, looking for kernel error messages.
Do you have also an integrated graphic card? You can use this to boot your graphic environment.

[eugen-b]

What’s in the file in /etc/X11/mhwd.d/*.conf ?
Also, a search gave this among other results:
https://bbs.archlinux.org/viewtopic.php?id=220746

[tes]

journalctl gives me two errors:
Kernel: nouveau 0000:01:00.0: DRM: EVO timeout
Kernel: nouveau 0000:01:00.0: DRM: base-0: timeout

In the mhwd.d folder there is two configs:
nvidia.conf.nvidia-xconfig-original which is empty and nvidia.conf

edit: after trying the mkinitcpio thing, the system will still not boot.
edit2: don’t know why nouveau is giving me grief, when I’m using the closed source driver.

[tes]

Downgraded packages to testing, and everything works fine now. This can be closed

[eugen-b]

Let’s hope it gets fixed upstream before it would arrive at stable branch. Until that @philm maybe shouldn’t push it to stable.