Intel drm random freezes with Z36xxx/Z37xxx and several current 4.x kernels?

[Bruno Kant]

Hello,

Some news from my Shuttle XS35V4 (Celeron, with latest XS35V400.400 
BIOS) and its graphic card. But first of all, thanks to the people who 
made those codes available:

http://cgit.freedesktop.org/drm-intel
https://cgit.freedesktop.org/xorg/driver/xf86-video-intel

I am still using Fedora 23 Workstation (with the daily update).

I updated xf86-video-intel to the latest 2.99.917-544(-g8b8c9a3?) 
version. Then I booted using the freedesktop.org/drm-intel kernel which 
included the i915 1.6.0 20160124 graphic driver. My Shuttle graphic card 
is:

# lspci -nnk | egrep -iA3 "VGA"
00:02.0 VGA compatible controller [0300]: Intel Corporation Atom 
Processor Z36xxx/Z37xxx Series Graphics & Display [8086:0f31] (rev 0e)
         DeviceName:  Onboard IGD
         Subsystem: Holco Enterprise Co, Ltd/Shuttle Computer Device 
[1297:4019]
         Kernel driver in use: i915

With the freedesktop.org/drm-intel kernel (currently a patched 
4.5.0-rc2), my Linux ran for 14 hours whithout any crash. I stressed the 
box using two screens and three video streams.

Then I used the freedesktop.org/drm-intel content to patch a standard 
4.5.0-rc2 downloaded from kernel.org. My Shuttle is now up and running 
4.5.0-rc2 with the latest i915 1.6.0 20160124 kernel module and 
xf86-video-intel version 2.99.917-544. I think it should be much more 
stable now.

Best regards