Created attachment 115184 [details]
dmesg (kernel_log.txt)

I got the same problem than the one described in the bug 89186.
(https://bugs.freedesktop.org/show_bug.cgi?id=89186)

A black and white mosaic displayed on my screen after resuling from suspend.

I also tried a 3.19 kernel without success.


I first reported to Debian (the distro I use).
See https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=781337


The maintainers told me it is mainly a kernel problem.

They also asked to report it upstream to help.