Gnome freeze with Intel Skylake GPU

Itel skylake GPU can be identified as Intel HD 530.

the freeze happens with 2.11 and 3.0~beta, the troubleshooting mode works but the resolution is really low. users experiencing this issue should test a 2.12 nightly experimental ISO (the kernel is upgraded to 4.9) :

https://nightly.tails.boum.org/build_Tails_ISO_devel/lastStable/archive/build-artifacts/

Related issues

Related to #15821 (closed)

Original created by @goupille on 12334 (Redmine)

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