The kernel from comment #46 didn't resolves the bug. The issue remains and even the reboot-workaround don't do the trick. When I disable splash then I can enter the passphrase, but afterwards the boot hangs with the kernel-log repeatedly stating
[drm:gen8_irq_handler [i915_bpo]] *ERROR* The master control interrupt lied (SDE)!
So it's almost the same behaviour as with the 3.19.0-30 kernel.
Thanks for your work so far and if you need any further information please let me know.
The kernel from comment #46 didn't resolves the bug. The issue remains and even the reboot-workaround don't do the trick. When I disable splash then I can enter the passphrase, but afterwards the boot hangs with the kernel-log repeatedly stating
[drm:gen8_ irq_handler [i915_bpo]] *ERROR* The master control interrupt lied (SDE)!
So it's almost the same behaviour as with the 3.19.0-30 kernel.
Thanks for your work so far and if you need any further information please let me know.