[ 125.001683] [drm] The driver support for your hardware in this kernel version is alpha quality
See CONFIG_DRM_I915_ALPHA_SUPPORT or i915.alpha_support module parameter
to enable support in this kernel version, or check for kernel updates.
the system can't boot if add i915.alpha_support=1 to grub command line
test platform: DS918+_7.0.1-42218 and DS920+_7.0.1-42218
host cpu: N5095