早上开ubuntu虚拟机的时候发现开机界面可以显示，但进去后就黑屏了。
我感觉是图形界面的问题，于是尝试ssh连接，连上了，查看内核情况：
#dmesg[ 6.065797] cryptd: max_cpu_qlen set to 1000[ 6.094021] NET: Registered protocol family 40[ 6.148656] AVX2 version of gcm_enc/dec engaged.[ 6.148657] AES CTR mode by8 optimization enabled[ 22.790820] [drm:vmw_cotable_resize [vmwgfx]] *ERROR* Failed waiting for cotable unbind.[ 22.790845] [drm:vmw_resource_validate [vmwgfx]] *ERROR* Out of device device resources for context guest backed object tables.[ 22.790850] [drm:vmw_validation_res_validate [vmwgfx]] *ERROR* Failed to validate resource.[ 33.026133] [drm:drm_atomic_helper_wait_for_dependencies [drm_kms_helper]] *ERROR* [CRTC:37:crtc-0] flip_done timed out[ 43.267720] [drm:drm_atomic_helper_wait_for_dependencies [drm_kms_helper]] *ERROR* [PLANE:33:plane-0] flip_done timed out[ 53.508250] [drm:drm_atomic_helper_wait_for_dependencies [drm_kms_helper]] *ERROR* [CRTC:37:crtc-0] flip_done timed out[ 63.748037] [drm:drm_atomic_helper_wait_for_dependencies [drm_kms_helper]] *ERROR* [PLANE:33:plane-0] flip_done timed out[ 78.848761] [drm:vmw_cotable_resize [vmwgfx]] *ERROR* Failed waiting for cotable unbind.[ 78.848785] [drm:vmw_resource_validate [vmwgfx]] *ERROR* Out of device device resources for context guest backed object tables.[ 78.848792] [drm:vmw_validation_res_validate [vmwgfx]] *ERROR* Failed to validate resource.[ 89.088949] [drm:drm_atomic_helper_wait_for_dependencies [drm_kms_helper]] *ERROR* [CRTC:37:crtc-0] flip_done timed out[ 99.329846] [drm:drm_atomic_helper_wait_for_dependencies [drm_kms_helper]] *ERROR* [CONNECTOR:35:Virtual-1] flip_done timed out[ 109.569247] [drm:drm_atomic_helper_wait_for_dependencies [drm_kms_helper]] *ERROR* [PLANE:33:plane-0] flip_done timed out[ 119.809712] [drm:drm_atomic_helper_wait_for_dependencies [drm_kms_helper]] *ERROR* [CRTC:37:crtc-0] flip_done timed out[ 130.051274] [drm:drm_atomic_helper_wait_for_dependencies [drm_kms_helper]] *ERROR* [PLANE:33:plane-0] flip_done timed out
我去搜索解决方法，网上找不到任何有用的信息。
我想到把CPU的核数降到2个，不用4个，就成功启动了。。。。。。。。
可能是vmware的问题吧。
