pycuda._driver.LogicError: cuInit failed: system has unsupported display driver / cuda driver combination

## error
After using the docker image of NVIDIA to create a container, installing **pycuda** in the container encountered the following error:

```shell
$ python
Python 3.6.12 |Anaconda, Inc.| (default, Sep 8 2020, 23:10:56)
[GCC 7.3.0] on linux
Type "help", "copyright", "credits" or "license" for more information.
>>> import pycuda.autoinit
Traceback (most recent call last):
File "", line 1, in
File "/root/anaconda3/envs/trt/lib/python3.6/site-packages/pycuda/autoinit.py", line 5, in
cuda.init()
pycuda._driver.LogicError: cuInit failed: system has unsupported display driver / cuda driver combination

```

## environment
**ubuntu18.04**：cuda10.2、cudnn7.6.5
**docker container**：cuda10.2、cudnn7.6.5

## issue
@inducer Does pycuda not support using in containers?