我在远程计算机上运行python scraper（用于网页和PDF）。我登录到远程机器以奇数间隔检入，代码通常会断开以下内容：
Traceback (most recent call last):
File "<stdin>", line 148, in <module>
File "/usr/local/lib/python2.7/dist packages/selenium/webdriver/chrome/webdriver.py", line 75, in __init__
desired_capabilities=desired_capabilities)
File "/usr/local/lib/python2.7/dist-packages/selenium/webdriver/remote/webdriver.py", line 154, in __init__
self.start_session(desired_capabilities, browser_profile)
File "/usr/local/lib/python2.7/dist-packages/selenium/webdriver/remote/webdriver.py", line 243, in start_session
response = self.execute(Command.NEW_SESSION, parameters)
File "/usr/local/lib/python2.7/dist-packages/selenium/webdriver/remote/webdriver.py", line 312, in execute
self.error_handler.check_response(response)
File "/usr/local/lib/python2.7/dist-packages/selenium/webdriver/remote/errorhandler.py", line 242, in check_response
raise exception_class(message, screen, stacktrace)
selenium.common.exceptions.WebDriverException: Message: unknown error: Chrome failed to start: exited abnormally
(Driver info: chromedriver=2.37.543619 (a237acd3116cac3b3f0da42a000502ce3fafcb23),platform=Linux 4.13.0-36-generic x86_64)
目前正在运行selenium 3.9，chromedriver 2.37和chrome 64.尝试使用chrome 65和各种chromedrivers，但最终仍会出现此错误。
在screen上运行此操作，以便我可以退出计算机，但也可以无头地运行pyvirtualdisplay和chrome。任何冲突都会引起错误吗？