`test_that ${DUT_IP} video_PlaybackPerf.vp9` fails with timeouts or other errors when virtual terminal is open on DUT but succeeds when on OOBE screen

test errors seen:
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/tmp/test_that_results_pIyoVs/results-1-video_PlaybackPerf.vp9                    [  FAILED  ]
/tmp/test_that_results_pIyoVs/results-1-video_PlaybackPerf.vp9                      FAIL: Unhandled BrowserConnectionGoneException: Timed out while waiting 240s for _GetDevToolsClient.
/tmp/test_that_results_pIyoVs/results-1-video_PlaybackPerf.vp9/video_PlaybackPerf [  FAILED  ]
/tmp/test_that_results_pIyoVs/results-1-video_PlaybackPerf.vp9/video_PlaybackPerf   FAIL: Unhandled BrowserConnectionGoneException: Timed out while waiting 240s for _GetDevToolsClient.
/tmp/test_that_results_pIyoVs/results-1-video_PlaybackPerf.vp9/video_PlaybackPerf   10/25 15:36:10.111 ERROR|           browser:0054| Failed with BrowserConnectionGoneException while starting the browser backend.
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/tmp/test_that_results_JEw2ba/results-1-video_PlaybackPerf.vp9                    [  FAILED  ]
/tmp/test_that_results_JEw2ba/results-1-video_PlaybackPerf.vp9                      FAIL: Unhandled DevToolsClientConnectionError: ''
/tmp/test_that_results_JEw2ba/results-1-video_PlaybackPerf.vp9/video_PlaybackPerf [  FAILED  ]
/tmp/test_that_results_JEw2ba/results-1-video_PlaybackPerf.vp9/video_PlaybackPerf   FAIL: Unhandled AssertionError: sh: 0: getcwd() failed: No such file or directory
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To reproduce:
1. power on DUT and switch to virtual terminal 2
2. run `test_that ${DUT_IP} video_PlaybackPerf.vp9` on workstation