Chrome Version       : 71.0.3578.127
OS Version: 11151.113.0
URLs (if applicable) : N/A
Other browsers tested: N/A
  Add OK or FAIL after other browsers where you have tested this issue:
     Safari:
    Firefox:
    IE/Edge:

What steps will reproduce the problem?

1. Connect Dell Chromebook 13 7310 (Lulu) to Plugable UD-PRO8 dock (https://plugable.com/products/ud-pro8/) based on a DisplayLink DL-165 USB 2.0 chipset (https://support.displaylink.com/knowledgebase/articles/525038-displaylink-display-resolution-support)
2. Connect Dell U2412M display (1920x1200 native resolution) to dock via DVI to DVI cable
3. Chrome OS detects display, and appears to configure it at 1920x1080 resolution but display remains blank. 
4. Manually changing resolution to a lower setting such as 1600x1200 makes display light and work properly.
5. Changing resolution back to 1920x1080 again results in a blank screen.

What is the expected result?

Dock-attached display should work at 1920x1080 resolution (maximum afforded by DisplayLink USB 2.0 DL-165 chipset)


What happens instead of that?

Dock-attached display is blank when first detected and attempted to be configured at 1920x1080 resolution, despite OS recognizing the display is connected. 


Please provide any additional information below. Attach a screenshot if
possible.

Log file attached while dock is connected and display is configured at 1600x1200 resolution and working.

A short video of the behavior is here -> https://photos.app.goo.gl/6kj8uTvNwmjDRiPg8 

Thank you in advance for any help you can provide

UserAgentString: Mozilla/5.0 (X11; CrOS x86_64 11151.113.0) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/71.0.3578.127 Safari/537.36



 

Deleted: debug-logs_20190117-160126.tgz 1.8 MB

debug-logs_20190117-160126.tgz 1.8 MB Download