These are working with 16.04 perfectly, I updated to 16.10 and had to restore from backups to get back to 16.10. Then I booted from the live- cd to capture this bug.
Scenarios: 1. mDP to HDMI cable connected to a 1080p monitor (Dell E248Wfp); that is the simple example and they all fail with the same result. 2. same Dell via DP2 on the doc using a DP to single-link DVI adapter (like http://www.monoprice.com/product?c_id=104&cp_id=10428&cs_id=1042801&p_id=4827) 3. DP2 on the doc connected to a Shimian LCD running at 2560x1440 connected via a Dell (BizLink) DisplayPort to DVI Dual Link Adapter (like https://www.amazon.com/Dell-BIZLINK-DisplayPort-Adapter-Powered/dp/B003XYBA72). But I didn't want to confuse the issue with that more niche bit of hardware. -- You received this bug notification because you are a member of Ubuntu-X, which is subscribed to xorg in Ubuntu. https://bugs.launchpad.net/bugs/1631519 Title: No X on boot with external monitor connected To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/xorg/+bug/1631519/+subscriptions _______________________________________________ Mailing list: https://launchpad.net/~ubuntu-x-swat Post to : [email protected] Unsubscribe : https://launchpad.net/~ubuntu-x-swat More help : https://help.launchpad.net/ListHelp
