I verified the xserver-xorg-core-hwe-16.04 on Dell Precision 7730(I+A). This external monitor works normal.
** Tags removed: verification-needed-xenial ** Tags added: verification-done-xenial -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to xorg-server in Ubuntu. https://bugs.launchpad.net/bugs/1789913 Title: X crashes with "randr: falling back to unsynchronized pixmap sharing" when connecting to an external monitor via HDMI (I+A) Status in xorg-server package in Ubuntu: Fix Released Status in xorg-server-hwe-16.04 package in Ubuntu: Invalid Status in xorg-server source package in Xenial: Won't Fix Status in xorg-server-hwe-16.04 source package in Xenial: Fix Committed Status in xorg-server source package in Bionic: Fix Committed Status in xorg-server-hwe-16.04 source package in Bionic: Invalid Bug description: [Impact] X server crashes in certain cases on I+A hybrid machines with modesetting+amdgpu drivers. [Test case] Connect an external monitor, check that it doesn't crash X. [Regression potential] This commit was provided by AMD and reviewed by an NVIDIA engineer, and after a few iterations it got applied upstream. We'll test it with many driver combinations (modesetting+amdgpu, m+nvidia, m+m...) to check that they all (still) work. -- Copied from a private bug: - Steps to see the issue: 1. Connect a monitor to UUT via HDMI port Expected Result: Video outputs successfully in the monitor Actual Result: X crashes into a login screen - BIOS: 0.7.3 - AMD driver release: 18.10, 18.20RC8 and 18.20RC9 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/xorg-server/+bug/1789913/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : desktop-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp
