this is actually fixed in bionic xorg-server (2:1.19.6-1ubuntu4.1) bionic; urgency=medium
* prime-sync-refactor.diff: Fix crash on modesetting+amdgpu hybrid. (LP: #1789913) * sync-i965-pciids.diff: Update intel pci-id's. (LP: #1789924) -- Timo Aaltonen <tjaal...@debian.org> Wed, 05 Sep 2018 14:38:25 +0300 ** Changed in: xorg-server (Ubuntu Bionic) Status: Triaged => Fix Released -- 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/1828790 Title: On a Wyse system, if Intel DP is connected before the AMD one, there's a 50% chance the AMD one would have no output 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 Released Status in xorg-server source package in Bionic: Fix Released Status in xorg-server-hwe-16.04 source package in Bionic: Invalid Bug description: Summary: On extended SKU (AMD SKU), boot to OS with monitor connecting to Intel DP, then connect another monitor to AMD DP, there is a 50% chance AMD DP has no video output to monitor. Step to reproduce: 1. Attached a 2k/4K monitor to Intel UMA DP port. 2. Power on system and boot to desktop. 3. Attach another 2k/4K monitor to AMD Graphics DP port. Expect result: Both monitors can display correctly Actually result: AMD DP monitor will be black screen. (Intel DP output still normal) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/xorg-server/+bug/1828790/+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