Public bug reported:
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)
** Affects: xorg-server (Ubuntu)
Importance: Undecided
Status: New
** Affects: xorg-server-hwe-16.04 (Ubuntu)
Importance: Undecided
Status: Invalid
** Affects: xorg-server (Ubuntu Xenial)
Importance: Undecided
Status: Won't Fix
** Affects: xorg-server-hwe-16.04 (Ubuntu Xenial)
Importance: Undecided
Status: New
** Affects: xorg-server (Ubuntu Bionic)
Importance: Undecided
Status: New
** Affects: xorg-server-hwe-16.04 (Ubuntu Bionic)
Importance: Undecided
Status: Invalid
** Also affects: xorg-server-hwe-16.04 (Ubuntu)
Importance: Undecided
Status: New
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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:
New
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:
New
Status in xorg-server source package in Bionic:
New
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
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