2

Problem

  • We have a virtual Windows Server 2008 R2 x64 SP1 Remote Desktop server with a handful of users logging in from Wyse C10LE thin clients running the Linux-based Wyse ThinOS.

  • A user turned on automatic updates and the server automatically
    installed updates and rebooted last night

  • When the users logged onto this server this morning, their display
    settings were changed and their dual-displays were showing as one
    large screen instead of two separate displays.

  • Users cannot change the display settings in a remote session.

Background Information and Troubleshooting

  • Uninstalled the Windows Server 2008 R2 updates that were installed last night and rebooted. I left the Security Updates in place, I only removed updates under the "Microsoft Windows" heading in Programs and Features

  • Adjusted the Wyse thin client RDP connection display settings

  • Tried to adjust Remote Desktop Session Host Configuration settings and Group Policy settings to ensure multiple displays can be used with remote connections.

Summary

  • Windows Updates were installed by mistake
  • Remote Desktop connections from our Wyse thin clients won't allow dual displays, shows one very wide display
  • All Wyse and Windows display settings I can think of have been checked
  • Some of the updates that were installed by mistake have been uninstalled and another reboot has been performed
  • This is definitely Windows Update-related. The same thing happened on another one of our Remote Desktop servers. Out of 5 RD servers, only these two have display issues when logging in from the same Wyse thin clients. – Aaron Oct 15 '14 at 20:16
  • I moved on to the security updates that were installed last night and removed them all. There were almost 20 and each of them required a reboot to remove, so I wasn't able to determine which one was the culprit, but I will be reinstalling all these updates on a test server of similar configuration so I can figure out which update caused it. – Aaron Oct 15 '14 at 20:33
  • If you or anyone else affected by this issue would like a support case set up with Microsoft, please contact Susan Bradley - see blogs.msmvps.com/bradley/2014/10/24/… – Harry Johnston Oct 24 '14 at 23:15
2

Microsoft Update KB2984972 - Uninstall this and reboot the host.

We had the identical issue today after automatic updates were applied.

  • Thanks very much. You just saved me a lot of time trying to narrow down which of the 60 updates was the culprit. – Aaron Oct 16 '14 at 13:46

protected by Community Oct 16 '14 at 11:38

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