Linux VDA launch gets stuck on blue\black screen after enabling FAS
Article ID: CTX584236
Updated On:
Description
When connecting Linux VDA using FAS authentication, the machine gets stuck on blue\black screen forever and the mouse cursor remains as (X). 
On HDX Log:
Following pattern repeats many times during this time.
2023-11-15 14:17:32.669 <P5180:S5> citrix-ctxlogin: : [Logon Type] Federated Authentication Logon.
2023-11-15 14:17:32.669 <P5180:S5> citrix-ctxlogin: : entry
2023-11-15 14:17:32.669 <P5180:S5> citrix-ctxlogin: : start connect to server 1
2023-11-15 14:17:32.669 <P5180:S5> citrix-ctxlogin: : entry
2023-11-15 14:17:32.670 <P5180:S5> citrix-ctxlogin: : waiting for response...
Resolution
If you have multiple FAS servers configured on group policy, ensure to add all of them on Linux VDA FAS configuration in correct order. The Server FQDN and index (order) should be consistent across Storefront & Linux VDA.
- On Linux VDA, to add more than one server address, delimit them with semicolon as below:
- sudo /opt/Citrix/VDA/bin/ctxreg create -k "HKLM\Software\Citrix\VirtualDesktopAgent\Authentication\UserCredentialService" -t "REG_SZ" -v "Addresses" -d "server1;server2" --force
- Restart ctxjproxy and ctxvda services.
- service ctxjproxy restart
- service ctxvda restart
Problem Cause
FAS GPO had more than one FAS servers in the environment, but Linux VDA was configured with only one FAS FQDN.Issue/Introduction
