tickets #150578
Updated by zcjia 24 days ago
Updates:
1. use "sudo update-alternatives --all" to select xdm and icewm.
2. also remember to use "sudo rcxdm restart" to update /etc/X11/xdm/xdm-config,
see https://bugzilla.suse.com/show_bug.cgi?id=1225646
**Description:**
SLED try to run Xephyr -query to check if you get gdm prompt on the SLES
with XDMCP enabled in xdm and icewm
**Setup:**
```
Client: SLED15
Note: you may need to stop firewall on client side
Server: SLES12SP3
Launch: yast2
Click on: System \> /etc/sysconfig Editor
Desktop \> Display manager \> DISPLAY_MANAGER_REMOTE_ACCESS \> yes
Firewall \> Allowed Services \> Service to Allow(xdmcp) \> Add \>
Next
Click Finish
set DISPLAYMANAGER=""xdm"" in /etc/sysconfig/displaymanager
set DEFAULT_WM=""icewm"" in /etc/sysconfig/windowmanager
Restart gdm or reboot
You have to log out the test user's session first, Multiple logins
are not supported
```
**Steps:**
```
1. Launch terminal and run:
Xephyr -query IP_of_server -screen widthxheight :1
2. Input the password and log in the system
3. Launch some applications and do some random operation
4. Close the window
```
Note:
https://fate.suse.com/317876
**Expected Result:**
1. It starts a graphical login screen(xdm) in the window
2. Log in successfully with no errors and the window manager is icewm
3. Operation as normal
4. The window can be closed,
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