I'm having trouble getting the GDM login screen to show up when I connect from a remote host. I'm using Xming on the local Windows machine, but every time I connect to the remote server all I get is a gray window with the X cursor. I have "Enable=true" in the [xdmcp] section of /etc/gdm/custom.conf. IPtables is disabled. I've googled around and read through the xdmcp page on tldp.org but have not come up with anything. Can anyone help with this issue?
On Wed, Oct 1, 2008 at 6:04 PM, Sean Carolan scarolan@gmail.com wrote:
I'm having trouble getting the GDM login screen to show up when I connect from a remote host.
I should add to this that I'm able to run X-windows programs on my local workstation, such as gnome-terminal, xclock, etc. Xming opens them up with no issues whatsoever. It's just that I can't get a gdm login screen when trying to connect via xdmcp.
I should add to this that I'm able to run X-windows programs on my local workstation, such as gnome-terminal, xclock, etc. Xming opens them up with no issues whatsoever. It's just that I can't get a gdm login screen when trying to connect via xdmcp.
If it's any help here is what I see in the /var/log/messages file with debug turned on. IP address and hostname have been changed to protect the innocent:
Oct 1 20:24:22 server gdm[14790]: gdm_xdmcp_decode: Received opcode QUERY from client 10.10.10.10 Oct 1 20:24:22 server gdm[14790]: gdm_xdmcp_handle_query: Opcode 2 from 10.10.10.10 Oct 1 20:24:22 server gdm[14790]: gdm_xdmcp_send_willing: Sending WILLING to 10.10.10.10 Oct 1 20:24:23 server gdm[14790]: gdm_xdmcp_decode: Received opcode REQUEST from client 10.10.10.10 Oct 1 20:24:23 server gdm[14790]: gdm_xdmcp_handle_request: Got REQUEST from 10.10.10.10 Oct 1 20:24:23 server gdm[14790]: gdm_xdmcp_handle_request: xdmcp_pending=0, MaxPending=4, xdmcp_sessions=0, MaxSessions=16, ManufacturerID= Oct 1 20:24:23 server gdm[14790]: gdm_xdmcp_display_dispose_check (cpe-10-10-10-10.austin.res.rr.com:0) Oct 1 20:24:23 server gdm[14790]: gdm_auth_secure_display: Setting up access for cpe-10-10-10-10.austin.res.rr.com:0 Oct 1 20:24:23 server gdm[14790]: gdm_auth_secure_display: Setting up access Oct 1 20:24:23 server gdm[14790]: gdm_auth_secure_display: Setting up access for cpe-10-10-10-10.austin.res.rr.com:0 - 1 entries Oct 1 20:24:23 server gdm[14790]: gdm_xdmcp_display_alloc: display=cpe-10-10-10-10.austin.res.rr.com:0, session id=-246206558, xdmcp_pending=1 Oct 1 20:24:23 server gdm[14790]: gdm_xdmcp_send_accept: Sending ACCEPT to 10.10.10.10 with SessionID=-246206558 Oct 1 20:24:23 server gdm[14790]: gdm_xdmcp_decode: Received opcode MANAGE from client 10.10.10.10 Oct 1 20:24:23 server gdm[14790]: gdm_xdmcp_handle_manage: Got MANAGE from 10.10.10.10 Oct 1 20:24:23 server gdm[14790]: gdm_xdmcp_handle_manage: Got Display=0, SessionID=-246206558 Class=MIT-unspecified from 10.10.10.10 Oct 1 20:24:23 server gdm[14790]: gdm_xdmcp_handle_manage: Looked up cpe-10-10-10-10.austin.res.rr.com:0 Oct 1 20:24:23 server gdm[14790]: gdm_choose_indirect_lookup: Host 10.10.10.10 not found Oct 1 20:24:23 server gdm[14790]: gdm_forward_query_lookup: Host 10.10.10.10 not found Oct 1 20:24:23 server gdm[14790]: gdm_display_manage: Managing cpe-10-10-10-10.austin.res.rr.com:0 Oct 1 20:24:23 server gdm[14790]: loop check: last_start 0, last_loop 0, now: 1222907063, retry_count: 0 Oct 1 20:24:23 server gdm[14790]: Resetting counts for loop of death detection Oct 1 20:24:23 server gdm[14790]: gdm_display_manage: Forked slave: 14864 Oct 1 20:24:23 server gdm[14864]: gdm_slave_start: Starting slave process for cpe-10-10-10-10.austin.res.rr.com:0 Oct 1 20:24:23 server gdm[14864]: gdm_slave_start: Loop Thingie Oct 1 20:24:23 server gdm[14864]: gdm_slave_run: Opening display cpe-10-10-10-10.austin.res.rr.com:0
A bit more info if it's helpful: I have tried kdm as well and get the exact same results, gray screen with an X cursor, no login window or greeter at all.
Hi,
Set Enable=true under XDMCP section on /usr/share/gdm/defaults.conf and relogin it will work you out.
Regards, Lingu
On Thu, Oct 2, 2008 at 4:34 AM, Sean Carolan scarolan@gmail.com wrote:
I'm having trouble getting the GDM login screen to show up when I connect from a remote host. I'm using Xming on the local Windows machine, but every time I connect to the remote server all I get is a gray window with the X cursor. I have "Enable=true" in the [xdmcp] section of /etc/gdm/custom.conf. IPtables is disabled. I've googled around and read through the xdmcp page on tldp.org but have not come up with anything. Can anyone help with this issue? _______________________________________________ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Set Enable=true under XDMCP section on /usr/share/gdm/defaults.conf and relogin it will work you out.
I thought about this until I read the directions in the defaults.conf file:
# This file should not be updated by hand. Since GDM 2.13.0.4, # configuration choices in the /etc/X11/gdm/gdm.conf-custom file will # override the default values specified in this file (installation # locations of the configuration files may vary for different distros). # This defaults.conf file may be overwritten on upgrade, so to ensure # that your configuration choices are not lost, please make sure that # your changes are made only the the custom.conf file.
Indeed, the gdmsetup program does not touch this file, rather it edits the custom.conf file.
-
lingu -
Sean Carolan