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In this guide, we are going to describe some possible causes that can cause the xdmcp gdm_slave_xioerror_handler fatal error, and then I will suggest some possible fixes that you can try to resolve this issue.
Problem
- Gnome session crashes intermittently when accessed via XDMCP on a huge Windows system:
21. 10:23:24 cmilogin1 gdm [21316]: gdm_slave_xioerror_handler: Fatal X error - restart HardeepOctober 21, 10:24:07 am cmilogin1 gdm [22092]: gdm_slave_xioerror_handler: Fatal X error - restart lgray0110:32:19 21 cmilogin1 gdm [22611]: gdm_slave_xioerror_handler: Fatal X error - restart tpattonOctober 21, 10:35:02 am cmilogin1 gdm [23546]: gdm_slave_xioerror_handler: Fatal X error - restarting cscott0October 21, 10:53:49 am cmilogin1 gdm [16413]: gdm_slave_xioerror_handler: Fatal X error - restart cmiindiOctober 21, 11:18:18 am cmilogin1 gdm [25563]: gdm_slave_xioerror_handler: Fatal X error - restart jbordenOctober 21, 11:18:27 am cmilogin1 gdm [25370]: gdm_slave_xioerror_handler: Fatal X error - restart jborden
Environment
- Red Hat Enterprise Linux 5
- xorg-x11-server
- Hummingbird eXceed XDMCP Driver
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- mojomagi
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- Added: 10 April2009
- 26 posts
Subject: [Fixed] Gdm Crash Versus Gdm_slave_xioerror_handler
Maybe it will work on computers with 3D accelerated graphics cards, I won’t.
I tried to program 3D graphics on Kalgebra with real options disabled and it crashed immediately. This suggests that the problem is related.
I’ll try to activate UXA and EXA at the same time, it might work.
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EDIT: I tried Kalgebra but (after I just logged in) it didn’t stop this time either. I think I’m done, I’ll try what I said anyway.
2. EDIT: I’ve done a lot more experimentation, it keeps crashing even when I have uxa and exa together when I try to create a 3D graph after the last reboot. Means it has to do with 3D acceleration, but I haven’t found a working setup yet. If I find anything, I’ll send home here.
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