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xdm and gpm conflict

Package: xbase and gpm
Version: 3.1.2 and 1.00
Revision: 2 and 1

Today, when I restarted my machine, I found that xdm won't behave
meaningfully with gpm running.

My initial problem (before reboot) was that control-R killed xdm
(instead of getting me another login prompt).  Furthermore, when I
started xdm manually, it exited immediately.  So, I rebooted to see if
that would clean things up...

When I rebooted, xdm generated a black screen alternating with some
noisey horizontal white lines in the middle half of the screen --
cycle time was on the order of one second.  I didn't like this so I
hit a variety of keys to attempt to regain control (mostly stuff like
control-alt-f1, control-alt-f2, and control-r).  After a half-dozen
cycles or so, it terminated with a general protection fault:

Aug 28 08:13:01 rdm kernel: general protection: 0000
Aug 28 08:13:01 rdm kernel: EIP:    0010:0014d71d
Aug 28 08:13:01 rdm kernel: EFLAGS: 00010206
Aug 28 08:13:01 rdm kernel: eax: 6e6f632d   ebx: 001c3d90   ecx: 00915dd0   edx: 0080e000
Aug 28 08:13:01 rdm kernel: esi: 0008baf4   edi: 0008baf4   ebp: 00915e8c   esp: 00915e00
Aug 28 08:13:01 rdm kernel: ds: 0018   es: 0018   fs: 002b   gs: 002b   ss: 0018
Aug 28 08:13:01 rdm kernel: Process xdm (pid: 233, process nr: 23, stackpage=00915000)
Aug 28 08:13:01 rdm kernel: Stack: 0008ba80 0008baf4 bffff78c 00000013 00000000 00915e1c 0093a8c0 742f0001 
Aug 28 08:13:01 rdm kernel:        2e2f706d 2d313158 78696e75 0030582f 00000000 00000000 00000000 00000000 
Aug 28 08:13:01 rdm kernel:        00000000 00000003 00000004 00001000 00918000 00000202 ffffffff 00001000 
Aug 28 08:13:01 rdm kernel: Call Trace: 00129a74 00129e1c 0011fe1f 00133949 00134908 00127b6f 00127c53 
Aug 28 08:13:01 rdm kernel:        00133a1b 0011fe1f 0011fe1f 001351bc 00110709 
Aug 28 08:13:01 rdm kernel: Code: ff 00 8b 94 24 00 01 00 00 8b 42 10 8b 72 14 8b 7e 10 89 b8 

Poking around a bit, I remembered that I'd installed gpm.  Looking at
the manual page for gpm (and xdm), I noticed mention of a potential
conflict on the gpm page -- something about how gpm would conflict
with X if a single-open mouse were being used.  So, I de-installed
gpm.  I think I tried xdm again at that point and had it not work --
so maybe there are some other pieces to this puzzle.  Anyways, I
rebooted a second time and xdm came up ok.

Probably later on I'll try playing with xdm some more to see if I can
discover further aspects to this problem.


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