Comment 4 for bug 250712

I'm now starting to come across this too having moved to KDE 4.1 recently. I get the same error just doing:

chris@quad:~$ xhost
Maximum number of clients reachedxhost: unable to open display ":0"

That error is being returned by the X server when the client tries to send it the xauth information.

socket(PF_FILE, SOCK_STREAM, 0) = 3
connect(3, {sa_family=AF_FILE, path="/tmp/.X11-unix/X0"}, 110) = 0
[...]
writev(3, [{"l\0\v\0\0\0\22\0\20\0", 10}, {"\0\0", 2}, {"MIT-MAGIC-COOKIE-1", 18}, {"\0\0", 2}, {"\336gNSW\305\253H\230\20\263\361\265w\n@", 16}, {"", 0}], 6) = 48
read(3, 0x1a3eb50, 8) = -1 EAGAIN (Resource temporarily unavailable)
select(4, [3], NULL, NULL, NULL) = 1 (in [3])
read(3, "\0!\v\0\0\0\t\0", 8) = 8
read(3, "Maximum number of clients reache"..., 36) = 36

cheers,
Chris