Please can you try whether "xhost +local:" before "gksu gnome-system-log"
does help for you ?
Yes, it works then.
Before:
$ gksu gnome-system-log
kvm_open: kvm_nlist: No such file or directory
No protocol specified
(gnome-system-log:8938): gnome-system-log-CRITICAL **: Unable to parse
arguments: Cannot open display:
LibGTop-Server: pid 8949 received eof.
And gnome-system-log not displayed.
Then do:
$ xhost +local:
non-network local connections being added to access control list
After this gnome-system-log is displayed:
$ gksu gnome-system-log
kvm_open: kvm_nlist: No such file or directory
$ LibGTop-Server: pid 9202 received eof.
The attached patch fixes/workrounds it for me.
The problem is that for tty/pipes/sockets
the data might not be ready, but the code
in gksu-run-helper.c assumes that they are :-(
Petr
--- libgksu/gksu-run-helper.c~ 2009-06-29 20:06:56.000000000 +0200
+++ libgksu/gksu-run-helper.c 2010-12-13 19:34:23.000000000 +0100
@@ -117,6 +117,13 @@
GString *s = g_string_sized_new(255);
read_gstring_from_stdin(s);
+
+ if ( s->str[0] != 'g') /* should start with "gksu-run: ") */
+ {
+ s = g_string_truncate(s,0);
+ read_gstring_from_stdin(s);
+ }
+
/* strlen ("gksu-run: ") == 10, see su.c */
xauth_display = g_strdup_printf ("%s", s->str + 10);
