diff options
Diffstat (limited to 'x11vnc/cleanup.c')
| -rw-r--r-- | x11vnc/cleanup.c | 20 |
1 files changed, 20 insertions, 0 deletions
diff --git a/x11vnc/cleanup.c b/x11vnc/cleanup.c index 3422d35..3a584bb 100644 --- a/x11vnc/cleanup.c +++ b/x11vnc/cleanup.c @@ -226,6 +226,26 @@ int trap_getimage_xerror(Display *d, XErrorEvent *error) { static int Xerror(Display *d, XErrorEvent *error) { X_UNLOCK; + + if (getenv("X11VNC_PRINT_XERROR")) { + fprintf(stderr, "Xerror: major_opcode: %d minor_opcode: %d error_code: %d\n", + error->request_code, error->minor_code, error->error_code); + } + + if (xshm_opcode > 0 && error->request_code == xshm_opcode) { + if (error->minor_code == X_ShmAttach) { + char *dstr = DisplayString(dpy); + fprintf(stderr, "\nX11 MIT Shared Memory Attach failed:\n"); + fprintf(stderr, " Is your DISPLAY=%s on a remote machine?\n", dstr); + if (strstr(dstr, "localhost:")) { + fprintf(stderr, " Note: DISPLAY=localhost:N suggests a SSH X11 redir to a remote machine.\n"); + } else if (dstr[0] != ':') { + fprintf(stderr, " Note: DISPLAY=hostname:N suggests a remote display.\n"); + } + fprintf(stderr, " Suggestion, use: x11vnc -display :0 ... for local display :0\n\n"); + } + } + interrupted(0); if (d) {} /* unused vars warning: */ |