* xdisp.c (redisplay_window): Don't call try_window_id if the

	window isn't starting at the beginning of the line.

1 files changed, 2 insertions, 0 deletions

diff --git a/src/xdisp.c b/src/xdisp.c
index 6c6ee02a07d..3acdaed0740 100644
--- a/src/xdisp.c
+++ b/src/xdisp.c
@@ -950,6 +950,8 @@ redisplay_window (window, just_this_one)
   else if (just_this_one && !MINI_WINDOW_P (w)
            && point >= startp
            && XFASTINT (w->last_modified)
+           /* or else vmotion on first line won't work.  */
+           && ! NILP (w->start_at_line_beg)
            && ! EQ (w->window_end_valid, Qnil)
            && do_id && !clip_changed
            && !blank_end_of_window