bug#25474: 26.0.50; Buffer content invisible

[Ivor Durham]

Here is the output from M-X dump-glyph-matrix after invoking emacs -Q:

PT = 146, BEGV = 1. ZV = 146
Cursor x = 0, y = 54, hpos = 0, vpos = 3
=============================================
  0: (1) ''
  0: (1) ';; This buffer is for text that is not saved, and for Lisp
evaluation.[\n]'
  0: (1) ''
  1: (1) ''
  1: (1) ';; To create a file, visit it with C-x C-f and enter text in its
buffer.[\n]'
  1: (1) ''
  2: (1) ''
  2: (1) '[\n]'
  2: (1) ''
  3: (1) ''
  3: (1) '[\n]'
  3: (1) ''
  4: (1) ''
  4: (1) '[\n]'
  4: (1) ''
  5: (1) ''
  5: (1) '[\n]'
  5: (1) ''
  6: (1) ''
  6: (1) '[\n]'
  6: (1) ''
  7: (1) ''
  7: (1) '[\n]'
  7: (1) ''
  8: (1) ''
  8: (1) '[\n]'
  8: (1) ''
  9: (1) ''
  9: (1) '[\n]'
  9: (1) ''
 10: (1) ''
 10: (1) '[\n]'
 10: (1) ''
 11: (1) ''
 11: (1) '[\n]'
 11: (1) ''
 12: (1) ''
 12: (1) '[\n]'
 12: (1) ''
 13: (1) ''
 13: (1) '[\n]'
 13: (1) ''
 14: (1) ''
 14: (1) '[\n]'
 14: (1) ''
 15: (1) ''
 15: (1) '[\n]'
 15: (1) ''
 16: (1) ''
 16: (1) '[\n]'
 16: (1) ''
 17: (1) ''
 17: (1) '[\n]'
 17: (1) ''
 18: (1) ''
 18: (1) '[\n]'
 18: (1) ''
 19: (1) ''
 19: (1) '[\n]'
 19: (1) ''
 20: (1) ''
 20: (1) '[\n]'
 20: (1) ''
 21: (1) ''
 21: (1) '[\n]'
 21: (1) ''
 22: (1) ''
 22: (1) '[\n]'
 22: (1) ''
 23: (1) ''
 23: (1) '[\n]'
 23: (1) ''
 24: (1) ''
 24: (1) '[\n]'
 24: (1) ''
 25: (1) ''
 25: (1) '[\n]'
 25: (1) ''
 26: (1) ''
 26: (1) '[\n]'
 26: (1) ''
 27: (1) ''
 27: (1) '[\n]'
 27: (1) ''
 28: (1) ''
 28: (1) '[\n]'
 28: (1) ''
 29: (1) ''
 29: (1) '[\n]'
 29: (1) ''
 30: (1) ''
 30: (1) '[\n]'
 30: (1) ''
 31: (1) ''
 31: (1) '[\n]'
 31: (1) ''
 32: (1) ''
 32: (1) '[\n]'
 32: (1) ''
 33: (1) ''
 33: (1) '[\n]'
 33: (1) ''
 34: (0) ''
 34: (0) ''
 34: (0) ''
 35: (0) ''
 35: (0) ''
 35: (0) ''
 36: (0) ''
 36: (0) ''
 36: (0) ''
 37: (1) ''
 37: (1) ' U:---  *scratch*      All L4     (Lisp Interaction)
'
 37: (1) ''

-----Original Message-----
From: Eli Zaretskii [mailto:eliz@gnu.org] 
Sent: Wednesday, January 18, 2017 10:30 AM
To: Ivor Durham
Cc: 25474@debbugs.gnu.org
Subject: Re: bug#25474: 26.0.50; Buffer content invisible

> From: "Ivor Durham" <ivor.durham@ivor.cc>
> Cc: <25474@debbugs.gnu.org>
> Date: Wed, 18 Jan 2017 09:24:47 -0800
> 
> The cursor does not appear. If I click in the buffer area the cut and 
> copy icons highlight while the mouse is down.
> 
> "emacs -Q -bg blue -fg red" produces a blue background for the buffer 
> but no text appears in red when I type.
> 
> "emacs -Q -fn 8x12" reports "Font '8x12' is not defined". However, I 
> checked my .Xdefaults and it specifies "emacs*font" as "9x15". Using 
> "9x15" instead of "8x12" the window opens with the blank buffer area.

Can you reconfigure with --enable-checking='yes,glyphs', rebuild, and then
invoke "M-x dump-glyph-matrix RET" after starting Emacs from the shell
command line?  Please tell what does that show in the shell window.

Thanks.