Bug: Resolution of multiple Emacs windows on Tiger (OS X 10.4.2)

Bug: Resolution of multiple Emacs windows on Tiger (OS X 10.4.2)

[Greg Burton]

Hello!

I have been a long-time user of EMACS on OS X, but have come upon a 
new problem running any of the current Carbon EMACS distributions on 
Tiger ( I'm running 10.4.2).  This bug arises when opening multiple 
EMACS windows using the c-x 52 command.  Specifically, when I open 
the first EMACS window (when starting up the application) I get a 
normal-looking window with proper resolution of all alpha-numeric 
characters in the frame.  However, when I open a second window (using 
c-x 52) that new frame is displayed at a MUCH coarser resolution than 
is normal.  It looks as though the frame contains many fewer pixels 
than the first, because now all alpha-numeric characters are 
displayed so coarsely that you can see individual pixels making up 
each individual character.  However, when opening a THIRD window, 
that window is now displayed at the same high resolution as the 
first!  And when opening a FOURTH window, I get the same coarse 
display of the SECOND!!  This "fine-coarse" pattern continues for 
every pair of windows opened using c-x 52.  I have installed several 
different Tiger-compatible Carbon EMACS distributions and all have 
the same bug.

I'd like to get this bug fixed, so I don't have to keep opening pairs 
of windows (deleting the ODD-ordered one) to insure that all my 
working windows have the same high resolution.

Thanks!
Greg Burton

Re: Bug: Resolution of multiple Emacs windows on Tiger (OS X 10.4.2)

[Kevin Rodgers]

Greg Burton wrote:
> I have been a long-time user of EMACS on OS X, but have come upon a new 
> problem running any of the current Carbon EMACS distributions on Tiger ( 
> I'm running 10.4.2).  This bug arises when opening multiple EMACS 
> windows using the c-x 52 command.  Specifically, when I open the first 
> EMACS window (when starting up the application) I get a normal-looking 
> window with proper resolution of all alpha-numeric characters in the 
> frame.  However, when I open a second window (using c-x 52) that new 
> frame is displayed at a MUCH coarser resolution than is normal.  It 
> looks as though the frame contains many fewer pixels than the first, 
> because now all alpha-numeric characters are displayed so coarsely that 
> you can see individual pixels making up each individual character.  
> However, when opening a THIRD window, that window is now displayed at 
> the same high resolution as the first!  And when opening a FOURTH 
> window, I get the same coarse display of the SECOND!!  This 
> "fine-coarse" pattern continues for every pair of windows opened using 
> c-x 52.  I have installed several different Tiger-compatible Carbon 
> EMACS distributions and all have the same bug.
> 
> I'd like to get this bug fixed, so I don't have to keep opening pairs of 
> windows (deleting the ODD-ordered one) to insure that all my working 
> windows have the same high resolution.

How recently were these Tiger-compatible Carbon Emacs distributions
updated from CVS?

Does this happen when you start emacs with both the -q (aka
--no--init-file) and --no-site-file options?

Perhaps the before-make-frame-hook or after-make-frame-functions
variables have been customized and are toggling some display feature
(use `C-h v' to see their values).

-- 
Kevin