mintty window won't open

[Ryan Johnson]

  Hi all,

I switched from rxvt to mintty yesterday, and it worked great all day. 
However, today when I try to open a new mintty window from within an 
existing one, nothing happens. The process starts, but no window 
appears. This happens when attempting to open both 0.8.3 and 0.9b2 
windows from a 0.9b2 window. The broken window also does the same thing 
to tkdiff but is able to run xterm without problems.

Oddly, using the shortcut from the start menu (0.8.3) still works, and 
any windows I fire up from it (including 0.9b2) work fine after that and 
can in turn fire up their own new instances. The broken windows are also 
permanently in alternate screen mode as far as mouse wheel goes (up/down 
arrow keys instead of scrolling the buffer) and their scrollbars are 
disabled even though they have many hundreds of lines of scrollback.

Running strace on a broken mintty instance shows:
>   220 5944199 [main] mintty 2908 peek_windows: window 4(0x0) ready
>    61 5944260 [main] mintty 2908 select_stuff::wait: gotone 1
>    58 5944318 [main] mintty 2908 select_stuff::wait: returning 0
>    55 5944373 [main] mintty 2908 select_stuff::cleanup: calling 
> cleanup routines
>  3577 5947950 [main] mintty 2908 set_bits: me 0x4B6630, testing fd 4 
> (/dev/windows)
>   115 5948065 [main] mintty 2908 set_bits: ready 1
>   165 5948230 [main] mintty 2908 select_stuff::poll: returning 1
>    88 5948318 [main] mintty 2908 select_stuff::cleanup: calling 
> cleanup routines
>   151 5948469 [main] mintty 2908 select_stuff::~select_stuff: deleting 
> select records
>   981 5949450 [main] mintty 2908 cygwin_select: 5, 0x22CA60, 0x0, 0x0, 0x0
>   226 5949676 [main] mintty 2908 dtable::select_read: /dev/ptmx fd 3
>   254 5949930 [main] mintty 2908 dtable::select_read: /dev/windows fd 4
>   175 5950105 [main] mintty 2908 cygwin_select: to NULL, ms FFFFFFFF
>   102 5950207 [main] mintty 2908 cygwin_select: sel.always_ready 0
>   332 5950539 [main] mintty 2908 select_stuff::wait: m 2, ms 4294967295
> 25103 5975642 [main] mintty 2908 select_stuff::wait: woke up.  
> wait_ret 2.  verifying
The above is repeated slightly more often than once a second and is the 
same every time. I don't know if this is relevant.

I'm running cygwin-1.7.7-1 with XP Pro SP3; mintty-0.8.3-1, and 
mintty-0.9b2 built manually from source.

I've suspended and resumed my machine several times since those windows 
were opened, maybe this has something to do with it?

Thanks,
Ryan






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