FVWM: HTML <INPUT>

[John Faucett]

We have displays with multiple monitors and multiple NVIDIA cards. When
Firefox displays a page with <INPUT> widgets and something is entered into
the widget, then X11 hangs or crashes. This doesn't happen if there is only
one NVIDIA card being used or if a window manager other than FVWM is used.
It also seems to be independent of the driver (NIVIDIA-supplied or elrepo,
for example). Any ideas on how to fix this?

[Dominique Michel]

Le Tue, 7 May 2013 22:59:32 +0000 (UTC),

Post by John Faucett
We have displays with multiple monitors and multiple NVIDIA cards.
When Firefox displays a page with <INPUT> widgets and something is
entered into the widget, then X11 hangs or crashes. This doesn't
happen if there is only one NVIDIA card being used or if a window
manager other than FVWM is used. It also seems to be independent of
the driver (NIVIDIA-supplied or elrepo, for example). Any ideas on
how to fix this?

Get a core file of a crash and inspect it with gdb.

Dominique

[Faucett, John A]

When FVWM hangs on a Firefox page with an HTML <INPUT> widget (one must actually enter text), the backtrace is:

#0 0x00e66402 in __kernel_vsyscall ()
#1 0x0067a7eb in poll () from /lib/libc.so.6
#2 0x007b0aa9 in ?? () from /usr/lib/libX11.so.6
#3 0x007b0e8f in _XRead () from /usr/lib/libX11.so.6
#4 0x007b1854 in _XReply () from /usr/lib/libX11.so.6
#5 0x007914a0 in XGetGeometry () from /usr/lib/libX11.so.6
#6 0x0806c371 in HandlePropertyNotify (ea=0xbfdfceb4) at events.c:3314
#7 0x0806b619 in dispatch_event (e=0xbfdfcee4) at events.c:4138
#8 0x0806bcff in HandleEvents () at events.c:4182
#9 0x0808d01a in main (argc=3, argv=0xbfdfd994) at fvwm.c:2591

I would guess that FVWM is trying to get geometry information from the X11 server, which never returns.

Does this necessarily mean that this is an X11 problem?

Correspondence

[Dan Espen]

Post by Faucett, John A
#0 0x00e66402 in __kernel_vsyscall ()
#1 0x0067a7eb in poll () from /lib/libc.so.6
#2 0x007b0aa9 in ?? () from /usr/lib/libX11.so.6
#3 0x007b0e8f in _XRead () from /usr/lib/libX11.so.6
#4 0x007b1854 in _XReply () from /usr/lib/libX11.so.6
#5 0x007914a0 in XGetGeometry () from /usr/lib/libX11.so.6
#6 0x0806c371 in HandlePropertyNotify (ea=0xbfdfceb4) at events.c:3314
#7 0x0806b619 in dispatch_event (e=0xbfdfcee4) at events.c:4138
#8 0x0806bcff in HandleEvents () at events.c:4182
#9 0x0808d01a in main (argc=3, argv=0xbfdfd994) at fvwm.c:2591
I would guess that FVWM is trying to get geometry information from the X11 server, which never returns.
Does this necessarily mean that this is an X11 problem?

Any particular HTML or web page?

I use Firefox with input widgets a lot.