Hello, This was reported by a Debian user. Please retain the CC to 849355-forwar...@bugs.debian.org in your response, so that the Debian BTS has a record.
In short when running FvwmIconMan, fvwm prints warnings to stderr when opening and closing windows. I too have had this issue in 2.6.7 (and previous versions) so I can also say it affects my Debian system. ---------- Forwarded message ---------- From: Vincent Lefevre <vinc...@vinc17.net> Date: Sun, Dec 25, 2016 at 6:37 PM Subject: Bug#849355: fvwm: GetWindowSizeHints warnings when windows and opened and closed To: Debian Bug Tracking System <sub...@bugs.debian.org> Package: fvwm Version: 1:2.6.7-2 Severity: normal I get the following warnings in my .xsession-errors file (where FVWM's standard error is redirected): [fvwm][GetWindowSizeHints]: <<WARNING>> reason: 2: The hints have been ignored because the window's current size would have become invalid. The new hints will become active when the window generates the next ConfigureRequest. when a window is opened. [fvwm][GetWindowSizeHints]: <<WARNING>> reason: 4: The hints have been ignored because the window's current size would have become invalid. The new hints will become active when the window generates the next ConfigureRequest. when a window is closed. I've tried with windows from the following applications: xterm, Emacs, xev. This seems to be always reproducible. This also occurs when I move to a different page with FvwmPager, with lots of warnings (I assume one for each window of the old and new pages). After 23 hours, the size of my .xsession-errors file is 678 KB. I don't think that the space taken is much a problem, but the major consequence is that these warnings can easily hide more interesting warning/error messages (from FVWM or applications started by it). Edit (from a followup email): This only occurs when I use the FvwmIconMan module (which I start from RestartFunction, itself invoked from InitFunction). If I remove my specific FvwmIconMan configuration, the problem still occurs. -- System Information: Debian Release: stretch/sid APT prefers unstable-debug APT policy: (500, 'unstable-debug'), (500, 'stable-updates'), (500, 'unstable'), (500, 'testing'), (500, 'stable'), (1, 'experimental') Architecture: amd64 (x86_64) Kernel: Linux 4.8.0-2-amd64 (SMP w/8 CPU cores) Locale: LANG=POSIX, LC_CTYPE=en_US.UTF-8 (charmap=UTF-8) Shell: /bin/sh linked to /bin/dash Init: systemd (via /run/systemd/system) Versions of packages fvwm depends on: ii libc6 2.24-8 ii libcairo2 1.14.8-1 ii libfontconfig1 2.11.0-6.7 ii libfreetype6 2.6.3-3+b1 ii libfribidi0 0.19.7-1 ii libgdk-pixbuf2.0-0 2.36.2-1 ii libglib2.0-0 2.50.2-2 ii libice6 2:1.0.9-1+b1 ii libperl4-corelibs-perl 0.003-2 ii libpng16-16 1.6.26-6 ii libreadline7 7.0-1 ii librplay3 3.3.2-16+b1 ii librsvg2-2 2.40.16-1 ii libsm6 2:1.2.2-1+b1 ii libstroke0 0.5.1-8 ii libtinfo5 6.0+20161126-1 ii libx11-6 2:1.6.4-2 ii libxcursor1 1:1.1.14-1+b1 ii libxext6 2:1.3.3-1 ii libxft2 2.3.2-1 ii libxinerama1 2:1.1.3-1+b1 ii libxpm4 1:3.5.12-1 ii libxrender1 1:0.9.10-1 ii perl 5.24.1~rc4-1 Versions of packages fvwm recommends: ii lxmenu-data 0.1.5-1 ii python 2.7.13-1 ii python-xdg 0.25-4 Versions of packages fvwm suggests: ii cpp 4:6.2.1-1 ii libx11-protocol-perl 0.56-7 ii m4 1.4.17-5 ii perl-tk 1:804.033-1+b3 pn stalonetray <none> -- no debconf information