On F21 (seen on both x86_64 and aarch64 so far), gnome-screensaver running under Xvnc (tigervnc-server built with xorg-x11-server-source-1.16.3) will crash immediately upon attempting to lock the screen. This does not occur under Xorg, nor on F22 where tigervnc-server is built with xorg-x11-server-source-1.17.1. Backtrace: #0 0x0000000000000000 in () #1 0x00000000004177a8 in gs_fade_reset (fade=0x2641ba0) at gs-fade.c:839 #2 0x000000000040dc8c in unfade_idle (manager=0x2486d90) at gs-manager.c:757 #3 0x00000036a664a263 in g_timeout_dispatch () at /lib64/libglib-2.0.so.0 #4 0x00000036a66497fb in g_main_context_dispatch () at /lib64/libglib-2.0.so.0 #5 0x00000036a6649b98 in g_main_context_iterate.isra () at /lib64/libglib-2.0.so.0 #6 0x00000036a6649ec2 in g_main_loop_run () at /lib64/libglib-2.0.so.0 #7 0x0000003ad8bec715 in gtk_main () at /lib64/libgtk-3.so.0 #8 0x0000000000409772 in main (argc=1, argv=0x7ffcc59afae8) at gnome-screensaver.c:105 Which AFAICS comes to this code: for (i = 0; i < fade->priv->num_screens; i++) fade->priv->screen_priv[i].fade_finish (fade, i); The problem is fade_finish is never defined where FADE_TYPE_NONE, so the result is a NULL reference.
gnome-screensaver-3.6.1-11.fc22 has been submitted as an update for Fedora 22. https://admin.fedoraproject.org/updates/gnome-screensaver-3.6.1-11.fc22
gnome-screensaver-3.6.1-11.fc21 has been submitted as an update for Fedora 21. https://admin.fedoraproject.org/updates/gnome-screensaver-3.6.1-11.fc21
Package gnome-screensaver-3.6.1-11.fc21: * should fix your issue, * was pushed to the Fedora 21 testing repository, * should be available at your local mirror within two days. Update it with: # su -c 'yum update --enablerepo=updates-testing gnome-screensaver-3.6.1-11.fc21' as soon as you are able to. Please go to the following url: https://admin.fedoraproject.org/updates/FEDORA-2015-11684/gnome-screensaver-3.6.1-11.fc21 then log in and leave karma (feedback).
gnome-screensaver-3.6.1-11.fc21 has been pushed to the Fedora 21 stable repository. If problems still persist, please make note of it in this bug report.
gnome-screensaver-3.6.1-11.fc22 has been pushed to the Fedora 22 stable repository. If problems still persist, please make note of it in this bug report.