** Description changed: Binary package hint: vlc In karmic , while playing videos , VLC does not inhibit screensaver. This is a regression from the behavior in jaunty. ProblemType: Bug Architecture: i386 CheckboxSubmission: 417990aadff2335cd485c57bb06c8968 CheckboxSystem: 5484a8dd99f006173bd2ac53fa4837c2 Date: Sun Sep 13 19:58:49 2009 DistroRelease: Ubuntu 9.10 Package: vlc 1.0.1-2ubuntu1 ProcEnviron: LANGUAGE=en_US.UTF-8 LANG=en_US.UTF-8 SHELL=/bin/bash ProcVersionSignature: Ubuntu 2.6.31-10.32-generic SourcePackage: vlc Uname: Linux 2.6.31-10-generic i686 ************************** **** SRU Justification **** ************************** ** Impact of bug ** The legacy inhibit API was removed from gnome-screensaver, as the gnome-session inhibit API is the preferred way to inhibit the screensaver. The legacy API required applications to "poll" the screensaver regularly to simulate user activity. The new API requires applications to register inhibitors, which will exist until they are removed, or the application exits. xdg-screensaver is used by a lot of desktop-neutral applications including games and VLC, and this wraps the legacy gnome-screensaver API in GNOME. This means that screensaver inhibiting is currently broken in GNOME for any application which hasn't been ported to the new inhibit API. ** Description of changes ** The existing legacy API still exists in gnome-screensaver, but is currently just a stub. I've added code to this which resets the IDLETIME counter, by simulating fake keypresses using XTEST. The code is already used in gnome-session and totem, and this method of resetting IDLETIME is also used in other applications. Resetting IDLETIME will prevent gnome-session from setting the session idle (which prevents the screensaver from activating), and will also prevent gnome-power-manager from dimming the display. ** Regression potential ** Minimal. The additional functionality is quite self-contained, and the existing interface doesn't work at all anyway. The chosen method of resetting IDLETIME is already used. ** TEST CASE ** - Using the following versions of gnome-screensaver in turn, perform the steps detailed below + Using the following versions of gnome-screensaver in turn, perform the steps detailed below. + + PLEASE MAKE SURE that you run "killall gnome-screensaver && gnome- + screensaver" after installing the new version, to ensure that you are + testing the new version. - 2.28.0-0ubuntu3.1 (karmic-security) - 2.28.0-0ubuntu3.2 (karmic-proposed) 1) Open gnome-screensaver-preferences, set the timeout to 1 minute and check "Activate screensaver when computer is idle" 2) Create a script in your home folder called "gss-test.sh", and containing the following: - #!/bin/sh + #!/bin/sh - while true; do - gnome-screensaver-command --poke - sleep 30 - done + while true; do + gnome-screensaver-command --poke + sleep 30 + done 3) Run the script (sh ~/gss-test.sh), and wait With version 2.28.0-0ubuntu3.1 of gnome-screesaver, the screensaver will activate after 1 minute. - With version 2.28.0-0ubuntu3.2, the screensaver will not activate as long as the script is still running. + With version 2.28.0-0ubuntu3.2, the screensaver will not activate as long as the script is still running. If you run "gnome-power-manager --verbose" in a separate terminal, you will notice the following sequence of messages each time the IDLETIME counter is reset by gnome-screensaver, which you won't see with the old version: + + TI:21:57:13 TH:0x177e890 FI:gpm-idle.c FN:gpm_idle_idletime_reset_cb,394 + - idletime reset + TI:21:57:13 TH:0x177e890 FI:gpm-idle.c FN:gpm_idle_evaluate,213 + - session_idle=0, session_inhibited=0, x_idle=0 + TI:21:57:13 TH:0x177e890 FI:gpm-idle.c FN:gpm_idle_set_mode,133 + - Doing a state transition: normal + TI:21:57:13 TH:0x177e890 FI:gpm-backlight.c FN:gpm_backlight_notify_system_idle_changed,443 + - we have just been idle for 20.017084s + TI:21:57:13 TH:0x177e890 FI:gpm-backlight.c FN:gpm_backlight_notify_system_idle_changed,468 + - changing powersave idle status to 0 + TI:21:57:13 TH:0x177e890 FI:gpm-backlight.c FN:gpm_backlight_brightness_evaluate_and_set,201 + - no dimming hardware + TI:21:57:13 TH:0x177e890 FI:gpm-idle.c FN:gpm_idle_evaluate,238 + - X not idle + 4) Exit the script by pressing CTRL+C in the terminal
-- gnome-screensaver-command --poke no longer inhibits screensaver https://bugs.launchpad.net/bugs/428884 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
