Opened 20 years ago

Closed 20 years ago

Last modified 5 years ago

#1697 closed defect (worksforme)

X11: Keyboard/mouse locked after screensaver is activated

Reported by: SF/gilead Owned by: fingolfin
Priority: normal Component: Port: Linux
Version: Keywords:
Cc: Game:


I ran ScummVM in full-screen mode, was watching Flight of the Amazon Queen intro. Screensaver popped up, and after I deactivated it by moving mouse the ScummVM was in windowed mode, and keyboard and mouse were locked/unavailable. To fix it I had to kill ScummVM from the text terminal.

I believe that ScummVM should release mouse and keyboard when its window loses focus (I think it's possible this may also happen when another app grabs focus). Another good idea would be to disable screensaver when running full-screen (eg. mplayer disables screensaver when run).

System: Debian GNU/Linux Window manager: Sawfish ScummVM: 0.6.1 Game tried: Flight of the Amazon Queen (but it isn't game-related)

Ticket imported from: #1001519. Ticket imported from: bugs/1697.

Change History (10)

comment:1 by fingolfin, 20 years ago

Summary: Keyboard/mouse locked after screensaver is activatedALL: Keyboard/mouse locked after screensaver is activated

comment:2 by fingolfin, 20 years ago

This sounds like a problem specific to SDL on Linux, I'd say. Why would it change to windowed mode when a screensaver pops up? Sounds strange :-)

Anyway, somebody who uses Linux, and who knows about Screensaves on Linux, and about how those interact with apps, should look into this, I guess.

comment:3 by SF/gilead, 20 years ago

I've done some more checking and I can provide more information about this. Let's suppose we leave ScummVM running full-screen for a while so that screensaver gets activated. Then, two things can happen: 1. You don't touch keyboard and mouse. The screensaver pops up, changes resolution, displays its own stuff for a few seconds, then the resolution changes back to the one chosen by ScummVM. It looks ugly but is no serious problem. Everything works fine, also after hitting Alt+Enter and going back to the desktop. 2. You move mouse or hit some key immediately after screensaver pops up so that it starts its deactivation sequence (that is, you need to eg. move mouse during these 2-3 seconds when screensaver is visible). Then the screensaver deactivates itself, the desktop is shown, no window has focus, keyboard and mouse seems to be blocked. Then the only solution is to go to one of the text terminals (eg. Ctrl+Alt+F1) and 'killall scummvm' to fix the situation.

comment:4 by wjp, 20 years ago

I can't reproduce this. XScreensaver doesn't pop up for me when running scummvm in fullscreen.

(gentoo linux, xscreensaver 4.15, xfree 4.3.0, sdl 1.2.7, current scummvm cvs)

comment:5 by fingolfin, 20 years ago

So, gilead, what xscreensaver/xfree/sdl versions do you use?

comment:6 by fingolfin, 20 years ago

Summary: ALL: Keyboard/mouse locked after screensaver is activatedX11: Keyboard/mouse locked after screensaver is activated

comment:7 by SF/gilead, 20 years ago

I just pulled the fresh CVS version and confirmed the problem still happens with it. I use standard versions which came with Debian Unstable:

max@maxbox:~$ xscreensaver -v xscreensaver 4.16, copyright (c) 1991-2004 by Jamie Zawinski <>. xscreensaver: running as max/max (2000/2000) xscreensaver: in process 3896. xscreensaver: 01:23:01: 0: xscreensaver-gl-helper: GL visual is 0x21 (default). xscreensaver: 01:23:01: already running on display :0.0 (window 0xa00006) from process 1346 (max@maxbox). max@maxbox:~$ XFree86 -version

This is a pre-release version of XFree86, and is not supported in any way. Bugs may be reported to XFree86@XFree86.Org and patches submitted to fixes@XFree86.Org. Before reporting bugs in pre-release versions, please check the latest version in the XFree86 CVS repository (http://www.XFree86.Org/cvs).

XFree86 Version (Debian 4.3.0.dfsg.1-6 20040707142024 Release Date: 15 August 2003 X Protocol Version 11, Revision 0, Release 6.6 Build Operating System: Linux 2.4.23 i686 [ELF] Build Date: 07 July 2004 Before reporting problems, check http://www.XFree86.Org/ to make sure that you have the latest version. Module Loader present OS Kernel: Linux version 2.4.26-1-k7 (herbert@gondolin) (gcc version 3.3.3 (Debian 20040401)) #1 Sat May 1 21:40:09 EST 2004 T max@maxbox:~$ sdl-config --version 1.2.7

Here is xscreensaver config file:

max@maxbox:~$ cat .xscreensaver # XScreenSaver Preferences File # Written by xscreensaver-demo 4.16 for max on Tue Aug 3 01:06:16 2004. #

timeout: 0:02:00 cycle: 12:00:00 lock: False lockTimeout: 0:00:00 passwdTimeout: 0:00:30 visualID: default installColormap: True verbose: False timestamp: True splash: True splashDuration: 0:00:05 quad: False demoCommand: xscreensaver-demo prefsCommand: xscreensaver-demo -prefs nice: 10 memoryLimit: 0 fade: True unfade: True fadeSeconds: 0:00:01 fadeTicks: 20 captureStderr: True ignoreUninstalledPrograms:False font: *-medium-r-*-140-*-m-* dpmsEnabled: False dpmsStandby: 2:00:00 dpmsSuspend: 2:00:00 dpmsOff: 4:00:00 grabDesktopImages: True grabVideoFrames: False chooseRandomImages: False imageDirectory:

mode: one selected: 176

\ [cut] pointerPollTime: 0:00:05 windowCreationTimeout:0:00:30 initialDelay: 0:00:00 sgiSaverExtension: True mitSaverExtension: False xidleExtension: True GetViewPortIsFullOfLies:False procInterrupts: True overlayStderr: True

comment:8 by fingolfin, 20 years ago

Owner: set to fingolfin
Resolution: worksforme
Status: newclosed

comment:9 by fingolfin, 20 years ago

I asked multiple people to try to reproduce this, and nobody could... Nothing we can do about problems we can't reproduce, I am afraid. Even if we could, it'd probably be a SDL issue, though.

comment:10 by digitall, 5 years ago

Component: --Unset--Port: Linux
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