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PRIVACY: F25 screen saver / lock multi-monitor fail

asked 2016-12-19 11:20:08 -0600

pwrob gravatar image

updated 2016-12-23 18:52:57 -0600


Just upgraded my dual-screen setup to Fedora 25 (from F23) over the weekend. When I invoke the screensaver / lock my computer, only the screen with the mouse pointer in it at that time displays the screensaver / locks. The other screen, while inaccessible with the keyboard or mouse, remains plainly visible. I can e.g. watch the system monitor applet in the toolbar scroll by.

Additionally, the actual action of locking the screen appears to not take effect at first -- both screens remain visible; only when I e.g. press a key, or move the mouse, does the one screen appear locked and ask for the password to unlock.

Finally, when testing various screensavers, again only one of the screens display the screensaver being tested.

Apologies if this is a duplicate. If not, I'll gladly provide more info, just need to know what and how.

Thanks, Pwrob

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no solution here, but an observation to add: After waking up from sleep mode you see often for 2 seconds the desktop until the screensaver gets "active" and shows the lock screen.

ceres2009 gravatar imageceres2009 ( 2016-12-19 14:37:26 -0600 )edit

What DE are you using? (gnome?).

geforce gravatar imagegeforce ( 2016-12-19 17:19:01 -0600 )edit

I use MATE as my window manager. If I should try different options (managers, screensaver invocations, parameters, what have you), let me know what and how.

pwrob gravatar imagepwrob ( 2016-12-19 19:27:33 -0600 )edit

I believe the Mate maintainer is aware of the issue, filing a issue

or here

Is more likely to yield a fix than asking here.

geforce gravatar imagegeforce ( 2016-12-24 01:42:34 -0600 )edit

2 Answers

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answered 2016-12-28 01:47:59 -0600

Chigur gravatar image

I confirm, same problem after upgrade F24 to F25

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answered 2017-01-03 10:58:04 -0600

pwrob gravatar image

updated 2017-01-03 10:58:46 -0600

Thank you @leigh123linux for the suggestion. The maintainer has indeed been aware of the problem, but is lacking time to fix.

More info gleaned from reading various posts indicates that the problems are isolated to the "blank" screensaver.

While not an answer per se, there is a mitigation stragegy: choosing a different screensaver theme (e.g. Floating MATE) fixes:

  • lag between manually engaging screensaver and screensaver kicking in

  • screensaver not obscuring desktop / not engaging on additional monitors

HTH, Pwrob

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Asked: 2016-12-19 11:20:08 -0600

Seen: 1,164 times

Last updated: Jan 03 '17