Bug 613552 – kde-plasma/kscreenlocker-5.8.6 Impossible to enter password with second monitor connected

• Status: RESOLVED FIXED
• Product: Gentoo Linux

[Description Dmitry 2017-03-22 16:05:48 UTC]

KDE Plasma lockscreen stops to respond keyboard input, when second monitor with screen mirroring enabled. Keys like caps_lock etc work, but I can't enter password in password field. Only way to enter password and unlock screen is unplug second monitor. Tested with Nvidia official driver.

Also, when screen mirroring is disabled you also can't enter password in lockscreen on your second monitor with same reason. Only main monitor receive keys input.

Steps to reproduce:
1. Start KDE Plasma
2. Connect second monitor (in my case it is DVI main monitor plus HDMI second monitor)
3. Configure screen mirroring between two monitors
4. Lock screen (press ctrl+alt+l)
5. When trying to enter password you will notice, that you can't enter your password to unlock screen.
6. Unplug second monitor to be able to enter password and unlock your screen.

kde-plasma/kscreenlocker-5.8.5 was affected too.

[Comment 1 Andreas Sturmlechner 2017-03-22 23:41:41 UTC]

Please report this issue upstream.

[Comment 2 Dmitry 2017-03-26 09:17:15 UTC]

Created attachment 468342 [details, diff]
Patch to fix multimonitor bug

Bug is already fixed upstream: https://bugs.kde.org/show_bug.cgi?id=374289
Here is a patch. Tested, it works. Password is now can be entered on any connected screen.

[Comment 3 Andreas Sturmlechner 2017-03-29 12:13:36 UTC]

Thanks, fixed in 5.8.6-r1 (commit 744572dc1a7741091e971105723adc4422278a54).