[kde] [Bug 344129] New: Random input freeze using SDDM in kde4 and kde5

[SP]

https://bugs.kde.org/show_bug.cgi?id=344129

            Bug ID: 344129
           Summary: Random input freeze using SDDM in kde4 and kde5
           Product: kde
           Version: unspecified
          Platform: Fedora RPMs
                OS: Linux
            Status: UNCONFIRMED
          Severity: grave
          Priority: NOR
         Component: general
          Assignee: unassigned-bugs at kde.org
          Reporter: scp.stjohn at gmail.com

When using SDDM in either KDE4 or KDE5 there are random input freezes of
keyboard and mouse.  Furthermore the machine cannot be ssh'd to from another
machine in this state or rebooted.  The only solution is to hard reboot.  After
disabling SDDM and enabling KDM the lockups do not recur.  I attempted to use
SDDM in FC20 and the problem first appeared.  Upgrade to FC21 and still the
same problem.  Did a bios upgrade - that did not resolve it.  Installed KDE5
Plasma (very nice) - but that has not resolved the problem.  Cannot find
anything specific in the logs.  Have used different keyboards and mouse to no
avail.
Also noticed on the last crash that Cap Lock was on in SDDM but not on the
keyboard.  Had to ssh to the machine and enable KDM and reboot.

Reproducible: Always

Steps to Reproduce:
1. Use SDDM
2.  Move mouse
3. Random lockup

Actual Results:  
Total freeze of computer.  Fan still running.

Expected Results:  
SDDM should not cause imput lockup

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