[kde] [Bug 363079] New: screen tearing, mostly seen with firefox and eclipse, possible relation with

[via KDE Bugzilla]

https://bugs.kde.org/show_bug.cgi?id=363079

            Bug ID: 363079
           Summary: screen tearing, mostly seen with firefox and eclipse,
                    possible relation with
           Product: kde
           Version: unspecified
          Platform: openSUSE RPMs
                OS: Linux
            Status: UNCONFIRMED
          Severity: major
          Priority: NOR
         Component: general
          Assignee: unassigned-bugs at kde.org
          Reporter: je.joakim at yahoo.se

Lots of window tearing in firefox, eclipse. Not seen when only displaying the
desktop. Smooth scrolling set to off seem to reduce the amount of flickering,
but does not fix the problem entirely. Tried XRender, openGl 3.1, 2.0 with all
vsync settings and tearing is always present, but sometimes there are bursts of
very intense tearing and during this time the computer is unusable. Restarting
seem to temporarily fix it, then it gradually starts over again.

There are no visible error prints or messages.

HW: intel HD graphics, i5-6200U, FHD.
KDE plasma: 5.6.3
KDE frameworks: 5.21.0
Qt: 5.5.1
kernel:4.5.3-1


Reproducible: Always

Steps to Reproduce:
1. startup a intel core-i5 6200U with intel HD graphics laptop
2. launch firefox and/or eclipse
3. normal usage

Actual Results:  
tearing occurs every now and then and sometimes in crescendoes. 


Lots of web posts describes similar symptoms, some with suggested solutions
that doesn't seem to have any effect in this case. During the bursts it is not
possible to use the computer.

Hope this helps
Thanks,
Regards

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