https://bugs.kde.org/show_bug.cgi?id=384250
--- Comment #3 from m1st0 <mistr...@gmail.com> ---
I have the three following symptoms, which I believe are related in some way
but I cannot correlate them yet:
* SDDM Breeze Theme is all over the place on 2 monitors. Can't see the
password text box and alignment of each element is not centered with Kubuntu
17.04. Running modesetting and intel drivers, reported as i915. Resolved for
now with switching to Maldives theme.
* Plasmashell crashes continually, blanking out the background and restarting.
Panel's elements are off area, meaning the only element I see is the clock and
it is oversized for the default panel. Resizing has no useful effect.
Unresolved workarounds tried. Resolved by using LXQT with kwin_X11 for now.
Seems like a Qt issue then?
* This bug reported noting the crash in every Qt based desktop (KDE, LXQT) with
kwin_x11 when mouse wheel scrolling rapidly back and forth in a window. Using
keyboard scrolling or touchpad does not produce the same issue. All I can see
are segfaults such as these in libqquicklayoutplugin.so or libQt5Core.so.5.7.1
. . .
plasmashell[6514]: segfault at 55c4efbdafc0 ip 00007f77c403f450 sp
00007ffef75c85b0 error 4 in libqquicklayoutsplugin.so
Also note my settings:
* /etc/default/grub settings (allows for Intel 530 activation with delayed
Nvidia Optimus use with bbswitch): nogpumanager
modprobe.blacklist=nouveau,nvidiafb,nvidia-modeset,nvidia-uvm,nvidia,nvidia-384
acpi_osi=! acpi_osi=\"Windows 2009\" intel_iommu=igfx_off
* /etc/X11/xorg.conf.d/21-intel.conf (same reasoning, can switch acceleration
methods as needed easily by commenting differences):
Section Device
Identifier "Intel Graphics"
BusID "PCI:0:2:0"
# ----- modesetting driver -----
#Driver "modesetting"
#Option "DRI" "false"
#Option "NoAccel" "True"
#Option "AccelMethod" "glamor"
#Option "DRI" "3"
#Option "PageFlip" "True"
#Option "Backlight" "intel_backlight"
# ----- Intel Drivers -----
Driver "intel"
Option "Accel" "True"
# --- SNA ---
Option "AccelMethod" "sna"
Option "TearFree" "True"
Option "TripleBuffer" "True"
# --- UXA ---
#Option "AccelMethod" "uxa"
#Option "HWRotation" "True"
#Option "HotPlug" "True"
#Option "DRI" "3"
#Option "VSync" "True"
#Option "PageFlip" "True"
#Option "Tiling" "True"
#Option "TripleBuffer" "True"
EndSection
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