When a KDE application menu is activated, random (though somehow related
in size and position) areas of windows on the desktop become transparent.
This happens intermittently, not on all menu activations.
Screenshot attached.
lspci -v output if it helps:
00:02.0 VGA compatible controller: Intel Corporation 4 Series Chipset Integrated Graphics Controller (rev 03) (prog-if 00 [VGA controller])
Subsystem: Intel Corporation Device 0023
Flags: bus master, fast devsel, latency 0, IRQ 44
Memory at d0000000 (64-bit, non-prefetchable) [size=4M]
Memory at c0000000 (64-bit, prefetchable) [size=256M]
I/O ports at f140 [size=8]
Expansion ROM at <unassigned> [disabled]
Capabilities: [90] MSI: Enable+ Count=1/1 Maskable- 64bit-
Capabilities: [d0] Power Management version 2
Kernel driver in use: i915
00:02.1 Display controller: Intel Corporation 4 Series Chipset Integrated Graphics Controller (rev 03)
Subsystem: Intel Corporation Device 0023
Flags: bus master, fast devsel, latency 0
Memory at d0400000 (64-bit, non-prefetchable) [size=1M]
Capabilities: [d0] Power Management version 2
Regards,