Mint LMDE (Debian Jessie) 64 bit with KDE
If you open the window for the first time, it is better first select a library view, instead of moving the window or resizing it
If you do that, the picture is very unstable (jumps, flickers).
Then you can resize the window without flickering. during the operation, the entire window is white.
Resizing only works well in one direction (long or short side of the window).
Resizing the window on the corners, it jumps across the screen flickers heavily.
Moving the window works well with any speed
GtkPerf 0.40 - Starting testing: Mon Mar 31 00:53:35 2014
GtkEntry - time: 0,02
GtkComboBox - time: 0,65
GtkComboBoxEntry - time: 0,64
GtkSpinButton - time: 0,04
GtkProgressBar - time: 0,01
GtkToggleButton - time: 0,04
GtkCheckButton - time: 0,03
GtkRadioButton - time: 0,05
GtkTextView - Add text - time: 0,15
GtkTextView - Scroll - time: 0,05
GtkDrawingArea - Lines - time: 0,37
GtkDrawingArea - Circles - time: 0,37
GtkDrawingArea - Text - time: 0,14
GtkDrawingArea - Pixbufs - time: 0,07
---
Total time: 2,63
hans@enp2so ~ $ glxinfo | grep rendering
direct rendering: Yes
GL_NV_parameter_buffer_object2, GL_NV_path_rendering,
GL_NV_parameter_buffer_object2, GL_NV_path_rendering,
hans@enp2so ~ $ lspci -v
01:00.0 VGA compatible controller: NVIDIA Corporation GF108 [GeForce GT 440] (rev a1) (prog-if 00 [VGA controller])
Subsystem: eVga.com. Corp. Device 1441
Flags: bus master, fast devsel, latency 0, IRQ 24
Memory at fd000000 (32-bit, non-prefetchable) [size=16M]
Memory at d0000000 (64-bit, prefetchable) [size=128M]
Memory at d8000000 (64-bit, prefetchable) [size=32M]
I/O ports at e000 [size=128]
[virtual] Expansion ROM at fe000000 [disabled] [size=512K]
Capabilities: [60] Power Management version 3
Capabilities: [68] MSI: Enable- Count=1/1 Maskable- 64bit+
Capabilities: [78] Express Endpoint, MSI 00
Capabilities: [b4] Vendor Specific Information: Len=14 <?>
Capabilities: [100] Virtual Channel
Capabilities: [128] Power Budgeting <?>
Capabilities: [600] Vendor Specific Information: ID=0001 Rev=1 Len=024 <?>
Kernel driver in use: nvidia