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+
+GTK display and mouse input area scaling fails when using vfio-pci device
+
+Version qemu 3.0.0-1 running on Arch. Found on Windows 8.1 and Windows 10 VM's when using Intel gvt-g device. 
+
+While in fullscreen the GTK display is scaled larger than the x11 screen or virtual machine resolution. Without choosing zoom-to-fit portions of the VM display are not shown on x11 screen regardless of the VM resolution. When zoom-to-fit is done the mouse that's shown on screen and actual input are off sync. The mouse can wander off screen when going left and down.
+
+This message is shown when changing from gxl-vga to vfio-pci in view menu. 
+(qemu-system-x86_64:6472): Gtk-WARNING **: 09:50:06.663: drawing failure for widget 'GtkDrawingArea': NULL pointer
+(qemu-system-x86_64:6472): Gtk-WARNING **: 09:50:06.664: drawing failure for widget 'GtkNotebook': NULL pointer
+(qemu-system-x86_64:6472): Gtk-WARNING **: 09:50:06.664: drawing failure for widget 'GtkBox': NULL pointer
+(qemu-system-x86_64:6472): Gtk-WARNING **: 09:50:06.664: drawing failure for widget 'GtkWindow': NULL pointer
+
+Hi, I have a hack for this issue.
+
+In general, the gvt-g is buggy in that the kernel driver i915 failed to provide the actual resolution for the vgpu and always report the largest available one.
+
+The following patch modified the gtk-egl implementation for DMA Buf mode, to convert mouse movement/tablet position to the scaled window coordinates.
+
+See https://pastebin.com/96iBLdDx
+
+Hi there,
+
+Would anyone be so kind to review my patch?
+
+Thanks.
+
+
+https://lists.nongnu.org/archive/html/qemu-devel/2018-10/msg06806.html
+
+Chen, have you seen the following bug report? https://bugs.launchpad.net/qemu/+bug/1592351
+See my comment there, with recent git build of 3.1.0 I don't have a pointer offset issue.
+
+Perhaps this is due to this issue https://github.com/intel/gvt-linux/issues/71 
+
+https://yadi.sk/i/Ejg_6JJEBIc-Zw
+
+The QEMU project is currently considering to move its bug tracking to
+another system. For this we need to know which bugs are still valid
+and which could be closed already. Thus we are setting older bugs to
+"Incomplete" now.
+
+If you still think this bug report here is valid, then please switch
+the state back to "New" within the next 60 days, otherwise this report
+will be marked as "Expired". Or please mark it as "Fix Released" if
+the problem has been solved with a newer version of QEMU already.
+
+Thank you and sorry for the inconvenience.
+
+
+[Expired for QEMU because there has been no activity for 60 days.]
+