id	summary	reporter	owner	description	type	status	component	version	resolution	keywords	cc	guest	host
13256	VirtualBox Seamless Mode is unusable in Linux Host since  4.3.12r93733 -> duplicate of #13238	Plastic.Jesus		"The synopsis is that I have been running my Windows 7 guests in seamless mode for the last three years with my current hardware with very few issues. As of 4.3.12r93733, I can no longer run in seamless mode for (at least) the following reasons:

  1. The guest never seems to release the keyboard back to the host. I can hit the host key, and all manner of shift combinations to try and get control back to the host to no avail. Even after clicking in a window on the host and seeing that window gain focus with a blinking cursor, keystrokes are still delivered to the last window in the guest.

  2. Periodically during my trying to narrow this down, my entire host has completely frozen. I can't even kick out to a terminal session with Ctrl-Alt-(F2-F7). A hard reboot is necessary.

Note that i have since upgraded to VB 4.3.14, and the symptoms remain unchanged.

Some of my system information is below, and I have attached relevant log files as well as the contents of /proc/cpuinfo and other relevant system files.




I am running a Fedora 20 host (Linux 3.15.7-200.fc20.x86_64 #1 SMP x86_64 GNU/Linux) and a Windows 7 guest.

I am running three monitors on native nVidia drivers.

# cat /proc/driver/nvidia/version
 
NVRM version: NVIDIA UNIX x86_64 Kernel Module  331.89
GCC version:  gcc version 4.8.3 20140624 (Red Hat 4.8.3-1) (GCC)

# cat /proc/driver/nvidia/gpus/0/information 

Model:           GeForce GTX 650
IRQ:             48
GPU UUID:        GPU-6fe203a0-6da2-7b10-d4f9-f30b919a8c32
Video BIOS:      80.07.35.00.52
Bus Type:        PCIe
DMA Size:        40 bits
DMA Mask:        0xffffffffff
Bus Location:    0000:01.00.0
"	defect	closed	GUI/seamless	VirtualBox 4.3.14	duplicate	seamless mode, linux host, keystrokes		Windows	Linux