VirtualBox

Ticket #12380 (new defect)

Opened 21 months ago

high CPU usage during copy-past operation within guest - caused by 2 monitor display

Reported by: cbruce Owned by:
Priority: major Component: guest additions
Version: VirtualBox 4.2.18 Keywords: monitor count; high CPU activity; multiple pastes
Cc: Guest type: Windows
Host type: Linux

Description

My host system is Oracle Linux Server v6.4, my guest is Windows 7 Enterprise (both 64 bit).

In the Windows 7 system, whenever I do a copy-and-paste operation the system acts erratically. For example, when copying and pasting some cells from an Excel file to a Word file (both in the guest), the CPU shoots up to 100% and stays there unless I move my mouse (hover) over the host window. While the CPU is churning, multiple copies of the clipboard material can get pasted at the destination file. Afterwards, pressing Undo also causes a runaway high CPU process and one or more of the extra copies to be removed.

I noticed that switching the monitor count of the guest from 2 monitors to one monitor fixes the problem. If relevant, my graphics adaptor is NVIDIA G98 [Quadro NVS 295].

Guest log file attached.

Attachments

VBox.log.1 Download (94.8 KB) - added by cbruce 21 months ago.
log file with 2 monitors
VBox.log.2 Download (95.2 KB) - added by cbruce 21 months ago.
log file with one monitor

Change History

Changed 21 months ago by cbruce

log file with 2 monitors

Changed 21 months ago by cbruce

log file with one monitor

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