Opened 12 years ago
Closed 11 years ago
#11327 closed defect (fixed)
black guest screen after pausing the VM (2 CPUs)
| Reported by: | Mihai Hanor | Owned by: | |
|---|---|---|---|
| Component: | other | Version: | VirtualBox 4.2.6 |
| Keywords: | Cc: | ||
| Guest type: | Windows | Host type: | Windows |
Description
Host: Windows 7 SP1 x64 Home Premium, 8GB RAM, i3 2120 (HT enabled)
Guest: Windows 7 SP1 x64 Home Premium, 1GB RAM, 2 CPUs, all other settings are the default settings, set by the Create Virtual Machine wizard. The VM has Internet connection through the VBox NAT. VT-x and nested paging are supported and enabled.
Steps: After installing the guest OS, set Windows Update not to check automatically for updates. Manually issue a "check for updates", allow the update of the Windows Update service, then start the installation of the selected Windows updates (critical/security updates), paying attention to the update process. After the download of the updates and the pre-install stage, the Windows Update starts to install the individual update packages. When that happens, you can start to issue the Host+P key combination, to pause, then unpause the VM, in a continuous cycle, pressing it at intervals of 1 to 5 seconds. I can reliably reproduce the issue, using these steps. The black screen is displayed while the VM is in running state. When paused, the VM screenshot seems to show the current, correct display state of the VM.
Attachments (1)
Change History (7)
by , 12 years ago
comment:2 by , 12 years ago
I've found an easier way to reproduce it. Just open a text/word editor, inside the guest, and keep pressing a keyboard key (of a visible character). While you're pressing it, using the mouse pointer, press the close button (X) of the VM window to bring up the Close VM window. Release the key and close the "Close VM" window. You should have a black screen. I can seem to reproduce it every time, on my Windows 7 x64 host, using several guests (XP, 7 x86, 7 x64, Ubuntu 12.10 x86), using single CPU guests. VirtualBox 4.2.12. Having Guest Additions installed, or not, doesn't seem to matter.
Also, the guest will continue to register the key as pressed, even if you have released it. This is visible in the guest screenshots, by repeatedly bringing up/closing the "Close VM" window (enable word wrapping for the text editor, to better observe it).
comment:4 by , 12 years ago
Same happened to me today on the latest version 4.2.14r86644 (that was during windows update of the guest, this is the first time I use the "pause" feature... really at the wrong time!). My guest is a 7 x64 with guest addons installed.
comment:5 by , 11 years ago
I can't reproduce the black screen issue with VirtualBox 4.3.2. You can close this ticket.
Actually, I can reproduce the issue without Windows Updates, using a tool called Tom2D (from Tom's Hardware, http://www.tomshardware.de/download/Tom2D,0301-26150.html ), by pausing/resuming the VM while the guest is running Tom2D, doing blitting, stretching or rectangle direct drawing tests.
Also, I meant "black guest screen after resuming the VM", not after pausing the VM
The same thing happens with a Windows XP SP3 32 bit guest (IO APIC enabled, 2 CPUs). As before, 2D&3D are disabled, guest additions are not installed.