VirtualBox

Opened 13 years ago

Closed 13 years ago

#7411 closed defect (fixed)

COM Port not visible in Guest machine. => Fixed in SVN

Reported by: sebbie Owned by:
Component: uart Version: VirtualBox 4.0.6
Keywords: COM Port Cc:
Guest type: Windows Host type: Windows

Description

The configured serial ports (COM Ports) do not function in the guest virtual machine

I configured my guest machine (running Windows XP) to use two serial ports (COM ports). Both COM ports are available on the host (Windows XP). But the COM ports do not run on the guest virtual machine. Why?
1: A look at Device Manager within the guest system shows NO COM Port available.
2: A test within the guest with an utility that requires these ports fail as if these ports were not there at all.
Even if I attach only one instead of two COM Port from the Host device, it still does not work.
What could be the cause of this? I will appreciate a fix of this bug.

Attachments (1)

TPVBSeb317CN-2010-09-01-10-25-06.log (40.9 KB ) - added by sebbie 13 years ago.

Download all attachments as: .zip

Change History (9)

comment:1 by Frank Mehnert, 13 years ago

Component: otheruart

comment:2 by Frank Mehnert, 13 years ago

Summary: COM Port not visible in Guest machine.COM Port not visible in Guest machine. => Fixed in SVN

The reason were the missing entries in the ACPI tables. This will be fixed in the next major release.

comment:3 by Stefano Bordoni, 13 years ago

I have the very same problem with a WinXP VM hosted by v4.0.6 (on a WinXP PC).

in reply to:  3 comment:4 by Stefano Bordoni, 13 years ago

I am trying to use my physical COM3 to VM COM1...

Replying to sbordoni:

I have the very same problem with a WinXP VM hosted by v4.0.6 (on a WinXP PC).

comment:5 by Frank Mehnert, 13 years ago

I already said that this will be fixed in the next major release.

comment:6 by Stefano Bordoni, 13 years ago

Since this problem was reported for v3.2.8, I supposed the v4.x should be the 'next major release'.

Anyway, do you need some logs... to ease the fix?

comment:7 by Frank Mehnert, 13 years ago

Version: VirtualBox 3.2.8VirtualBox 4.0.6

No. The fix is already available in the public subversion repository and the next major release is not VBox 4.0 but the major release after it. The reason that we didn't backport the fix to VBox 4.0.x is that it could make Windows guest systems behave a little bit different (new hardware assistant popping up and so on).

comment:8 by Frank Mehnert, 13 years ago

Resolution: fixed
Status: newclosed

Fixed in 4.1.0.

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