virtualbox.org

version 5.10
host win7
guest winXP

when I set manually resolution to 1366*768 in VB menu, it is do nothing; screen still in low (not fullscreen) resolution:

[img]s8.hostingkartinok.%20com/uploads/thumbs/2015/11/9e610db1fd25d4f1572873ab1206245a.png[/img]

hostingkartinok. com/show-image.php?id=9e610db1fd25d4f1572873ab1206245a

going to fullscreen mode (Right ctrl+F) also, have no changes - screen in low resolution.
I can change resolution to low flex (like on image) and to very low (800*600 for example), but not to fullscreen.

When I connect my laptop to big 4:3 monitor, then VB works fine - it set correct 1280*1024 resolution.

What I have to do to restore ability to change resolution to 1366*768 ?

You should install the Guest Additions in the guest to get matching host screen resolutions.

Of course Guest Additions in the guest windows XP already installed.
I write about problem with already installed Guest Additions.

If you want accurate responses then provide a VM log file when asking questions such as these: With the VM fully shut down, right click it in GUI. Select "Show Log" and save "VBox.log" (ONLY) to a zip file. Attach the zip here.

file:


I started VM, then tried to change mode thru menu (line 1032 "00:00:07.683225 VMMDev: SetVideoModeHint: Got a video mode hint (1366x681x32)@(0x0),(1;0) at 0)")
Then I stopped VM.

But after this row 1032 i didnt see any error or another interesting information.

second trying: changing mode to fullscreen using Right Ctrl+F
line 1053

VBox.log wrote: VirtualBox VM 5.0.10 r104061 win.amd64 (Nov 10 2015 16:56:18) release log
...
00:00:03.012327 Installed Extension Packs:
00:00:03.012367 Oracle VM VirtualBox Extension Pack (Version: 4.3.18 r96516; VRDE Module: VBoxVRDP unusable because of 'Failed to load the main module ('C:\Program Files\Oracle\VirtualBox/ExtensionPacks/Oracle_VM_VirtualBox_Extension_Pack/win.amd64/VBoxPuelMain.DLL'): VERR_SYMBOL_NOT_FOUND - GetLastError=127')

Invalid extension pack installed on the host. You should fix that.

VBox.log wrote: 00:00:03.190249 File system of 'C:\Users\lalala\Downloads\Oracle_VM_VirtualBox_Extension_Pack-5.0.10-104061.vbox-extpack (2).iso' (DVD) is ntfs

Why on earth (and how?) do you have the extension pack on an ISO? The extension pack is a plugin for the host VirtualBox software and hence is installed on the HOST. This is utterly useless to the guest. And besides, you don't even have it installed in the guest: naturally it is impossible to install an app plugin when the app doesn't exist, so all you've done is mount the ISO.

In the guest you should install the Guest Additions (the clue is in the name a bit there). Then you should be able to change resolutions. Do this by booting the guest and selecting "Device|Insert Guest Additions CD", then run the installer if it doesn't launch by itself.


So in fact Scottgus's answer was correct. You have of course not already installed the Guest Additions.

Invalid extension pack installed on the host. You should fix that.

ok, fixed.

You have of course not already installed the Guest Additions

As I already wrote, Guest Additions already installed.
see screenshot in guest: http://hkar.ru/F0AR

So, after fixing with extension pack, problem still exists.
new log attached here:

for understanding,
i had VB version 4, and for the first time (one month) all was ok, it worked in fullscreen mode correct.
But then (I dont know reason) i get this problem.
May be, the problem appeared after I connect my widescreen notebook (1366*768) to standard 4:3 (1280*1024) monitor.
Last week I upgrade VB to version 5 (thats why Extension Pack`s version doesnt correspond to VM version).
I hoped that problem already resolved in 5 version, but not.

Well, here's my problem with what you say: I see nothing in your log which confirms that the GAs are installed and running. I concede that you may have at least started an installation.

For comparison, here is what a 5.0.10 log says for my own XP guest :-

mpack's vbox.log wrote: 00:00:11.466102 VMMDev: Guest Log: VBoxGuest: Windows version 5.1, build 2600
00:00:11.469530 VMMDev: Guest Additions information report: Version 5.0.0 r101573 '5.0.0'
00:00:11.469585 VMMDev: Guest Additions information report: Interface = 0x00010004 osType = 0x00033000 (Windows XP, 32-bit)

This log entry confirms that the GAs are installed, running, and also tells you the GAs version. I see nothing like this line in your log.

More evidence: if the GAs are installed and running then should see an icon in your XP guest's notification area. If you hover the mouse over this icon then it should report the GAs version. If you pop up the guest Task List you should see the GAs processes in the list. In particular the main VBoxService.exe process, and the VBoxTray.exe taskbar applet.

before your last post, I already find workaround - change this:


max resolution to 1366*768, and then all OK.

after your last post, I return xml max_resolution to wrong value, then delete Guest Additions and install it again.
And it also helps.

So, now all ok, thanks a lot!