virtualbox.org

Hello! Upgraded my latest Mac mini to El Capitan and virtualbox 5.0.6 without any problems, used it for couple of days, and suddenly today, my screen resolution in guest Windows 7 became 640x480 16 colors. Had to restart guest win7 after reboot I could use only square 1400x1050 resolution, like I had no guest additions installed. Tried to reinstall guest additions but with no luck. Please help me to return my wide screen 1900x1200 like it was before glitch.

Something had to change on either your Host, i.e. installed new software, changed VB settings etc., or something in your Windows 7 guest changed due to updates or corruption etc. Software doesn't spontaneously stop working unless you have a hardware failure.

attach the vbox.log for the Guest…
With the VM fully shut down, right click it in the VB GUI. Select "Show Log" and save "VBox.log" (ONLY) to a zip file. Attach the zip here.

Only plugged Samsung earphones in my Mac mini, nothing more have changed, will attach log file later.

If you have Elmedia Player installed be sure to uninstall it. It causes numerous problems in OSX 10.11

loukingjr wrote:If you have Elmedia Player installed be sure to uninstall it. It causes numerous problems in OSX 10.11

No i don't have it. All was working alright, but suddenly after switching from os x to win7 win7 screen resolution has changed, and now it's not wide

Does Full Screen (Host+F) work?

now i can see wide screen resolution 1920 x 974 but it's little bit smaller then my previous resolution. I want 1920 x 1200. I didn't do anything just rebooting vm and now i have a new resolution. That's going on. Log is attached.

loukingjr wrote:Does Full Screen (Host+F) work?

yes it works

With the guest open, From the View menu>Virtual Screen 1>Resize to 1920x1200.

oh, i figured out how to get new resolution. I switched to seamless mode and received this wide screen resolution, than switched to full screen mode and than back to seamless mode and now i get to wide screen resolutions, 1920 x 974 and 1920 x 977. What's happened?

see my previous post.

loukingjr wrote:With the guest open, From the View menu>Virtual Screen 1>Resize to 1920x1200.

sorry but i can't find such menu. Then i open view menu i only get different screen modes like full screen and scaled and seamless mode, but no menu with virtual screen

You don't see this?

loukingjr wrote:You don't see this?

I had virtual screen then i used to monitors configuration but now i use one monitor configuration and don't see such menu

restart VirtualBox with one monitor set.