Black screen/errors after updating to 6.1.34

Discussions about using Linux guests in VirtualBox.
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CactusWren
Posts: 28
Joined: 4. Dec 2021, 18:47

Black screen/errors after updating to 6.1.34

Post by CactusWren »

Any idea why this happened?

Steps to Reproduce
1. Windows Host, Ubuntu Guest, 6.1.32
2. download and execute 6.1.34
3. click through with defaults
4. after reinstallation, black screen Ubuntu (log attached)
5. after several force power-offs and restarts, it seems to be working now (but I'd like to avoid this in the future and know if there's anything I need to do to keep this stable)
Attachments
VB-post-update.zip
(35.92 KiB) Downloaded 5 times
CactusWren
Posts: 28
Joined: 4. Dec 2021, 18:47

Re: Black screen/errors after updating to 6.1.34

Post by CactusWren »

ayayay, now it's not working at all.
multiOS
Volunteer
Posts: 800
Joined: 14. Sep 2019, 16:51
Primary OS: Mac OS X other
VBox Version: PUEL
Guest OSses: WIN11,10, 7, Linux (various)
Location: United Kingdom

Re: Black screen/errors after updating to 6.1.34

Post by multiOS »

The Log has this:

Code: Select all

00:00:03.414345 ********************* End of CFGM dump **********************
00:00:03.414553 HM: HMR3Init: Attempting fall back to NEM: VT-x is not available
00:00:03.464881 NEM:  info: Found optional import WinHvPlatform.dll!WHvQueryGpaRangeDirtyBitmap.
00:00:03.464941 NEM: WHvCapabilityCodeHypervisorPresent is TRUE, so this might work...
which means that Hyper-V is enable on the Windows Host system. This prevents VirtualBox Version 6.1.34 from working effectively.

Your options:

1. Disable Hyper-V see- viewtopic.php?f=25&t=99390 until VirtualBox 6.1.36 is released (see option2 below).
2. Try installing the latest Test Build from https://www.virtualbox.org/wiki/Testbuilds (6.1.x revision 151866 or later) which has been reported as working with Hyper-V enabled. But please read the Dev's advice on installation and keep the downloaded installation files in case it is necessary to uninstall the Test Build..
CactusWren
Posts: 28
Joined: 4. Dec 2021, 18:47

Re: Black screen/errors after updating to 6.1.34

Post by CactusWren »

Thanks, I'll try that. It was working fine in 6.1.32, though.

EDIT:
I finally managed to get the hypervisor disabled and the turtle is finally gone. Everything is working now... I think you were right!

Also, everything is much faster and smoother and less "janky" than before. I didn't realize disabling Hyper-V was such a big deal or I would have taken it more seriously in the first place!
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