genymotion stays on black screen when loading emulator - crash

When i start a new virtual device with genymotion sometimes it will get stuck on the black screen and not load. Sometimes it will work especially just after a restart, otherwise it will hang on the black screen and become unusable.

If the emulator freezes or crashes this is likely due to incompatability with your video card driver.
If however it just hangs on the black screen, this can be due to two reasons:
Your Firewall or other program is blocking genymotion
If this is likely the case then try disconnecting any vpn services or other software which could be hindering this, and ensuring that genymotion is able to connect to the virtual device over the local network.
If you have a firewall, make sure that you allowed connections to the Genymotion network, set to 192.168.56.0/24 by default.
Your network adaptor is misconfigured
If this is the case you should try the following
Run VirtualBox.
Open File > Preferences > Network (or VirtualBox > Preferences for Mac OS X).
Edit the Host-only Network by clicking .
Check that the adapter IPv4 address is in the same network (192.168.56.0/24 by default) as the DHCP server address, lower address bound and upper address bound. If not, your virtual device cannot start.
You can also remove the Host-only Network by clicking . Genymotion will automatically recreate it at the next virtual device start.

I had this problem in Windows 10 after I updated to VirtualBox 6.0.4 and Genymotion 3.0.1. I am using 2nd generation core i5 cpu (i5 2400). Update to this graphics card is not available. According to the official documentation:
Your graphics card no longer matches Genymotion requirements. Please see https://www.genymotion.com/help/desktop/faq/#supported-graphics-cards.
If you are using a dual graphics card laptop (e.g. Intel/Nvidia or Intel/AMD), make sure you are using the most recent/powerful one.
https://www.genymotion.com/help/desktop/faq/#virtual-device-window-empty
Only solution to my problem was keep the VirtualBox 6.0.4 but downgrade genymotion to 2.12.2 version because my graphics cards is no longer supported and only supported intel graphics card is intel hd graphics 4000 generation. Link to Genymotion 2.12.2 is below:
https://dl.genymotion.com/releases/genymotion-2.12.2/genymotion-2.12.2.exe

Following the below steps solved the issue for me.
Open Windows Settings > Network & Internet > Change adapter options
Right-click on VirtualBox Host-Only Ethernet Adapter
Select Disable
Right-click on the VirtualBox Host-Only Ethernet Adapter again and Select Enable

Press power button doesn't start until then they will stuck on android logo screen then restart

I had the same problem in Windows. updating the video card driver solved the issue.
Genymotion 3.0.1
VirtualBox 6.0.4

I solved the issue in 2 steps:
Check the Android API versions installed on your system from \SDK\platforms directory.
Create New AVD using available Android versions only.

You need to check 4 different things:
proxy connections to be off( Gennymotion/setting/Network)
SDK be set( Gennymotion/ABD/SDK)
Graphic card driver be successfully installed
Virtual box installed and working correctly
Try again please. hope you will fix it easily.

Related

Can't Enable Integrated Webcam in Virtual Machine

I used to work on my Virtual Box normally until it started giving me critical errors, so i backed up my machine and reinstalled virtualbox and loaded my backed up machine. Now i am working on a project that needs the use of the Webcam, so i use my PC's built in webcam usually. I used to enable it from the VM settings. However, now it the webcam seetings doesn't show in the devices. The photos below show the problem i am facing.
The image below shows that the webcam option is checked in the devices.
However, when i enter to enable my camera from the devices, i don't find the webcam options! (image below)
Is it recommended to reinstall my Virtual box again? If a solution couldn't be found?
The VirtualBox Extension Pack is required to allow Webcam passthrough.
Available here -
https://www.virtualbox.org/wiki/Downloads

Qubes OS: No networking?

I am using a Lenovo T420 machine having Cubes OS 3.2 freshly installed. On the upper right corner where the system tray icons reside appears no entry that allows me to connect to my home wifi. I tried to reboot the system several times without change. Right before the install I had an up-to-date Ubuntu installation and networking was no problem at all.
Somewhere on the web I read about weird interference about networking in cubes having wifi enabled or ethernet plugged in during the install. Furthermore I read about Cubes OS having trouble sometimes with Lenovo systems that have to hardware wifi toggle.
As my Lenovo Thinkpad T420 has such hardware toggle this inspired me to do the following:
Having Cubes OS booted without any networking icon in the system tray
Toggle the hardware switch to disable the wifi
Reboot the whole system
Directly after the restart my networking has been recognized by Cubes OS showing up the icon in the system tray. After toggling the hardware wifi switch again to enable it, available wifi networks have been listed and I were able to connect. Since then my networking works fine. Indeed I have not tested out yet if a cable connection would still work out. But it doesn't matter for me for now.

HoloLens device portal not available

When connecting HoloLens via USB to my computer, the device portal is still not available after setting it up as explained in the install tools page.
All I get in the browser 127.0.0.1:10080 is the generic "unable to connect" page.
Is there any way to know what is failing? What could I check? Any tip will be appreciated!
EDIT: browsers used: Edge, Firefox and Chrome.
EDIT2: Hololens development mode is on.
Connecting over USB requires the PC be running IPoverUSB, which is installed with the Windows 10 SDK. You can verify that it's running by checking the Services tab of Task Manager for IpOverUsbSvc.
FYI, another resolution to this issue may be the USB port you are using.
I initially was using a USB 3 port (which I've used to flash my HoloLens many times) and had the same issues.
On a whim, I switched to an older USB2 port and it's working perfectly now. SO try different USB ports if you are having this issue.

Universal Windows 10 Emulator not starting up OS

The Windows phone emulator running Windows 10 has been working since I've installed it and last time I used the emulator was a few days ago. Now for some reason when I load my application emulator does not load the OS.
here's the steps I go throuogh to run the app :
-Run "Mobile Emulator 10.0.10586.0 720p 5 inch 1GB (which is my usual emulator to run)"
Message box saying "Configuring Windows Phone for debugging ... "
Another message box appears saying "Click "Retry" to run the emulator in elevated mode. :
You do not have permission to modify internal Hyper-V network adapter settings, which are required to run the emulator
Click retry on the message box
"Are you sure you want to run Windows Phone Packages?" Click Yes
Configuring Windows Phone for debugging box still running
Phone emulator runs but stuck on "OS is starting..."
Message box appears after leaving it running for roughly 15 mins :
"The emulator is unable to connect t the device operation system :
Couldn't set up the UDP port. Some Functionality might be disabled.
will add this to the steps"
I've followed the instructions from forums to go to Hyper-V Manager and delete the virtual switches and virtual machines - which doesn't work. And I also have Hyper-V enabled on windows features.
Any other solutions would be appreciated, Thanks in advance!
UPDATE : so I've left it running just to see if it works eventually, now another message box appears saying :
The emulator is unable to connect to the device operation system : Couldn't set up the UDP port. Some functionality might be disabled.
UPDATE : So I managed to fix it .. a little. It works for the other apps I have as well as newly created universal windows projects. But this specific app doesn't . I notice that this specific one has the "Configuring Windows Phone for debugging" message pop up whereas the other ones don't.
Why not start fresh?
New OS, new install, everything from scratch.
And don't forget to not play with UAC, OS permissions, the firewall, and do not install anything which would install virtual network adapters. Like OpenVPN, USB modems (including an iPhone), etc.
This is a solution, because your problem could be anything.

the windows phone emulator wasn't able to create the virtual machine

I just installed it on my windows 8. It's NOT running on a VM but is running at a macbook with bootcamp.
When I try to emulate my app, I get this first error:
But then I click "Retry" and give the permission, so it runs normally.
But then, when the windows phone window appears, I get a "loading" screen and then this error appears:
Just for better tagging the post I will write the error: "something happened while creating a switch: Xde couldn't find an IPv4 adress for the host machine"
You must enable virtualization in BIOS and go to Control Panel->Programs->Turn Windows features on or off and choose Hyper-V.
I had this problem.
1- Open the Control Panel.
2- Then programs.
3- Turn Windows features on or off.
4- Further selection for hyper-v.
5- Restart the computer.
6- Repeat the previous steps but put the selection on hyper-v.
7- Restart the computer.
Enjoy ^_^
Not sure if you got to the solution, but I just had the same situation. It turns out that older VPN clients may have compatibility problems with Windows 8. I solved the issue by uninstalling VPN client (and also making sure Hyper-V was enabled).