How to Fix the Linux Mint & VirtualBox Video Hardware Acceleration Problem
Running in software rendering mode
Cinnamon is currently running without video hardware acceleration and, as a result, you may observe much higher than normal CPU usage.
There could be a problem with your drivers or some other issue. For the best experience, it is recommended that you only use this mode for troubleshooting purposes.
Then you are on the right page, because here I will show you in a few simple steps how to fix this problem. Updated! This page contains now 2 solutions.
It's really easy and you don't need any knowledge of the Linux terminal, drivers or something similar.
Fix the Linux Mint & VirtualBox Video Hardware Acceleration Problem - 2 Solutions
1. Enable 3D Acceleration
1 If Linux Mint is running, then you first need to shut it down (properly).
2 In Oracle VM VirtualBox Manager, you need to right-click on your Linux Mint Virtual Machine and choose "Settings".
3 Click on "Display" (left side).
4 Check (select) "Enable 3D Acceleration".
5 Click on "OK" (bottom).
6 Restart Linux Mint and hopefully you won't see the error message again. If the error warning still appears, then try the next solution to solve your problem.
2. Install Guest Additions
1 Start Linux Mint in VirtualBox.
2 Click on "Devices" (located in the top menu) and choose "Insert Guest Additions CD image" from the drop-down menu.
A window will open with the following message: "This medium contains software intended to be automatically started. Would you like to run it?".
3 Click on "Run".
4 Enter your password and click on "Authenticate" (if needed).
Terminal window will open. When the command is finished it will ask you "Do you wish to continue anyway? [yes or no]".
5 Enter "yes" and hit Enter (keyboard key).
Wait until the command is finished. When the command is finished it will show the following text "You may need to restart the system (or just restart the guest system) to enable the Guest Additions. Press Return to close this window".
6 Enter "exit" and hit Enter (keyboard key) to close the terminal window.
7 Restart Linux Mint and hopefully you won't see the error message again.
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