Hi,
Trying mint for first time. Have used Ubuntu previously. I am a bit new to linux world. The background, problem and the steps I have tried for rectifying the same are as following..
If you are running Linux Mint (Cinnamon) in Oracle VM VirtualBox and get the following error message; 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.
1. Running VirtualBox 4.3.12 r93733 on Windows 7 SP 1 host
2. Allocated resources for VM => HDD : 10 GB, Mem : 1536 MB, CPU : 2 with 100% execution cap, PAE/NX : Enabled, Acceleration : VT-x/AMD-v and Nested Paging enabled, Video Mem : 128 MB, 3D video acceleration : enabled
3. After installation there were some updates available, installed them also. (If i remember correctly then before updates I was not getting the message for software rendering mode, but I am not sure)
4. Tried installing VBox guest additions from Device => Insert Guest Additions CD Image, but no luck
Edit : 5. Also tried 'apt install virtualbox-guest-dkms virtualbox-guest-utils virtualbox-guest-x11' but issue was still present.
6. Cleaned all VBox package with 'sudo apt-get purge virtualbox*' and reinstalled with 'sudo bash ./VBoxLinuxAdditions.run' from cd image. Still no improvements.
Following are the outputs from recommended info commands..
Command => Output =>
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Command => Output =>
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I think the issue is' drivers: ati,vboxvideo (unloaded: fbdev,vesa) ' from inxi command
and
'vboxguest: module verification failed: signature and/or required key missing - tainting kernel' from dmesg command.
Please help me to resolve this issue.
Regards,
Dumb Coder
Edit :
Some more checks
in /var/log/Xorg.0.log
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Update:
The issue only comes when using Cinnamon with VBox guest additions. I have installed it in VMWare player and cinnamon is working fine with VMWare tools and 3D accelerations.
If you are running Linux Mint (Cinnamon) in Oracle VM VirtualBox and get the following error message;
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 this tutorial will show you in a few simple steps how to fix this problem.
The solutions are really easy and you don't need to have any knowledge of the Linux terminal, drivers or something similar.
Fix the Linux Mint and VirtualBox video hardware acceleration problem (2 solutions)
1. Enable 3D acceleration
Twitch Software Rendering Mode
1. If the Linux Mint virtual machine is running, then you will need to shut it down.
2. In Oracle VM VirtualBox Manager, you right-click on your Linux Mint Virtual Machine and choose Settings.
3. Click on Display at the left.
4. Check (select) Enable 3D Acceleration.
5. Click on OK.
6. Start the Linux Mint VM.
If the problem is not solved, then try the next solution to solve your problem.
2. Install guest additions
1. Start the Linux Mint virtual machine in VirtualBox.
2. In the top menu of the Virtual Machine window, you click on Devices and choose Insert Guest Additions CD image.
3. When you get the following message; “This medium contains software intended to be automatically started. Would you like to run it?”, you click on Run.
4. Enter your password and click on Authenticate (if needed).
A Terminal window will appear and run a command.
5. When the command is finished it will ask you “Do you wish to continue anyway? [yes or no]”. Enter yes and press Enter.
When the command is finished, you will get the following message; “You may need to restart the system (or restart the guest system) to enable the Guest Additions. Press Return to close this window”.
6. Enter exit and press Enter to close the terminal window.
7. Restart the Linux Mint virtual machine.
Linux Mint 17 Virtualbox Software Rendering Mode
Reference: