Do you know why Ubuntu runs slow in VirtualBox? The main reason is that the default graphics driver installed in VirtualBox doesn’t support 3D acceleration. To speed up Ubuntu in VirtualBox, you need to install guest additions which contains a more capable graphics driver that supports 3D acceleration. How to Check if 3D Acceleration is supportedStart up your Ubuntu virtual machine. Then in a terminal window, type the following command: /usr/lib/nux/unitysupporttest -pThis is the output on a newly installed VirtualBox machine.Take a look at the last line which tells us that Unity 3D is not supported. We need to fix that.

1. Ubuntu No Sound Output Device
2. Ubuntu 16.04 No Sound From Speakers

Speed up Ubuntu 17.04 in VirtualBox by Installing VirtualBox Guest AdditionsVirtualBox guest additions allows you to set up shared folders, enable bidirectional shared clipboard between host and guest, and power up the graphics ability of your guest machine. It’s a set of device drivers (graphics and mouse drivers) and system applications that is going to be installed in the guest OS.To install guest additions, first we need to install some tools for compiling kernel modules. In the Ubuntu virtual machine, run the following command to update existing software. Sudo apt update && sudo apt dist-upgradePlease note that if a new kernel is installed, you need to reboot Ubuntu. Then install required packages for building kernel modules. Sudo apt install build-essential module-assistant dkmsNext, prepare your system to build kernel module.

Ubuntu No Sound Output Device

Sudo m-a prepareOutput:In VirtualBox menu bar, select Devices Insert Guest Additions CD image.You might be asked to download the guest additions CD image if it cannot be found on your hard drive. Click Download. Once the download is complete, click Insert button to insert the CD image into the virtual optical drive.If the guest additions CD image had already been downloaded before, then you will be asked to run the software contained in it, click Run button.Then enter your password and it will begin compiling the VirtualBox guest additions kernel modules. You may be notified that your system already have a version of the VirtualBox Guest Additions, but built-in version is of low quality. So enter yes to continue.Once the guest additions is installed, press Enter to close the terminal window and shut down your Ubuntu virtual machine. (Don’t reboot it now.)Go to your VirtualBox settings. Click Display on the left pane.

The Unity Desktop isn't as customizable as many other Linux desktop environments, but you can do basic things such as changing the wallpaper and choosing whether the menus appear as part of the application or in the top panel. We've put together a guide that tells you everything you need to know about customizing the Ubuntu desktop. Now that I’ve set the USB audio device as the default audio output for the Raspberry Pi, it’s time to test it to ensure it is working. Connect a set of speakers to the USB audio device and then start playing audio through them. Raspian includes a number of test sound clips I can use to check that everything is working properly.

In the Screen tab, allocate 128M video memory to Ubuntu VM and make sure Enable 3D Acceleration is checked. Save you settings.Start Ubuntu virtual machine. It should be running much faster now because Unity 3D is supported with the new graphics driver. Run the following command in a terminal window. /usr/lib/nux/unitysupporttest -pYou will see that Unity 3D is supported.Other Tips to Speed up Ubuntu in VirtualBoxYou can also check out, which also goes for Ubuntu virtual machine.That’s it! Ivt bluesoleil 6.2.227.11.

I hope this tutorial helped you make Ubuntu faster in VirtualBox. As always, if you found this post useful, then or follow us on,.

Ubuntu 16.04 No Sound From Speakers

Updated: One of the common issues facing Ubuntu users after installing or upgrading Ubuntu is the no sound problem, there are many reason for this issue, sometime is related to a volume setting configuration, misconfiguration or can be that you have a new hardware that is not supported. In this post will try to list some solutions to no-sound issue on Ubuntu.The following solution should work on Ubuntu 14.04, 13.10, 13.04 Raring Ringtail, 12.10 and any older release of Ubuntu. Check the volumeFirst thing you need to check is the volume settings, Go to top menu and click sound settings (see screenshot bellow):Check output volume if muted or not, if not muted then go further with the steps bellow, if is muted then is your problem should be resolved just you have to uncheck mu te.2. Check Alsa MixerPulseAudio controls underlying ALSA-level volume controls. To change the ALSA-level volume controls directly, you can do the following:Open a terminal. (The quickest way is the Ctrl-Alt-T shortcut). Enter “alsamixer” and press the Enter key.You will now see a user interface like below.In this user interface, you can do the following:.

Select your correct sound card using F6 and select F5 to see recording controls as well. Move around with left and right arrow keys. Increase and decrease volume with up and down arrow keys. Mute/Unmute with the “M” key. An “MM” means muted, and “OO” means unmuted. Exit from alsamixer with the Esc key.A caveat here: When you mute or unmute something, pulseaudio might pick it up and mute and unmute other controls, as well as PulseAudio’s main mute.

Reinstall Alsa and Pulse AudioTry to reinstall pulse audio and Alsa, open terminal and enter the following commands:Purge Alsa and Pulse audio using the command: sudo apt-get remove -purge alsa-base pulseaudioNow install again Alsa and Pulse Audio: sudo apt-get install alsa-base pulseaudioThen, reload Alsa: sudo alsa force-reloadDone. Check now the sound if it is working, if not, try step 4.

Install Ubuntu Audio Development Team DriverNote: This PPA is not updated to 14.04 yet.Upgrading your sound drivers may fix the nosound issue, you will need to make sure to uninstall the previous override before trying a new one.Open terminal and enter the following PPA: sudo add-apt-repository ppa:ubuntu-audio-dev sudo apt-get update sudo apt-get dist-upgradeAll done.