Moisés Cardona

Hi everyone, In this post, I’ll show you how to change the CPU governor in Linux to the Performance mode. This will allow your machine to run to its full potential as the CPU will be running to its maximum supported clock regardless of the load. Normally, we can choose between these CPU scaling governors: Therefore, if we want to get the maximum performance, we should use the performance governor. Some Linux distributions may also use another governor called schedutil…

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Hi everyone, In this post, we will change our Virtual Machine USB Controller from the default qemu-xhci model to nec-xhci. After attempting to pass a USB Audio Class 2.0 device using the generic Standard QEMU XHCI controller, I was having some sound issues, particularly with constant pops and distortions while bistreaming audio. After checking for solutions, it seems we can use the nec-xhci controller. This is what I did, and it fixed the sound issues I was having. Before doing…

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Hi everyone, In this post, we will see how simple it is to pass our physical machine BIOS information to our QEMU/KVM Windows Virtual Machine. Apparently, this is a way some software checks to see if it is running behind a VM and adding a simple line of configuration will pass our real machine BIOS info to the VM, so the software will read the real info rather than the one from the virtualized BIOS. Here’s an image from CPU-Z…

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Hi everyone, In this post, we’ll see how to disable the Ubuntu splash screen and enable showing the boot log when we start our machines. This is useful because it allow you to watch the system initializing instead of just showing the splash screen. These instructions should work for any system that uses GRUB as its bootloader. I’m using Ubuntu 22.10. To disable the Ubuntu splash screen, we must edit the GRUB configuration file found at /etc/default/grub. I will use…

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