How to use mouse pad in KDE NEON like in Windows PC? - linux

I am pretty much new to Linux OS. And currently I am using KDE NEON... And it works absolutely fine, better than windows..
I have a laptop of HP with 1TB Hard Disk and 4GB RAM with Intel i3 x64 based processor.
But,
Can I know as in Windows we have a feature of a mouse pad where we can operate our Laptop without pressing pad buttons. The Pad area works as they were buttons..
So, is it possible to use this feature in Linux PC?
If it is please tell how?

Related

HoloLens 2 Emulator visual updates extremely slow

I installed the latest version of the HoloLens 2 Emulator (10.0.20348.1501) on my Windows 10 Pro machine. I have 32GB of RAM, 11th Gen Intel 8 Core CPU, Nvidia 3080 (mobile) graphics card.
Initially I thought that the HoloLens emulator was super slow (an input such as trying to move the pointer can take 10, 20, 30 seconds to show up and sometimes doesn't even show up).
But upon testing some more, I've realized that my inputs are going through immediately (as I can tell from the sound feedback), it's just the visual feedback which is not updating. This testing is just inside the OS (without trying to launch an app I developed).
Any ideas what could be going on? In the performance monitoring tool, everything looks fine.
In the end, the only way to fix it, was to disable graphics switching in the BIOS, and set to Discrete only - despite the fact that the Nvidia GPU Activity shows that the GPU turns on when I launch the emulator.
If the emulator takes 10 seconds to update the graphic, there should be configurations issues. Based on my test, though I cannot say it works fluently in my PC, the HoloLens 2 emulator runs at around 15 fps. There is delay but should be work fine for testing. (I am running it with Nvidia 1080 (mobile), with a much older CPU than yours.)
Please check the document on Using the HoloLens Emulator - Mixed Reality | Microsoft Docs and make sure you have configured your computer properly.
In BIOS
Intel VT -> enabled
Intel VT-d -> disabled
Hardware-based Data Execution Prevention (DEP) (or any Intel data protection related feature, display name could be varied) -> disabled
In Windows
After BIOS configuration is done, completely shut down your PC, then boot. (Directly reboot may not apply changes).
Run dxdiag to check:
DirectX 11.0 or later (12.0 in my PC)
WDDM 2.5 graphics driver or later (3.0 in my PC)
Hyper-V Checking
Enable it if it is not. Reboot is required.
If it is already enabled. Disable it -> reboot the PC -> enable it again -> reboot
Others
For the laptop, make sure the power supply is plug-in and it is not in power-save mode. Check the GPU payload (around 36% in Nvidia 1080 mobile)
Then you may run the emulator again to see if this issue still exists.

emulator in android studio avd extremely slow in Pop! _os

I recently installed the Linux Pop! _OS 20.04 LTS distribution to develop in flutter. Everything works very well, except the AVD emulator, which is extremely slow. What could it be?
I have a 16gb dell of ram, i5 8th generation and 256 of ssd.
im on POP OS 21.10 (Intel® Pentium(R) Gold G5420 CPU # 3.80GHz × 4, 8 single channel ram ), first i need to applied this following instruction https://developer.android.com/studio/run/emulator-acceleration?utm_source=android-studio#vm-linux , for my use case(flutter) i increased the ram to 3gb and VM heap to 512mb , chose Hardware GLES 2.0 on graphics option, then it runs smoothly, if u are using genymotion u can increase the VRAM on virtual box.enter image description here
In case anyone else runs into this, I had to change quick boot to cold boot, as mentioned in this redit post. No idea why quick boot doesn't work, and my system was not spiking in any way but the whole OS was completely unusable until I killed the emulator. I'm on Pop! OS 22.04.

Linux + Windows booting options

What I've done in the past is simply Dual boot, but I would like to not have to reboot my computer in order to switch OS's. Specifically, what I'd like is:
Computer would mainly run Linux,
When I want to play a Windows only game I can switch over to Windows, for that period of time then return to Linux.
Both Linux and Windows need to run up to native in speed.
I'm looking for suggestions in setting this up.
I've looked into Xen, however, I hear that Xen doesn't support 3D graphics? is this accurate. I've also looked into WineD3D and VMGL. However, Wine won't play every game, so I'd still need the Windows VM, and VMGL doesn't seem to work universally either.
I'm running two different machines that I plan to put this setup on:
Laptop:
Intel i7 4720HQ
16GB Ram
NVIDIA GeForce GTX 965M
Desktop:
AMD FX-8350
16GB Ram
EVGA GeForce GTX 960
I just joined and the "Tour" said, don't ask questions that could lead to a discussion than an answer. Anyway, If gaming is your primary goal, have windows as primary boot & dive into linux as VM. Otherwise you need to find a hyper-visor that provides 3D services or pass-through to your actual GPU.
There is a discussion here

How can we use Linux from a small storage pen drive? Does it work on micro-controllers also?

I generally hear that LINUX OS can be downloaded on flash, pen drive (floppy disk?) etc. How we can do that?
I have RHEL 5.4 source code - so how can download it into pen drive and how much space is required?
What other functionality I can add apart from the OS - so that when I boot from that storage device I can make use of them?
Can we download Linux OS into micro-controllers also?
I generally hear that LINUX OS can be downloaded on flash, pen drive (floppy disk?) etc. How > we can do that?
If you can't get it to work on your own, you can buy a ready made Linux on a USB drive from
a site like http://www.osdisc.com or http://www.cheapbytes.com
Not all PCs, especially older PCs, can boot from the USB Drive. Even some newer PCs are beginning to ship with security features that can interfere with booting code. When it does work, you have to find out the proper way to boot the USB drive. You might have only a few seconds during reboot to enter the right key, or it will boot Windows (if Windows is installed). The key to get to the BIOS Boot Menu might be delete or escape or F10 or some other key (varies with PC motherboard manufacturer). A message on the screen that flashes by rather quickly might mention keys you can press. Boot to a specific device or changing boot order can also often be found in the BIOS setup.
There is a linux utility called unetbootin that will create a USB drive that will boot linux. It does not create a USB boot drive from a source code distribution, but rather from an ISO file representing a live CD or the live CD itself.
Since large USB drives (e.g. 32GB) are relatively inexpensive, if you want to compare systems or have multiple systems there is a way to have multiple linux and other operating systems on one USB drive and be able to choose which to boot into. See, for instance, http://www.pendrivelinux.com/ which has a wide variety of procedures for making a bootable USB using either windows or Linux to set up the USB and booting a variety of systems.
I have RHEL 5.4 source code - so how can download it into pen drive
and how much space is required?
RHEL 5.4 is a bit old. You need the Live CD, if there was one.
The ISO file can take up 600+MB. You want space left over to use the system. 2GB for the pen drive is OK. Sometimes you can get by with less.
What other functionality I can add apart from the OS - so that when I
boot from that storage device I can make use of them?
Upon boot the operating system will often recognize sound cards, other usb devices, the hard drives, etc. You need to know how to use these things within Linux, and how to enable them if they are not configured. Some Linux distributions have a place to put packages that are to be autoinstalled when a USB pen drive based system initializes. In this way you can "install" software from the distribution archives that are not included on the standard live system, even if you don't have internet access.
Can we download Linux OS into micro-controllers also?
People run it on raspberry pi and such, but the versions of Linux on non-PC hardware that has low memory are often quite tiny compared to a desktop version. They can be tiny enough to be challenging to work with or expand.

VMware and Linux screen adjustment

I have installed Linux-Mint on my VMware Workstation8 but I don't know how to make its screen fit inside the VMware client screen even when I resize the VMware windows.
As far as I know, VMware doesn't support scaling in that fashion. You should try VirtualBox, as it has an option to Scale-To-Window.
Take a look at http://kb.vmware.com/selfservice/microsites/search.do?language=en_US&cmd=displayKC&externalId=1003
That's for windows but it's the same issue for linux. Basically you need to play with vmx file.

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