I am using Arch Linux 5.3.13-arch1-1 and libvirt 5.9.0.
After I made a linux update (sudo pacman -Syu), I got the new, libvirt version mentioned above.
But soon after I realized, while programming in Eclipse, that copy paste does not work anymore. After couple of tries, when I try to copy some lines of code, it freezes for a short time, and looses the copied text in the clipboard.
I converted the VMs into vdi and continuing to work with Virtual Box. There, on the same laptop and the same VM, I don't have that issue!
Is this a known issue? I've got other VMs which are optimized for KVM.
Related
WSL2 stopped working suddenly. If I do a new installation of linux distros. Then it throws the following error, when I click launch button for the linux distro from play store:
Installing, this may take a few minutes...
WslRegisterDistribution failed with error: 0x80070003
Error: 0x80070003 The system cannot find the path specified.
the wsl --help command works properly. All other wsl command hangs or throws error as shown below
like wsl -l command throws this error
The system cannot find the path specified.
I had the same thing happening to me after I moved the directory of my distro.
You have to unregister the distro from WSL;
wslconfig /u Ubuntu-20.04
and then just execute the installed exe and install the whole distro to WSL again.
I had to reinstall the windows to fix the issue. Something got corrupted in the OS. However, before reinstalling the OS as I had lot of work stored in the WSL2, I took the backup of the entire WSL2 image, the big .vhdx file. This file is the Virtual Hard Disk of WSL2 Linux. The files inside cannot be directly explored from Windows at the moment.
If one has not moved the file anywhere else, it is stored here: %LOCALAPPDATA%\Packages\<PackageFamilyName>\LocalState\ext4.vhdx
Before reinstalling the OS, after taking the backup, I wanted to test if this backup runs fine on new install of WSL2. For that, I tested it on another machine, by installing the same Ubuntu WSL2 distro and replacing the .vhdx file created with the backup file. It ran fine.
So, it felt safe to do entire OS reinstall and then reinstalling WSL2 Ubuntu and finally replacing the .vhdx file with the old backup .vhdx file. So, I did loose some time. But, my data and all the applications/programs on WSL2 were intact.
I know this is old but I had the same problem after deleting a driver associated with Hyper V and fixed it by uninstalling the virtual machine platform and Windows Hypervisor along with WSL, rebooted, reinstalled all 3 and then I could install Ubuntu again
This is my first answer on stack overflow and English is not my first language.
So, I will answer this question in images. My solution would not delete the date in any existing installed Linux distribution, at least for me.
Hope you can solve this problem successfully.
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"Enable" Virtualization from your bios settings.
Settings may differ from bios to bios (search for your machine options)
2 week old Ubuntu 18.04 install.
As a requirement of running a android device emulator for Android studio, I had to install KVM, so I installed it (the exact package name was kvm, it had some dependencies), and now my computer won't boot. It just sits there with a purple screen.
No keyboard or mouse input has any effect (including REISUB).
I have googled and nothing relevant comes up (it's all about booting VMs, understandably).
I have no idea what to do, especially since I cannot interact directly with my OS.
I still have my boot stick (that I used to install 18.04), and I can boot off that.
Turns out that installing linux-kvm actually doesn't install a VM program, it just installs another kernal that's obsolete, puts it at the top of the grub list, and that's how it breaks your computer.
I fixed it by using boot-repair (https://help.ubuntu.com/community/Boot-Repair).
Ever since I have upgraded my laptop (Click here for hardware specs.) my screen usually freezes. Mostly in chrome or Firefox browser. I am pretty sure this is a Nvidia driver problem but I can't seem to find the solution. I am running a Nvidia Quadro K2100M.
I am currently running Nvidia 361.42. I have tried using open source Xorg server without any luck.
The only solution I have found so far is forcefully turning off the computer by holding down the power button.
Things that I have tried:
I got keyboard input
I cannot switch to another terminal to restart lightdm
This problem came to me occasionally, making me really annoyed.
As illustrated in many blogs, this may be caused by graphic driver problem. For me, my desktop has a NVIDIA video card, you can run lspci | grep VGA to see what type of your video type, in my case, it returned:
02:00.0 VGA compatible controller: NVIDIA Corporation G98 [GeForce 8400 GS Rev. 2] (rev a1)
I followed the instruction on jiakai zhang's blog to reinstall proper drivers for the desktop, hope this will help you.
The key steps in [1] are to reinstall the ubuntu desktop and nvidia drivier by:
$ sudo su
$ apt-get update
$ apt-get install --reinstall ubuntu-desktop
$ apt-get install unity
$ apt-get remove --purge nvidia*
$ reboot
$ sudo apt-get install nvidia-current
$ sudo reboot
Updating the grub settings worked for me! Do the following:
1. Open the GRUB configuration
sudo vi /etc/default/grub
2. Change the value of GRUB_CMDLINE_LINUX_DEFAULT from "quiet splash" to
GRUB_CMDLINE_LINUX_DEFAULT="quiet splash intel_idle.max_cstate=1"
and save the file.
3. Update & Reboot
sudo update-grub
sudo reboot
More info:
This is a bug in the processor, known as the c-state bug. It causes total freezes when the CPU tries to enter an unsupported sleep state. It's a problem for many Bay Trail devices especially with newer (4.*) kernels. There is a simple workaround until it gets properly fixed upstream. You just need to pass a kernel boot parameter and the random freezing stops completely. The parameter may increase battery consumption slightly, but it will give you a usable system. You do this by editing the configuration file for GRUB as described above.
GRUB - boot loader package from the GNU Project, which provides a user the choice to boot one of multiple operating systems
installed on a computer or select a specific kernel configuration available on a particular operating system's partitions;
Intel Bay Trail - new Atom Processors from Intel. Atom is Intel's family of x86 and x86-64 processors that are optimized
for small computing devices, such as smartphones and mobile Internet devices;
C-States - used to optimize optimize or reduce power consumption in idle mode (i. e. when no code is executed) - (C0 to C8)
Reference: here.
I have since fixed this problem by re-installing Ubuntu 16.04 and not switching from the nouveau video driver. I also disable updates and everything been working good for about 2 months now.
Gaming is pretty good but I usually play steam games so doesn't push any kinda hard core graphics
Well, I had the same problem: My PC was freezing randomly. I tried Ubuntu 16, 17 and 18.04 and everything was the same. I tried several drivers and didn't get a solution. I tried several solutions that I found in the forums (including this) and got bad and harmful results.
My solution was: I stopped using the graphical nvidia card, removed it and now I'm using the integrated Intel HD graphics card (Intel® HD Graphics 530 card (Skylake GT2)) and all the problems were solved!
I fixed mine using a few commands from #Qoros solution above. i just ran apt-get update, apt-get install nvidia-current, and sudo reboot. cheers to #Qoros btw!
For me, none of the approaches described in rest of the answers worked.
I was opening multiple terminal tabs running some heavy processes and ubuntu used to freeze when I had 6-7 tabs. I tried monitoring the resources used while I was starting my processes in terminal tabs. You can do it by opening System Monitor app and going to Resources tab.
What I noticed is that when my RAM(8GB) and my swap space(1GB) were completely used up, ubuntu would freeze.
As a solution, I increased my swap space and made it 16GB. After this memory never gets used completely and ubuntu doesn't freeze.
https://askubuntu.com/questions/178712/how-to-increase-swap-space decsibes how to increase swap space.
I have just installed fresh Arch Linux with XFCE4 and downloaded WebStorm. I did everything exactly as it is said in howto file (by executing .sh from bin folder). When i click on the WebStorm icon it looks like nothing is happening but suddenly after around 90s (and its min. value, i wonder how long it would be including project loading..) window pops up showing loading process.
I have pretty strong laptop with i7, 8gig of ram and SSD. There isn't any project loading also. It's fresh start. It used to work on Xubuntu, but it seems like i missed something during installation process or I dont know..
It's recommended to use OracleJDK not OpenJDK.
And try to trace what is happening while loading from terminal because if there is any error it will appear immediately.
Studying vision, I would like to play with the Microsoft Kinect.
Can I use it on my Mac?
I have not found any Library for Mac and fear virtualization on my laptop to use Linux.
I've accessed Kinect data on OSX using openframeworks and the ofxKinect addon (which uses libfreenect and libusb).
It's not the only option, just I've used and worked 'out of the box'.
Try downloading the Zigfu Dev Bundle for mac (http://www.zigfu.com) - that should get you up to speed with kinect development on mac.
Using Kinect on Mac is as easy as ordering Latte.
But there is also a lot of confusion on the Internet and sites that seem to be old and give you the wrong advice such as installing a separate sensor library in addition to OpenNI. Just go to the basic website and download SDK for your MAC:
http://www.openni.org/openni-sdk/
You might need to have prerequsities though I assume you have already installed them, such as:
sudo port install libtool
sudo port install doxygen
restart comp
sudo port install libusb-devel +universal
Troubleshooting:
"sudo rm -f /opt/local/lib/libusb-1.0.0.dylib"
"sudo port clean libusb"
"sudo port install libusb +universal"
No need to compile anything. You should be able to run ./Samples/Bin/SimpleViewer right away after you run sudo ./install.sh.The PROBLEM might be that you have already tried to run it unsuccessfully and put a camera in the wrong state. I have seen errors such as USB intercase cannot be set etc. as a side effect.
Running your code in Eclipse is a different story and may require a few extra steps and changing your Ubuntu code (using openni namespace, different includes, etc.)