2020. 2. 18. 10:55ㆍ카테고리 없음
Machine is 64-bit ACPI motherboard with i5 quad-coreand 8 Gb of memory running Windows 10-Pro host.Monitor is Acer T232HL touchscreen. Video card is AMD Radeon R7 200.Installed VirtualBox then created guest virtual machine with2Gb of allocated memory and 200Gb of fixed virtual disk and 128 Mbof video memory.Installed Ubuntu Desktop 16.04, then installed Guest Additions.3D acceleration is checked and confirmed.Guest machine is still painfully slow, with refresh errors leavingsome menus blank.Any suggestions? Some general troubleshooting.Make sure Unity can use 3D acceleration - it makes a big difference.
Run /usr/lib/nux/unitysupporttest -p from the terminal and note whether the last line shows Unity 3D supported: yes. If not, enable it in the VM options.Check you have given it enough video memory. The default settings in VirtualBox for guests are pretty low. Give it 64MB at least, and 128MB if you can.Check screen resolution.
No matter what hardware I try, it just can't seem to power my 4K screen at its native resolution (3840 x 2160). Significantly better experience at 1920 x 1080, scaled.Check CPU virtualisation settings. If you have, say, a 4-core CPU don't assign all 4 cores to the VM. If you do that, the VM guest will fight the host for resources and the result is that it will actually run slower. Stick to one or two cores.
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(There's not much difference between 1 and 2 in my experience, but yours may differ).Do the same for RAM as for CPU. Don't assign more RAM than you need - ensure the host has enough left for itself. 4GB for Ubuntu desktop seems fine for practically everything I throw at it.I've read that people get better speeds on a mechanical hard disk by using a fixed allocation virtual HDD rather than dynamic. In my experience there's no noticeable difference, but perhaps worth mentioning anyway. I want to share what I figured out, and trust me it took me very long:Ubuntu Unity likes a real graphics card, not virtual stuff from vmshare or virtualboxIt just doesn't work well in virtual box.You can try all the stuff the other guy posted and it will be better, but not like you want it to be. Basically: don't waste your time.Alternatively:Use another distribution that does not use Unity as UI.I've successfully used Lubuntu 14.04Not 16.04, because I did it a couple years back. And I think Lubuntu changed their UI, so be warned.Another option is to switch to Gnome, but that switch has to be done completely, without exception.
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( )I remember trying something like that back when I had my problems, and it did not work well neither.There SEEMS to be an option to uninstall it via.A friend of me is doing that just that right now. I will let you guys know about it.Better:Use an image that comes with a different UI engine. Gnome, KDE, Lubuntu are some examples that should work. Lubuntu works for sure, at least in 14.04.EDIT:So my friend tried out and said Lubuntu 16.04 does feel a lot faster and more native than his Ubuntu install. But instead of reinstalling everything on Lubuntu, he tried out switching to gnome and followed (mentioned earlier).He said that after switching to gnome and removing Unity, it feels a lot more native.
. Improved compatibility with recent Linux kernels.
Fixed a string concatenation bug that caused libGL to accidentally try to create the directory '$HOME.nv' rather than '$HOME/.nv' in some cases where /tmp isn't accessible. Increased the version numbers of the GLVND libGL, libGLESv1CM, libGLESv2, and libEGL libraries, to prevent concurrently installed non-GLVND libraries from taking precedence in the dynamic linker cache. Fixed a bug which could cause X servers that export a Video Driver ABI earlier than 0.8 to crash when running X11 applications which call XRenderAddTraps. Known issue:Vulkan with flipping enabled on Quadro cards can lead to graphic corruption.If you think you have run into it you can do either of the following as a workaround:- Disable flipping in nvidia-settings (uncheck 'Allow Flipping' in the 'OpenGL Settings' panel)- Disable UBB (run 'nvidia-xconfig -no-ubb')- Use a composited desktopNote that many Linux distributions provide their own packages of the NVIDIA Linux Graphics Driver in the distribution's native package management format.
This may interact better with the rest of your distribution's framework, and you may want to use this rather than NVIDIA's official package.Also note that SuSE users should read the SuSE NVIDIA Installer before downloading the driver.Installation instructions: Once you have downloaded the driver, change to the directory containing the driver package and install the driver by running, as root, sh./NVIDIA-Linux-x8664-384.130.runOne of the last installation steps will offer to update your X configuration file. Either accept that offer, edit your X configuration file manually so that the NVIDIA X driver will be used, or run nvidia-xconfigNote that the list of supported GPU products is provided to indicate which GPUs are supported by a particular driver version. Some designs incorporating supported GPUs may not be compatible with the NVIDIA Linux driver: in particular, notebook and all-in-one desktop designs with switchable (hybrid) or Optimus graphics will not work if means to disable the integrated graphics in hardware are not available. Hardware designs will vary from manufacturer to manufacturer, so please consult with a system's manufacturer to determine whether that particular system is compatible.See the for more detailed instructions.For further information please visit our forum,.