LookingGlass

An extremely low latency KVMFR (KVM FrameRelay) implementation for guests with VGA PCI Passthrough. (by gnif)

LookingGlass Alternatives

Similar projects and alternatives to LookingGlass

NOTE: The number of mentions on this list indicates mentions on common posts plus user suggested alternatives. Hence, a higher number means a better LookingGlass alternative or higher similarity.

LookingGlass reviews and mentions

Posts with mentions or reviews of LookingGlass. We have used some of these posts to build our list of alternatives and similar projects. The last one was on 2023-08-12.
  • VirGL
    7 projects | news.ycombinator.com | 12 Aug 2023
    Unfortunately AMD cards suffer from a reset bug, still.

    The reset bug being that you can pass through the card fine, once. But if you try to pass it through again (or the card experiences an issue and needs to reset), they get caught in some kind of bad state and won’t work until power is removed and restored. Which requires a reboot or a only slightly less disruptive dance with system power states.

    For vega and 5000 series gpu’s, there’s https://github.com/gnif/vendor-reset

    Incidentally, nvidia gpus are so good at resetting, they’ve probably done so without you noticing. If the screen ever goes black for a fraction of a second and returns in normal usage, it was probably because it reset itself.

    The lower 6000 series lower than the 6800’s for example may or may not have the issue. It seems most “reference” cards are fine, but custom vendor cards often but not always have issues. My reference 6700 works fine, but a sapphire 6700 probably won’t.

    And the 7000 series is also fucky in a new way somehow. Gnif knows far more about this than me, and has basically thrown up his hands at how AMD doesn’t care. He’s made occasional posts about it on https://forum.level1techs.com/

    Gnif is also responsible for Looking glass: https://github.com/gnif/LookingGlass

  • Virtual Machine stinkyness
    1 project | /r/linuxquestions | 1 May 2023
    You could try LookingGlass. That may require two GPUs.
  • scrcpy 2.0 is released, with audio support!
    3 projects | /r/linux | 12 Mar 2023
    It's a pair of apps, one runs on a Windows virtual machine, the other on the host OS, that uses shared memory to copy a passed-through GPUs frame buffer. Runs fast enough to get 4k/120fps very low latency, so if you have a spare GPU you can game on it in Windows, from a Linux desktop. https://github.com/gnif/LookingGlass
  • Can you make a passed through GPU display to a emulated display in virt-manager?
    1 project | /r/VFIO | 5 Mar 2023
    Check out https://github.com/gnif/LookingGlass if you can accept a separate window.
  • looking glass doesn't detect my mouse
    1 project | /r/VFIO | 4 Feb 2023
    then everything looks normal. It's all up to EGL though, as looking-glass really doesn't have any code that handles image scaling (see here).
  • Looking glass B6 released!
    1 project | /r/VFIO | 20 Dec 2022
  • AMD RX580 passthrough with looking glass doesn't work
    1 project | /r/VFIO | 8 Oct 2022
  • The Death of the PCIe Expansion Card
    2 projects | news.ycombinator.com | 6 Sep 2022
    https://github.com/Arc-Compute/LibVF.IO/tree/master/ plus https://github.com/gnif/LookingGlass works pretty well. If you use an Intel GPU, particularly one of their new Arc dedicated GPUs, it supports the functionality on the consumer grade hardware without any trickery and you just need Looking Glass to map the outputs.
  • Passing audio from 1 VM to another for final mixing?
    1 project | /r/VFIO | 8 Apr 2022
    I'd like to introduce you to Looking Glass as a much higher quality and lower latency alternative to NDI when you are trying to relay frames between virtual machines within the same computer. With a patched nvidia driver to enable nvfbc on the gaming VM there is almost zero performance penalty when capturing gameplay. It also has options for audio, which I don't use because they didn't exist when I was configuring my system. I have a similar use case (gaming and streaming) and hardware (5950X + two gpus). I am not using proxmox, however. My configuration using QEMU and libvirt has this XML:
  • Looking Glass Beta 5 Released!
    2 projects | /r/VFIO | 26 Dec 2021
    What stopping from tagging a stable release? The milestone has no open issues.
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    workos.com | 19 Apr 2024
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Stats

Basic LookingGlass repo stats
24
4,467
9.5
11 days ago
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