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            <b><a class="bz_bug_link 
          bz_status_NEW "
   title="NEW - GPU lock ups when starting GDM, SDDM, and Plasma Desktop"
   href="https://bugs.freedesktop.org/show_bug.cgi?id=98631#c4">Comment # 4</a>
              on <a class="bz_bug_link 
          bz_status_NEW "
   title="NEW - GPU lock ups when starting GDM, SDDM, and Plasma Desktop"
   href="https://bugs.freedesktop.org/show_bug.cgi?id=98631">bug 98631</a>
              from <span class="vcard"><a class="email" href="mailto:pomidorabelisima@gmail.com" title="poma <pomidorabelisima@gmail.com>"> <span class="fn">poma</span></a>
</span></b>
        <pre>Apropos Xfce 4.12, notice two variants of the Xfwm4:

= Xfwm4 4.12.3 "released" - Xrender driven compositor,
  it can be run on virtually any machine

$ xfwm4 --version
        ...
        Build configuration and supported features:
        - Render support:                               Yes
        - Embedded compositor:                          Yes


= Xfwm4 "not released" - GL(X) driven compositor,
  <a href="https://git.xfce.org/xfce/xfwm4/commit/?id=fee08ea">https://git.xfce.org/xfce/xfwm4/commit/?id=fee08ea</a>
  it can run on NV50 family (Tesla),
  <a href="https://nouveau.freedesktop.org/wiki/CodeNames/#NV50">https://nouveau.freedesktop.org/wiki/CodeNames/#NV50</a>
  on e.g. NV30 is slow, i.e. not very useful,
  although it may have to do with the performance of the CPU.

$ xfwm4 --version
        ...
        Build configuration and supported features:
        - Embedded compositor:                          Yes
        - Epoxy support:                                Yes



LightDM GTK+ Greeter (lightdm-gtk-greeter) is not accelerated,
therefore it can be run on virtually any machine.


KF5/KDE5 i.e. KWin also provides two variants of the compositor, GL and XRender
driven.


One important difference is that Xrender driven compositors aren't tear-free.</pre>
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