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+This is the proprietary binary video driver from NVidia for the X.Org
+X-server. This package does not include the kernel module - it is a part
+of the nvidia-legacy390-kernel package at SlackBuilds.org.
+
+Installing the 32-bit compatibility libraries is available: if desired, do:
+  COMPAT32="yes" ./nvidia-legacy390-driver.SlackBuild
+
+GLVND GLX client libraries are now the default. If these cause any
+compatibility issues with older GLX sofware, either upgrade your software
+or try:
+  GLVND="no" ./nvidia-legacy390-driver.SlackBuild
+
+Several useful utilities are included: nvidia-xsettings, nvidia-smi, and
+nvidia-settings.  Please refer to the Nvidia documentation and man pages
+for details and usage.
+
+For CUDA/OpenCL to work after reboot, and for utilites such as nvidia-smi,
+you might need to include the following line in your /etc/rc.d/rc.local:
+-------------8<---------------
+# Create missing nvidia device nodes after reboot
+/usr/bin/nvidia-modprobe -c 0 -u
+------------->8---------------
+
+Since this nvidia-legacy390-driver conflicts with some files of xorg, it's
+a bit complex to install/uninstall the driver.  However, installation of the
+nvidia-legacy390-driver package itself backs up the conflicting files and puts
+the nvidia-specific files into place.
+
+Included is a script called nvidia-switch, which is used to switch from
+the xorg driver to the nvidia driver, but it will not edit xorg.conf
+for you; you have to do that manually.  The nvidia-switch script is
+installed to /usr/sbin. NOTE: Although nvidia-switch is aware of a
+COMPAT32 environment, its use therein is not supported.
+
+Usage of nvidia-switch:
+  nvidia-switch --install  <--> install the nvidia files and save the
+                                stock xorg files.
+  nvidia-switch --remove   <--> remove the nvidia files and symlinks and
+                                restore the stock xorg files.
+
+You do NOT have to run nvidia-switch after installing the package.
+
+Before uninstalling or upgrading this package, it is important that
+you execute 'nvidia-switch --remove', which will switch back to the
+stock xorg files and remove all links created by nvidia-switch during
+installation. If you forget to do this, you might have to do the switch
+manually, since 'nvidia-switch --install' may fail, resulting in xorg
+not working. Here are the affected files:
+
+  /usr/lib[64]/libGL.so.1.2
+  /usr/lib[64]/libGL.la
+  /usr/lib[64]/libGLESv1_CM.so.1.0.0
+  /usr/lib[64]/libGLESv2.so.2.0.0
+  /usr/lib[64]/libEGL.so.1.0.0
+  /usr/lib[64]/xorg/modules/libwfb.so
+  /usr/lib[64]/xorg/modules/extensions/libglx.so
+
+Simply remove the dead nvidia symlinks and and reinstall the mesa and
+xorg-server packages. See 'nvidia-switch --help'.