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| -rw-r--r-- | BUILD.md | 61 |
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@@ -115,6 +115,67 @@ sudo service lightdm restart ``` xdpyinfo | grep DRI ``` +### Ubuntu 15.10 support of DRI 3 + +Ubuntu 15.10 has never shipped a xserver-xorg-video-intel package with supported DRI 3 on intel graphics. +The xserver-xorg-video-intel package can be built from source with DRI 3 enabled. +Use the following commands to enable DRI3 on ubuntu 15.10. + +- Install packages used to build: +``` +sudo apt-get update +sudo apt-get dist-upgrade +sudo apt-get install devscripts +sudo apt-get build-dep xserver-xorg-video-intel +``` + +- Get the source code for xserver-xorg-video-intel +``` +mkdir xserver-xorg-video-intel_source +cd xserver-xorg-video-intel_source +apt-get source xserver-xorg-video-intel +cd xserver-xorg-video-intel-2.99.917+git20150808 +debian/rules patch +quilt new 'enable-DRI3' +quilt edit configure.ac +``` + +- Use the editor to make these changes. +``` +Index: xserver-xorg-video-intel-2.99.917+git20150808/configure.ac +=================================================================== +--- xserver-xorg-video-intel-2.99.917+git20150808.orig/configure.ac ++++ xserver-xorg-video-intel-2.99.917+git20150808/configure.ac +@@ -356,7 +356,7 @@ AC_ARG_WITH(default-dri, + AS_HELP_STRING([--with-default-dri], + [Select the default maximum DRI level [default 2]]), + [DRI_DEFAULT=$withval], +- [DRI_DEFAULT=2]) ++ [DRI_DEFAULT=3]) + if test "x$DRI_DEFAULT" = "x0"; then + AC_DEFINE(DEFAULT_DRI_LEVEL, 0,[Default DRI level]) + else +``` +- Build and install xserver-xorg-video-intel +``` +quilt refresh +debian/rules clean +debuild -us -uc +sudo dpkg -i ../xserver-xorg-video-intel_2.99.917+git20150808-0ubuntu4_amd64.deb +``` +- Prevent updates from replacing this version of the package. +``` +sudo bash -c 'echo xserver-xorg-video-intel hold | dpkg --set-selections' +``` +- save your work then restart the X server with the next command. +``` +sudo service lightdm restart +``` +- After logging in again, check for success with this command and look for DRI3. +``` +xdpyinfo | grep DRI +``` + ## Clone the repository |