Revert "upgrade video-intel stack to 2.99.906"

This reverts commit 89f710f18e.

Reported by others for xorg-server to crash on different kernel
versions.

pkgs/development/libraries/libva/default.nix

@@ -1,11 +1,11 @@
 { stdenv, fetchurl, libX11, pkgconfig, libXext, mesa, libdrm, libXfixes }:
 
 stdenv.mkDerivation rec {
-  name = "libva-1.2.1";
+  name = "libva-1.1.1";
   
   src = fetchurl {
     url = "http://www.freedesktop.org/software/vaapi/releases/libva/${name}.tar.bz2";
-    sha256 = "0fx8ivaghpq8g099bzwy5dm3bqnkbbhjq3qhgrpk390c4s5hy23h";
+    sha256 = "0kfdcrzcr82g15l0vvmm6rqr0f0604d4dgrza78gn6bfx7rppby0";
   };
 
   buildInputs = [ libX11 libXext pkgconfig mesa libdrm libXfixes ];

pkgs/development/libraries/vaapi-intel/default.nix

@@ -2,11 +2,11 @@
 , intelgen4asm }:
 
 stdenv.mkDerivation rec {
-  name = "libva-intel-driver-1.2.2";
+  name = "libva-intel-driver-1.0.20";
 
   src = fetchurl {
     url = "http://www.freedesktop.org/software/vaapi/releases/libva-intel-driver/${name}.tar.bz2";
-    sha256 = "0i3h9g8flnxf8gmag65xkvz7rib51dvx841ym3am5v3p51w79i0r";
+    sha256 = "1jfl8909j3a3in6m8b5bx3dn7pzr8a1sw3sk4vzm7h3j2dkgpzhj";
   };
 
   buildInputs = [ pkgconfig libdrm libva libX11 ];

pkgs/servers/x11/xorg/default.nix

@@ -1510,14 +1510,14 @@ let
   })) // {inherit fontsproto libpciaccess randrproto renderproto videoproto xextproto xorgserver xproto ;};
 
   xf86videointel = (stdenv.mkDerivation ((if overrides ? xf86videointel then overrides.xf86videointel else x: x) {
-    name = "xf86-video-intel-2.99.906";
+    name = "xf86-video-intel-2.21.15";
     builder = ./builder.sh;
     src = fetchurl {
-      url = mirror://xorg/individual/driver/xf86-video-intel-2.99.906.tar.bz2;
-      sha256 = "1miwyv20q8bz5wml9n16l9vbrcnwpy7a3d3cmc92dy2p0b7474rd";
+      url = mirror://xorg/individual/driver/xf86-video-intel-2.21.15.tar.bz2;
+      sha256 = "1z6ncmpszmwqi9xr590c4kp4gjjf7mndcr56r35x2bx7h87i8nkx";
     };
-    buildInputs = [pkgconfig dri2proto fontsproto libdrm udev libpciaccess randrproto renderproto libX11 xcbutil libxcb libXcursor libXdamage libXext xextproto xf86driproto libXfixes libXinerama xorgserver xproto libXrandr libXrender libXtst libXvMC ];
-  })) // {inherit dri2proto fontsproto libdrm udev libpciaccess randrproto renderproto libX11 xcbutil libxcb libXcursor libXdamage libXext xextproto xf86driproto libXfixes libXinerama xorgserver xproto libXrandr libXrender libXtst libXvMC ;};
+    buildInputs = [pkgconfig dri2proto fontsproto libdrm udev libpciaccess randrproto renderproto libX11 xcbutil libxcb libXext xextproto xf86driproto xorgserver xproto libXrender libXvMC ];
+  })) // {inherit dri2proto fontsproto libdrm udev libpciaccess randrproto renderproto libX11 xcbutil libxcb libXext xextproto xf86driproto xorgserver xproto libXrender libXvMC ;};
 
   xf86videomach64 = (stdenv.mkDerivation ((if overrides ? xf86videomach64 then overrides.xf86videomach64 else x: x) {
     name = "xf86-video-mach64-6.9.4";

pkgs/servers/x11/xorg/tarballs-7.7.list

@@ -129,7 +129,7 @@ mirror://xorg/individual/driver/xf86-video-geode-2.11.14.tar.bz2
 mirror://xorg/individual/driver/xf86-video-glide-1.2.1.tar.bz2
 mirror://xorg/individual/driver/xf86-video-glint-1.2.8.tar.bz2
 mirror://xorg/individual/driver/xf86-video-i128-1.3.6.tar.bz2
-mirror://xorg/individual/driver/xf86-video-intel-2.99.906.tar.bz2
+mirror://xorg/individual/driver/xf86-video-intel-2.21.9.tar.bz2
 mirror://xorg/individual/driver/xf86-video-mach64-6.9.4.tar.bz2
 mirror://xorg/individual/driver/xf86-video-mga-1.6.2.tar.bz2
 mirror://xorg/individual/driver/xf86-video-neomagic-1.2.8.tar.bz2