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nVidia requires MTRR

1 swift 1.1 <?xml version='1.0' encoding="UTF-8"?>
2 swift 1.5 <!-- $Header: /var/cvsroot/gentoo/xml/htdocs/doc/en/nvidia-guide.xml,v 1.4 2004/07/31 12:30:39 swift Exp $ -->
3 swift 1.1 <!DOCTYPE guide SYSTEM "/dtd/guide.dtd">
4    
5     <guide link="/doc/en/nvidia-guide.xml">
6     <title>Gentoo Linux nVidia Guide</title>
7    
8     <author title="Author">
9     <mail link="swift@gentoo.org">Sven Vermeulen</mail>
10     </author>
11    
12     <abstract>
13     Many Gentooists have an nVidia chipset on their system. nVidia provides specific
14     Linux drivers to boost the performance of your card. This guide informs you how
15     to install and configure these drivers.
16     </abstract>
17    
18     <license/>
19    
20 swift 1.5 <version>1.3</version>
21     <date>August 19, 2004</date>
22 swift 1.1
23     <chapter>
24     <title>Configuring your Card</title>
25     <section>
26     <title>Installing the Appropriate Drivers</title>
27     <body>
28    
29     <p>
30     The nVidia drivers include kernel modules that must integrate in your current
31     kernel. To accomplish this, your kernel must support the loading of kernel
32     modules. If you used <c>genkernel</c> to configure the kernel for you then
33     you're all set. If not, double check your kernel configuration so that this
34     support is enabled:
35     </p>
36    
37     <pre caption="Enabling the Loading of Kernel Modules">
38     Loadable module support ---&gt;
39     [*] Enable loadable module support
40     </pre>
41    
42     <p>
43 swift 1.5 You also need to enable <e>Memory Type Range Register</e> in your kernel:
44     </p>
45    
46     <pre caption="Enabling MTRR">
47     Processor and Features ---&gt;
48     [*] MTRR (Memory Type Range Register) support
49     </pre>
50    
51     <p>
52 swift 1.1 nVidia's modules and libraries are combined in two packages: <c>nvidia-glx</c>
53     and <c>nvidia-kernel</c>. The former are the X11 GLX libraries while the latter
54 swift 1.3 are the kernel modules. Since <c>nvidia-glx</c> depends on <c>nvidia-kernel</c>,
55     installing <c>nvidia-glx</c> is sufficient:
56 swift 1.1 </p>
57    
58     <pre caption="Installing the nVidia modules">
59 swift 1.3 # <i>emerge nvidia-glx</i>
60 swift 1.1 </pre>
61    
62     <p>
63     Once the installation has finished, run <c>modprobe nvidia</c> to load the
64     kernel module into memory.
65     </p>
66    
67     <pre caption="Loading the kernel module">
68     # <i>modprobe nvidia</i>
69     </pre>
70    
71     <p>
72     You probably want to have this done each time you boot your system, so edit
73     <path>/etc/modules.autoload.d/kernel-2.6</path> (or <path>kernel-2.4</path>) and
74     add <c>nvidia</c> to it. Don't forget to run <c>modules-update</c> afterwards!
75     </p>
76    
77     <pre caption="Running modules-update">
78     # <i>modules-update</i>
79     </pre>
80    
81     </body>
82     </section>
83     <section>
84     <title>Configuring the X Server</title>
85     <body>
86    
87     <p>
88     Once the appropriate drivers are installed you need to configure your X Server
89     (XFree86 or Xorg) to use the <c>nvidia</c> driver instead of the default
90     <c>nv</c> driver.
91     </p>
92    
93     <p>
94     Open <path>/etc/X11/XF86Config</path> (or <path>/etc/X11/xorg.conf</path>) with
95     your favorite editor (such as <c>nano</c> or <c>vim</c>) and go to the
96     <c>Device</c> section. In that section, change the <c>Driver</c> line:
97     </p>
98    
99     <pre caption="Changing nv to nvidia in the X Server configuration">
100     Section "Device"
101     Identifier "nVidia Inc. GeForce2"
102     <i>Driver "nvidia"</i>
103     VideoRam 65536
104     EndSection
105     </pre>
106    
107     <p>
108 swift 1.4 Then go to the <c>Module</c> section and make sure the <c>glx</c> module gets
109     loaded while the <c>dri</c> module doesn't:
110     </p>
111    
112     <pre caption="Updating the Module section">
113     Section "Module"
114     <comment>(...)</comment>
115     <i># Load "dri"
116     Load "glx"</i>
117     <comment>(...)</comment>
118     EndSection
119     </pre>
120    
121     <p>
122 swift 1.1 Run <c>opengl-update</c> so that the X Server uses the nVidia GLX libraries:
123     </p>
124    
125     <pre caption="Running opengl-update">
126     # <i>opengl-update nvidia</i>
127     </pre>
128    
129     </body>
130     </section>
131     <section>
132     <title>Testing your Card</title>
133     <body>
134    
135     <p>
136     To test your nVidia card, fire up X and run the <c>glxinfo | grep direct</c>
137     command. It should say that direct rendering is activated:
138     </p>
139    
140     <pre caption="Checking the direct rendering status">
141     $ <i>glxinfo | grep direct</i>
142     direct rendering: Yes
143     </pre>
144    
145     <p>
146     To monitor your FPS, run <c>glxgears</c>.
147     </p>
148    
149     </body>
150     </section>
151     </chapter>
152     </guide>

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