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nightmorph 06/05/12 19:32:26 |
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|
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Modified: dri-howto.xml |
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Log: |
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Finally added hardware checks for dri-howto.xml. *and* they're non-nvidia-specific, though they work for nvidia cards. radeon-ricers can rejoice, though ymmv. not responsible for breakages. not responsible for lost or stolen articles. void where prohibited. |
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Revision Changes Path |
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1.30 xml/htdocs/doc/en/dri-howto.xml |
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|
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file : http://www.gentoo.org/cgi-bin/viewcvs.cgi/xml/htdocs/doc/en/dri-howto.xml?rev=1.30&content-type=text/x-cvsweb-markup&cvsroot=gentoo |
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plain: http://www.gentoo.org/cgi-bin/viewcvs.cgi/xml/htdocs/doc/en/dri-howto.xml?rev=1.30&content-type=text/plain&cvsroot=gentoo |
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diff : http://www.gentoo.org/cgi-bin/viewcvs.cgi/xml/htdocs/doc/en/dri-howto.xml.diff?r1=1.29&r2=1.30&cvsroot=gentoo |
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|
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Index: dri-howto.xml |
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=================================================================== |
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RCS file: /var/cvsroot/gentoo/xml/htdocs/doc/en/dri-howto.xml,v |
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retrieving revision 1.29 |
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retrieving revision 1.30 |
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diff -u -r1.29 -r1.30 |
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--- dri-howto.xml 7 May 2006 12:39:17 -0000 1.29 |
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+++ dri-howto.xml 12 May 2006 19:32:26 -0000 1.30 |
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@@ -1,5 +1,5 @@ |
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<?xml version="1.0" encoding="UTF-8"?> |
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-<!-- $Header: /var/cvsroot/gentoo/xml/htdocs/doc/en/dri-howto.xml,v 1.29 2006/05/07 12:39:17 nightmorph Exp $ --> |
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+<!-- $Header: /var/cvsroot/gentoo/xml/htdocs/doc/en/dri-howto.xml,v 1.30 2006/05/12 19:32:26 nightmorph Exp $ --> |
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<!DOCTYPE guide SYSTEM "/dtd/guide.dtd"> |
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|
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<guide link="/doc/en/dri-howto.xml"> |
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@@ -21,7 +21,7 @@ |
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<license/> |
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|
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<version>1.3</version> |
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-<date>2006-05-07</date> |
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+<date>2006-05-12</date> |
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|
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<chapter> |
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<title>Introduction</title> |
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@@ -442,8 +442,66 @@ |
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<body> |
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|
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<p> |
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-A few options may increase performance by up to 30 percent (or more) over the |
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-default. Set them in <path>/etc/X11/xorg.conf</path>. |
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+A few options may increase performance by up to 30 percent (or more) over the |
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+default. Set them in <path>/etc/X11/xorg.conf</path>. However, you will first |
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+need to check that your motherboard and video card support these options. |
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+</p> |
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+ |
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+<p> |
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+First, let's see if your video card can support fast writes. We'll do this by |
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+closely inspecting the output from <c>lspci</c>. Specifically, we are looking |
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+at the "VGA compatible controller" information. |
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+</p> |
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+ |
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+<pre caption="Video card check"> |
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+# <i>lspci -vv</i> |
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+01:00.0 VGA compatible controller: ATI Technologies Inc Radeon Mobility M6 LY (prog-if 00 [VGA]) |
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+. . . |
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+Capabilities: [58] AGP version 2.0 |
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+ Status: RQ=48 Iso- ArqSz=0 Cal=0 SBA+ ITACoh- GART64- HTrans- 64bit- FW+ AGP3- Rate=x1,x2,x4 |
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+</pre> |
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+ |
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+<p> |
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+While quite a lot of information is produced, we are looking for <b>FW</b> in |
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+the "Status" subsection of the AGP "Capabilities" section. If <b>FW+</b> is |
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+present in the "Status" line, it means the card supports fast writes. We can |
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+now check if the motherboard supports fast writes. |
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+</p> |
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+ |
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+<impo> |
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+If you do not see <b>FW+</b>, but instead see <b>FW-</b>, you cannot enable |
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+fast writes in <path>xorg.conf</path>. Your card does not support fast writes. |
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+</impo> |
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+ |
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+<p> |
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+Now let's make sure the motherboard supports fast writes as well. This time, |
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+look at the "Host bridge" section of your <c>lspci</c> output. |
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+</p> |
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+ |
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+<pre caption="Motherboard check"> |
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+# <i>lspci -vv</i> |
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+00:00.0 Host bridge: Intel Corporation 82830 830 Chipset Host Bridge (rev 02) |
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+. . . |
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+Capabilities: [a0] AGP version 2.0 |
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+ Status: RQ=32 Iso- ArqSz=0 Cal=0 SBA+ ITACoh- GART64- HTrans- 64bit- FW+ AGP3- Rate=x1,x2,x4 |
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+</pre> |
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+ |
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+<p> |
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+Again, examine the "Status" subsection of your AGP "Capabilities" section. Look |
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+for <b>FW</b>. If you see <b>FW+</b>, your motherboard supports fast writes. |
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+</p> |
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+ |
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+<impo> |
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+Remember, both your video card information and your motherboard information |
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+must show the same <b>FW</b> capability. If either device shows <b>FW-</b> in |
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+"Status", you cannot enable fast writes in <path>xorg.conf</path>. |
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+</impo> |
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+ |
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+<p> |
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+Assuming that all has gone well and both your motherboard and video card |
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+support fast writes, let's enable this option in |
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+<path>/etc/X11/xorg.conf</path> and get the best performance out of your |
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+hardware. |
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</p> |
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|
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<pre caption="xorg.conf"> |
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@@ -470,46 +528,6 @@ |
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enable the appropriate option in your BIOS. |
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</note> |
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|
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-<!-- |
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-** |
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-This section needs to be in eventually, but non-nvidia cards don't use |
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-/proc/driver at all. We need some way to get users to check and see that SBA |
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-and fast-writes are allowed for their hardware; that info is somewhere else in |
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-/proc. If you have a non-nvidia card, you can help by emailing |
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-nightmorph@g.o with the relevant bits of your /proc so I can get this |
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-info into the guide. See below for where things are found on an nvidia card. |
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-** |
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- |
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-<p> |
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-A few options may increase performance by up to 30 percent (or more) over the |
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-default. Set them in <path>/etc/X11/xorg.conf</path>. However, you will first |
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-need to check that your motherboard and video card support these options. |
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-</p> |
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- |
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-<p> |
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-First, let's check the supported modes of your video cards, and see if your it |
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-supports fast writes. Remember to replace <c>nvidia</c> with the actual name of |
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-your device in <path>/proc/driver/nvidia/</path>. |
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-</p> |
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- |
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-<pre caption="Video card check"> |
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-$ <i>cat /proc/driver/nvidia/agp/card</i> |
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-</pre> |
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- |
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-<p> |
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-Next, let's check out the capabilities of the motherboard: |
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-</p> |
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- |
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-<pre caption="Motherboard check"> |
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-$ <i>cat /proc/driver/nvidia/agp/host-bridge</i> |
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-</pre> |
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- |
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-<impo> |
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-Remember, the modes and capabilities for your video card and motherboard must |
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-match for these settings to work! |
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-</impo> |
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---> |
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- |
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<p> |
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If you want to set even more features, check out the <uri |
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link="http://dri.freedesktop.org/wiki/FeatureMatrix">feature matrix</uri> on |
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-- |
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