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doc update

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git-svn-id: file:///srv/svn/repos/haiku/trunk/current@8392 a95241bf-73f2-0310-859d-f6bbb57e9c96
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Rudolf Cornelissen 2004-07-13 13:43:40 +00:00
parent 88591d4299
commit 1cdd04177a
2 changed files with 9 additions and 6 deletions
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6
src/add-ons/kernel/drivers/graphics/nvidia/README.html
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@ -35,7 +35,7 @@ You use this software at your own risk! Although I don't expect it to damage you
<li>B_YCbCr422 hardware overlay support on both TNT and GeForce series cards (overlay follows head in dualhead stretch/switch modes);
<li>Dualhead support on GeForce dualhead cards (use Mark Watson's 'Dualhead Setup' from BeBits for now);
<li>DVI and laptop panel (widescreen) support;
<li>Basic AGP mode support on AGP cards, using the (seperate) BeOS AGP driver.
<li>Basic AGP mode support on AGP cards, using the new (seperate) (open)BeOS AGP busmanager.
</ul>
<strong>Known limitations:</strong>
<ul>
@ -135,6 +135,10 @@ Keep this option set to <strong>force_pci false</strong>, unless the graphics ca
<li><strong>true:</strong><br>
<strong>force_pci true</strong> prevents the graphicsdriver from activating AGP mode, so it will be using PCI mode like it has always been in the past. The downside of this is that this comes at a performance penalty if your motherboard supports the AGP 'fastwrite' (FW) option, which won't be utilized with this setting.
</ul>
<strong>Note:</strong>
<ul>
<li>If you have trouble using AGP mode, you should prefer tweaking the AGP busmanager settings file as it might well enable you to use a 'lesser' AGP mode instead of falling back to PCI mode alltogether.
</ul>
<li><strong>unhide_fw:</strong><br>
This option is only used if your card is running in AGP mode. It's a real <strong>tweak</strong> option. It's officially unsupported, and it's unknown if it can do harm to your card or system. It exists because using it <strong>can</strong> speedup unaccelerated graphics <strong>a lot</strong>. Think about video playback or playing quake2 in software rendering mode...
<ul>

9
src/add-ons/kernel/drivers/graphics/nvidia/UPDATE.html
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@ -4,19 +4,18 @@
</head>
<body>
<p><h2>Changes done for each driverversion:</h2></p>
<p><h1>head (0.19), (Rudolf)</h1></p>
<p><h1>head (0.21), (Rudolf)</h1></p>
<ul>
<li>Added AGP mode capability on AGP cards along with the option to block it in nv.settings. No GART and AGP aperture support; but if your card and system AGP host bridge support the 'fastwrite' (FW) feature, you'll notice a nice speedup of unaccelerated graphics.
<ul>
<li>Tested Quake 2 in software rendering mode over here using timedemo1 with demo1.dm2: framerates jumped up to 140% of the 'original' in 'just' AGP2.0 4X mode!
<li>Tested Quake 2 in software rendering mode over here using timedemo1 with demo1.dm2: framerates jumped up to 140% of the 'original' in AGP2.0 4X mode!
<li>Also tested video playback using bitmap output mode: CPU load drops considerably depending on desktop colordepth and resolution of the video played back.<br>
<li>2D acceleration will not speedup because it's working 'local', so within the graphics cards engine and it's RAM only.
</ul>
<strong>Note please:</strong><br>
<ul>
<li>You need the new AGP kernel driver I setup for this feature, without it you will remain using PCI mode as usual.
<li>This AGP stuff BTW will be re-setup later on (as a module) to be graphics driver-independant so all AGP cards, even AGP cards running in VESA mode, can profit from it.
<li>If you have trouble with AGP, you have the option to shut it off by setting 'force_pci true' in nv.settings now.
<li>You need the new (seperate) (open)BeOS AGP busmanager module that has been setup for this feature, without it you will remain using PCI mode as usual.
<li>If you have trouble with AGP, you have the option to shut it off by setting 'force_pci true' in nv.settings. You are adviced however to tweak the AGP busmanager settings file instead, as this might enable you to keep using AGP mode, be it in a slower setting.
</ul>
<li>Updated CRTC modeline tuning for panels: this should fix the 'right-shifted' picture on some panels in their native modes;
<li>Fixed BIOS ROM dump (to file) option;