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X.org 6.8.2 with Radeon big-endian fix
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Author:  dholm [ Fri Feb 11, 2005 4:53 am ]
Post subject:  X.org 6.8.2 with Radeon big-endian fix
X.org 6.8.2 was released yesterday and is available in portage now (in the '~ppc' profile). It also includes a patch that should fix the problems with the DRI Radeon driver on big-endian machines. The new Radeon driver should prove to be significantly faster than the old one, making most (open source) 3D games fully playable on the Pegasos II equipped with a Radeon 9x00.

Add the following lines to your device section to improve OpenGL performance (suggested by Marcin 'Morgoth' Kurek):
Option "BackingStore" "true"
Option "EnablePageFlip" "true"
Author:  RockmanX [ Fri Feb 11, 2005 5:35 am ]
Post subject:  Re: X.org 6.8.2 with Radeon big-endian fix
And what about the PCI mode option? Still necessary?
Author:  dholm [ Fri Feb 11, 2005 5:41 am ]
Post subject:  Re: X.org 6.8.2 with Radeon big-endian fix
Quote:
And what about the PCI mode option? Still necessary?
Yes, since there is no AGP driver for the Pegasos.
Author:  hawk [ Sun Feb 13, 2005 5:36 am ]
Post subject:  Re: X.org 6.8.2 with Radeon big-endian fix
I compiled 6.8.2 :-D
Now the opengl apps in enlightenment work properly :-D Before I just got cyan and magenta trash ^^; ( evas_gl_x11_test )


What it really helped were those 2 options. What's are they? The glxgears test increased performance from 330 fps to 450 fps! From 75 to 110 fps at full screen :-D (Radeon 9200, Peg-2 G3)

Thank u!
Author:  RockmanX [ Sun Feb 13, 2005 7:42 am ]
Post subject:  Re: X.org 6.8.2 with Radeon big-endian fix
Wow! Evas running OpenGL?! That's something I wanted! It will increase performance with Engage and Entrance too! :D
@hawk:
Since I verified I haven't compiled the kernel to run fbsplash and I don't want to, is it possible to run Entrance soon after OF boot? Have you tried it?
Author:  hawk [ Sun Feb 13, 2005 2:00 pm ]
Post subject:  Re: X.org 6.8.2 with Radeon big-endian fix
Haven't tried Entrance. I don't use graphical login managers :-P I just go and type startx :-P

I use engage with fluxbox. But the GL version of Engage still looks magenta! :-( Now I can see the icons, but still buggy... mmm... but evas test is ok.... I ll try to take a look at it.

cu!
Author:  Neko [ Mon Feb 14, 2005 11:52 pm ]
Post subject:  Re: X.org 6.8.2 with Radeon big-endian fix
Quote:

What it really helped were those 2 options. What's are they? The glxgears test increased performance from 330 fps to 450 fps! From 75 to 110 fps at full screen :-D
Option "EnablePageFlip" "true" - this enables hardware page flipping. Otherwise to update the display basically X does a blit - significantly slower to copy the framebuffer to another position, than to just say "now use this address".

Option "BackingStore" "true" - this lets the server remember occlusion on windows, so it doesn't need to send events to the client in order to redraw uncovered portions of windows (basically when you drag a window over another, it saves what was underneath, and when you drag back away, it puts it back. This is a lot quicker than doing several roundtrips over the X protocol)

Neko
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