Difference between revisions of "Talk:ATI"

From ArchWiki
Jump to: navigation, search
(EXA and Adobe Flash performance)
(42 intermediate revisions by 18 users not shown)
Line 1: Line 1:
== Configuration instructions 2008/07 ==
+
== KMS -- do we have to do anything at all to enable it? ==
Kudos to PCMan for adding detailed instructions on proper xorg.conf troubleshooting, but I'm wondering how necessary it is.  If users run <tt>hwd -x</tt> to generate their configs (instead of <tt>Xorg -configure</tt>) all of the necessary items ''are'' added to xorg.conf automatically, making the bulk of the new information unnecessary.
+
The KMS sections says it's on by default, should we even have to put radeon in MODULES any longer? If not, the intro to that section should probably mention that "you can skip the rest of this section if 'dmesg|grep modesetting' shows 'radeon kernel modesetting enabled'.
  
Is there a reason we don't instruct users to run <tt>hwd</tt> to generate the xorg.conf files?
+
=== KMS Early ===
 +
I don't know how others feel about this, but my preferred setup is to put <tt>options radeon modeset=1</tt> in <tt>modprobe.conf</tt> and then to include <tt>modprobe.con</tt> along with the <tt>radeon</tt> module in <tt>mkinitcpio.conf</tt>. This way KMS is enabled once for both early and late start. Also, in the event of problems, <tt>radeon.modeset=1</tt> can still be added as a kernel option to the bootloader. --[[User:piezoelectric|piezoelectric]]
  
--[[User:Thayer|Thayer]] @ 2008/07/02
+
== Enabling video acceleration ==
  
If you are sure hwd -x is the best way to do this, then you should change the wiki to recommend this option.
+
<tt>~/.bashrc</tt> is the wrong place for setting this environment variables. This file is not consulted when starting i.e. firefox from the gnome shell. As it is a hardware dependent setting that is reasonable for every user on this box, i created a file in /etc/profile.d/ to accomplish this.  
I am not sure, since I'm new with linux and so forth.
+
  
== EXA and Adobe Flash performance ==
+
Setting this variables makes a difference when using flashplayer for youtube videos. When set, flashplayer reports accelerated rendering enabled at home with my ati hd3200 onboard graphics and rendering is faster in full screen mode.
  
I noticed that enabling
+
It works now no more worse than under windows.
<pre>Option "AccelMethod" "EXA"</pre>
+
as mentioned under "Performance tuning" lead to significantly worse Flash performance. This was using extra/flashplugin 10.0.22.87-1, aur/firefox-beta 3.5rc2-1 and extra/xf86-video-ati 6.12.2-2. My card (ATI Radeon 9550) uses the RV350 chipset, hence it is a bit dated. 
+
 
+
If this isn't just a local phenomena, perhaps it should be mentioned?
+
 
+
----
+
 
+
I don't know. I disabled EXA, and got even worse Flash performance, according to a flash benchmark test I found at Snails Animation [http://www.snailsanimation.com/benchmark08_play.php]. (flashplugin 10.0.32.18-1.1, firefox 3.5.3-1, xf86-video-ati 6.12.2-2.) Same card and chipset, though.  --[[User:Rataxes|Rataxes]] 16:38, 15 September 2009 (EDT)
+
 
+
== KMS notes ==
+
KMS on r5xx not works with linux 2.6.31.3. only if libdrm, libgl, mesa, xf86-video-ati - all installed from git.
+

Revision as of 14:43, 26 November 2012

KMS -- do we have to do anything at all to enable it?

The KMS sections says it's on by default, should we even have to put radeon in MODULES any longer? If not, the intro to that section should probably mention that "you can skip the rest of this section if 'dmesg|grep modesetting' shows 'radeon kernel modesetting enabled'.

KMS Early

I don't know how others feel about this, but my preferred setup is to put options radeon modeset=1 in modprobe.conf and then to include modprobe.con along with the radeon module in mkinitcpio.conf. This way KMS is enabled once for both early and late start. Also, in the event of problems, radeon.modeset=1 can still be added as a kernel option to the bootloader. --piezoelectric

Enabling video acceleration

~/.bashrc is the wrong place for setting this environment variables. This file is not consulted when starting i.e. firefox from the gnome shell. As it is a hardware dependent setting that is reasonable for every user on this box, i created a file in /etc/profile.d/ to accomplish this.

Setting this variables makes a difference when using flashplayer for youtube videos. When set, flashplayer reports accelerated rendering enabled at home with my ati hd3200 onboard graphics and rendering is faster in full screen mode.

It works now no more worse than under windows.