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ev56o
Apprentice
Joined: 26 Jan 2010
Posts: 180
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 Posted: Fri Nov 30, 2012 4:11 pm Post subject: |
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| I use open driver, of course, the ati driver closed is up to 2009 and can' t be compatible with the current kernel. |
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bandreabis
Advocate
Joined: 18 Feb 2005
Posts: 2490
Location: イタリアのロディで
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| Posted: Fri Nov 30, 2012 6:21 pm Post subject: |
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| ev56o wrote: | | I use open driver, of course, the ati driver closed is up to 2009 and can' t be compatible with the current kernel. |
Oh, ok!
ati-drivers are the closed ones, the open are xf86-avideo-ati. |
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s_bernstein
Apprentice
Joined: 11 Mar 2006
Posts: 172
Location: Bremen, Germany
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| Posted: Sat Dec 01, 2012 8:23 am Post subject: |
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So, after 2 days of reading and tweaking, I have a config, which will lead to a normal performance for a RV250. The following config bumped my card up about 200 fps in glxgears. Also, the sluggish desktop is gone, except for the gnome background fadein during login.
I had to add the following options to the xorg configuration:
| Code: |
Option "EnablePageFlip" "on"
Option "ColorTiling" "on"
Option "EXAPixmaps" "on"
Option "BackingStore" "on"
Option "AccelDFS" "on"
Option "MigrationHeuristic" "greedy"
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Some of these could lead to corruptions or freezes, so you have to try yourself. Some hints: ColorTiling is default for r300+ cards, but also works with r200 card. Should improve performance, but on r200 cards makes it worse without EXAPixmaps (?). A hint for who underclock the card - like me - you will probably need more minimum clock now. I had to go from 50MHz GPU clock to 80 MHz to kill occasionally corruptions.
Now I have to figure out, why suspend to ram will lead to a corrupt screen (all black textures) when suspend to disk works flawless.
EDIT:
So, now my suspend is working again. Had to manually set agpmode to 1. Funny thing is, despite switching from agpmode 4 down to 1 - which should be considerable slower - my framerate goes up another 200 fps now topping out just under 1200fps in glxgears with default clocking of 250/270.
So, after all, the open source radeon driver does work for old cards. It just needs days of reading and tweaking to get the performance. |
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ev56o
Apprentice
Joined: 26 Jan 2010
Posts: 180
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| Posted: Sat Dec 01, 2012 12:15 pm Post subject: |
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| I can t understand, do I have to copy that options in Xorg.conf? What about the kernel configuration? Everything about Kms must be built-in? reading in the forum it looks like someone can have prop ati driver working with the actual kernel, I have a radeon x300se is there a way for do it work? |
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ev56o
Apprentice
Joined: 26 Jan 2010
Posts: 180
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| Posted: Sun Dec 02, 2012 2:43 pm Post subject: |
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| Can we have some more help please? |
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VoidMage
Watchman
Joined: 14 Oct 2006
Posts: 6196
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| Posted: Sun Dec 02, 2012 5:04 pm Post subject: |
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| In regard of builtin vs module - things should work fine either way, just remember to have firmware compiled into kernel with builtin. |
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ev56o
Apprentice
Joined: 26 Jan 2010
Posts: 180
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| Posted: Sun Dec 02, 2012 7:21 pm Post subject: |
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Firmware? I don' t understand what firmware you mean?
The options above-mentioned must be in the Xotg.conf? |
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livibetter
n00b
Joined: 19 Apr 2009
Posts: 63
Location: Taipei, Taiwan
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| Posted: Sun Dec 02, 2012 8:11 pm Post subject: |
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| ev56o wrote: | Firmware? I don' t understand what firmware you mean?
The options above-mentioned must be in the Xotg.conf? |
Please at least read first half page of the link I posted in my previous post in this thread, the information is all in it for you to have a working X.
Just FYI, this thread is discussing about xf86-video-ati driver, if you are talking about old ATI driver, it's better to open a new thread, though I have no idea the old ATI driver can still run on latest X or not. |
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