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nibiru
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Joined: 09 Jun 2005
Posts: 38
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 Posted: Fri Mar 24, 2006 10:55 am Post subject: DRI (modular-X) on IBook G4... what works and what does not |
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After some time (and debug) I managed to have both audio and DRI working on my IBook G4.
I'm using kernel 2.6.16-gentoo, DRI seems to work (I get "only" 937 fps on glxgears), but VTs seem to have died.
I can't change to terminals anymore, ctrl + alt + Fx just gives me a blank screen. Indee I can return to KDE with F7, as usual.
Also MOL doesn't show any graphics...
Someone got it working? Any hints for this behaviour?
Regards. |
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JoseJX
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Joined: 28 Apr 2002
Posts: 2774
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thouters
n00b
Joined: 14 Sep 2005
Posts: 20
Location: Belgium
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| Posted: Fri Mar 24, 2006 7:21 pm Post subject: |
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Hi, I just emerged modular X on my iBook G4, what did you do to get dri working?
I get errors (for X = 0 to 255) like this one:
drmOpenDevice: node name is /dev/dri/cardX
drmOpenDevice: open result is -1, (No such device)
drmOpenDevice: open result is -1, (No such device)
Is there a special kernel driver needed, or mesa (I'm using the mesa ebuild form portage).
Tia |
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thouters
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Joined: 14 Sep 2005
Posts: 20
Location: Belgium
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| Posted: Fri Mar 24, 2006 11:08 pm Post subject: |
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Update: I loaded uninorth-agp.
Agp is now enabled but fast writes seem to be disabled from the looks of the Xorg.0.log.
I get 417 at best when I run glxgears. glxinfo says that direct rendering is enabled. |
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nibiru
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Joined: 09 Jun 2005
Posts: 38
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| Posted: Sat Mar 25, 2006 7:33 am Post subject: |
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| JoseJX wrote: | | Are you using bootsplash? There are known issues with that combination. |
No, just text.
I'm using bootlogo... does it matter?
Thanks. |
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nibiru
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Joined: 09 Jun 2005
Posts: 38
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| Posted: Sat Mar 25, 2006 7:35 am Post subject: |
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| thouters wrote: | Update: I loaded uninorth-agp.
Agp is now enabled but fast writes seem to be disabled from the looks of the Xorg.0.log.
I get 417 at best when I run glxgears. glxinfo says that direct rendering is enabled. |
Don't remember about fast writes.
In order to get DRI work, I had to:
- Load agpgart and uninorth as modules (no way if inserted into kernel)
- Change the reference to OpenGL libraries (ie glx looks for them elsewhere, not where stated in the guide of the forum).
What iBook model is yours?
Mine is the latest one, 12 inches (I bought it some weeek ago). |
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Cenrim
Tux's lil' helper
Joined: 04 Dec 2004
Posts: 142
Location: Germany
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| Posted: Sat Mar 25, 2006 12:06 pm Post subject: |
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enabling page flip in xorg.conf made a nice performance boost for me (iBook G4 1.2GHz, feb 2005)
| Code: | Section "Device"
Identifier "[radeon]"
Driver "radeon"
# ChipID 0x5c63 <- Radeon Mobility 9200 (AGP)
Option "AGPMode" "4"
Option "EnablePageFlip" "True"
Option "Accel" "True"
Option "RenderAccel" "on"
# Option "AllowGLXWithComposite" "true" # got composite disabled, so this would only give me a warning
Screen 0
EndSection |
and by using /etc/modules.autoload.d/kernel-2.6 you can make sure the modules are loaded (in the right order) before X is started
| Code: | $ cat /etc/modules.autoload.d/kernel-2.6
# /etc/modules.autoload.d/kernel-2.6: kernel modules to load when system boots.
#
# Note that this file is for 2.6 kernels.
#
# Add the names of modules that you'd like to load when the system
# starts into this file, one per line. Comments begin with # and
# are ignored. Read man modules.autoload for additional details.
# For example:
# 3c59x
agpgart
uninorth_agp
drm
radeon |
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thouters
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Joined: 14 Sep 2005
Posts: 20
Location: Belgium
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| Posted: Sat Mar 25, 2006 1:18 pm Post subject: |
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I have the modules loaded correctly, and pageflip enabled (the xorg config posted here matches).
I'm using an iBook G4 (bought new in september '05): PowerBook6,7
I'm using modular X (regular), mesa ebuild from breakmygentoo (i think) 6.4.3_alpha20060216
xf86-video-ati from cvs (yeah I guess the normal ebuild should have been just fine but I confused that package for mesa)
Xorg.0.log says:
(II) RADEON(0): Render acceleration unsupported on Radeon 9500/9700 and newer.
(II) RADEON(0): Render acceleration disabled
but then also
(II) RADEON(0): [drm] dma control initialized, using IRQ 48
(II) RADEON(0): [drm] Initialized kernel GART heap manager, 5111808
(II) RADEON(0): Direct rendering enabled
Any ideas? |
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Cenrim
Tux's lil' helper
Joined: 04 Dec 2004
Posts: 142
Location: Germany
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| Posted: Sat Mar 25, 2006 1:36 pm Post subject: |
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maybe you should try the r300-driver..
it should support newer chips, but I'm not sure were this starts.. radeon 9500? 9600?
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thouters
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Joined: 14 Sep 2005
Posts: 20
Location: Belgium
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| Posted: Sat Mar 25, 2006 2:49 pm Post subject: |
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where do I find this r300 driver?
I read on the r300.sf.net page that development moved to the Xorg cvs tree, and (did JoseJX tell me?)
that the r300.sf.net code moved to the mesa and video-ati packages.
Judging by the looks of the folowing message in the X log:
*** Direct rendering support is highly experimental for Radeon 9500
*** and newer cards. The 3d mesa driver is not provided in this tree.
*** A very experimental (and incomplete) version is available from Mesa CVS.
*** Additional information can be found on http://r300.sourceforge.net
*** This message has been last modified on 2005-08-07.
Direct rendering is kinda neat, looking forward to having it running  |
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Cenrim
Tux's lil' helper
Joined: 04 Dec 2004
Posts: 142
Location: Germany
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| Posted: Sat Mar 25, 2006 6:04 pm Post subject: |
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maybe it's already included in xorg-x11 or x11-drm with VIDEO_CARDS="ati"?
*checked /lib/modules/2.6.15-gentoo-r7/x11-drm/*
hm, well not now, it will be someday ^^
but isn't there a thread about this?
..brb...
EDIT:
from here:
| JoseJX wrote: | | It's already included in the radeon driver with modular X, but some people are currently having trouble with the current radeon driver on Macs. The fixes are already in CVS afaik, but haven't yet been added to portage. The drivers themselves are adequate for most 3D tasks now and support has been improving rapidly. |
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JoseJX
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Cenrim
Tux's lil' helper
Joined: 04 Dec 2004
Posts: 142
Location: Germany
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| Posted: Sun Mar 26, 2006 6:43 am Post subject: |
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I meant the "It's already included in the radeon driver with modular X" and "The drivers themselves are adequate for most 3D tasks now and support has been improving rapidly."-parts, not the issues .
sorry for the inaccuracy
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nibiru
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Joined: 09 Jun 2005
Posts: 38
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| Posted: Sun Mar 26, 2006 9:08 am Post subject: |
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| JoseJX wrote: | | The issues I mentioned in that post have been fixed recently. |
Sorry do you mean issues with the bootsplash, or (mine) issues with VTs?
Should I recompile the driver?
I add this: sometimes not even kdm starts at boot (ie blank screen). I have to switch to a (blank...) terminal (eg ctrl + alt + F1) and then back to X (ctrl+alt+F7) to get the video again.
Regards.
EDIT: I've also noticed that pbbuttons has lost its brightness facility...
I tried gtkpbbuttons, while volume works ok, brightness is stuck at a value of 0 (well, so it reports at least, but I'd say it is at maximum). No way to lower or raise it, even with pbbcmd.
Does it depend on DRI and radeon modules?? |
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JoseJX
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Joined: 28 Apr 2002
Posts: 2774
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| Posted: Sun Mar 26, 2006 2:15 pm Post subject: |
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No, I mean the lockups that Cenrim quoted.
If your brightness isn't working, you're either using the wrong framebuffer (make sure you're using radeonfb instead of offb) or perhaps you've forgotten to include backlight support in your kernel? There is a radeon i2c driver as well as generic backlight support, both might be missing.
pbbuttonsd does not depend on DRM for this functionality.
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nibiru
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Joined: 09 Jun 2005
Posts: 38
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| Posted: Sun Mar 26, 2006 5:38 pm Post subject: |
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| JoseJX wrote: | No, I mean the lockups that Cenrim quoted.
If your brightness isn't working, you're either using the wrong framebuffer (make sure you're using radeonfb instead of offb) or perhaps you've forgotten to include backlight support in your kernel? There is a radeon i2c driver as well as generic backlight support, both might be missing.
pbbuttonsd does not depend on DRM for this functionality. |
I have bl support, don't know what's happenned. Backlight still works under OSX, no more under linux... I even tried to put back last kernels 2.6.15-gentoo and 2.6.14, which had it working.
What could it be? I even uninstalled and reemerged pbbuttonsd, but this gave no results 
EDIT:
I found I had to completely remove the openfw framebuffer and leave the radeon one. Now both troubles have gone (ie the retroillumination issue and the blank terminals).
This doesn't explain to me why it was working before... since the kernel and yaboot config were exactly the same, with both of and radeon enabled! 
Maybe somehow yaboot was choosing the radeonfb instead of OF... weird. 
Thank you again for the hint! |
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