Direct Rendering Infrastructure @ http://dri.sf.net

S3TC / Compressed textures :

http://homepage.hispeed.ch/rscheidegger/dri_experimental/s3tc_index.html

http://www.digit-life.com/articles/reviews3tcfxt1/

wget http://homepage.hispeed.ch/rscheidegger/dri_experimental/libtxc_dxtn050819.tar.gz

ed2k://|file|libtxc_dxtn050819.tar.gz|9950|c71a8a8cb775ea9cb774193ad90d557b|

cat « EOF » /etc/apt/sources.list

#{ [[3D]] : sudo apt-get install libtxc-dxtn
 deb http://emeitner.f2o.org/debian/ ./
 deb-src http://emeitner.f2o.org/debian/ ./
#} http://rzr.online.fr/q/DRI

EOF

Compile DRI @ http://dri.freedesktop.org/wiki/Download

mkdir -p /usr/local/src/tmp/dri
cd /usr/local/src/tmp/dri
cvs -z3 -d:pserver:anonymous@dri.freedesktop.org:/cvs/dri login && \
cvs -z3 -d:pserver:anonymous@dri.freedesktop.org:/cvs/dri co drm
cd drm && ./autogen.sh

Errors / DRI on [[AmiloA]]'s [[Radeon]] [[IGP 320M]] with [[Kernel]] 2.6

Supports DRI but conflicts on IRQs see DSDT.

dri module works along xorg 6.8.1 on Radeon IGP 320M … (at last

)

But, on my AmiloA there are still IRQ problems.

When I start XWindow with dri, there's a system freeze (I didn't try to reach my computer via SSH, though).

I order to manage to start X, I need to unactivate some modules that use IRQ #11.

For information, here is my default IRQ after system start :

cat /proc/interrupts
         [[CPU]]0
0:   11814031          XT-PIC  timer
1:      37033          XT-PIC  i8042
2:          0          XT-PIC  cascade
5:          2          XT-PIC  ohci1394
9:          0          XT-PIC  acpi
10:          0          XT-PIC  ohci_hcd
11:      84447          XT-PIC  ohci_hcd, yenta, yenta, eth0, ALI 5451
12:     281295          XT-PIC  i8042
14:     110926          XT-PIC  ide0
15:     123694          XT-PIC  ide1

IRQ #11 is quite crowded

But I managed to start X without freeze after a reboot without sound modules being “modprobed” :

         CPU0
0:   11814031          XT-PIC  timer
1:      37033          XT-PIC  i8042
2:          0          XT-PIC  cascade
5:          2          XT-PIC  ohci1394
9:          0          XT-PIC  acpi
10:          0          XT-PIC  ohci_hcd
11:      84447          XT-PIC  ohci_hcd, yenta, yenta, eth0
12:     281295          XT-PIC  i8042
14:     110926          XT-PIC  ide0
15:     123694          XT-PIC  ide1

This way, X starts with dri activated, and it works

But when X starts, I get the following kernel message : Disactivating irq #11, and then eth0 no longer works. No enemy-territory playing on the net for me yet

As IRQ #11 gets disactivated, I believe that one or two of the usb ports no longer work (I didn't check), and that PCMCIA doesn't work neither (I don't have PCMCIA cards). And no sound, since I disactivated it myself…

But 3D acceleration works

Some times later, I have managed to get also sound, booting with the “acpi_irq_balance” kernel option, which puts the ALI M5451 module at IRQ #10 :

         CPU0
0:   11814031          XT-PIC  timer
1:      37033          XT-PIC  i8042
2:          0          XT-PIC  cascade
5:          2          XT-PIC  ohci1394
9:          0          XT-PIC  acpi
10:          0          XT-PIC  ohci_hcd, ALI 5451
11:      84447          XT-PIC  ohci_hcd, yenta, yenta, eth0
12:     281295          XT-PIC  i8042
14:     110926          XT-PIC  ide0
15:     123694          XT-PIC  ide1

I tried to recompile the radeon kernel module without IRQ sharing, but 3D applications segfault.

I don't know X enough to be able to find how to solve the irq problem.

I believe that DRI doesn't really need an IRQ in most cases, because after the “Disactivation irq #11” Kernel message, 3D acceleration still works

Mistakes : libGL error: failed to open DRM: Operation not permitted

glxinfo
# name of display: :0.0
# libGL error: failed to open DRM: Operation not permitted
# libGL error: reverting to (slow) indirect rendering
# display: :0  screen: 0
# direct rendering: No

http://www.sh.nu/lgfaq/#drmperms

Section "DRI"
    Mode     0666
EndSection

$ glxinfo
name of display: :0.0
libGL warning: 3D driver returned no fbconfigs.
libGL error: InitDriver failed
libGL error: reverting to (slow) indirect rendering
display: :0  screen: 0
direct rendering: No

error : radeon_dri.so

@tag: radeon_dri

LIBGL_DEBUG=debug glxinfo name of display: :0.0 libGL error: dlopen /usr/lib/dri/radeon_dri.so failed (/usr/lib/dri/radeon_dri.so: cannot open shared object file: No such file or directory) libGL error: unable to load driver: radeon_dri.so display: :0 screen: 0 direct rendering: No (If you want to find out why, try setting LIBGL_DEBUG=verbose) ...

aptitude install libgl1-mesa-dri

worked for me on debian

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dri.txt · Last modified: 2020/04/20 18:22 (external edit)
 
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