[Openchrome-users] CN700 and DRI, XvMC

[Philipp Käser]

Hiyo,

On my MSI Fuzzy CN700 I do have the same problem -- Video
playback is locking up the machine if DRI+GLX is enabled
(SVN trunk from ca 4 months ago).

It seems to be something kernel related -- remote login
would not work; in some forum posts, a locking problem is
discussed.

However, I did not yet have the time to investigate in
more detail.

bye,
Philipp K?ser

> Hi,
>
> running opensuse 10.3 on a Via Epia CN1000 that has CN700. I got
> openchrome 2.9.0 from svn revision 425 and the configure, make, sudo
> make install went just fine. What I want to do is get DRI and XvMC
> working and have less CPU load. But this isn't quite working...
>
> The xorg.conf has (irrelevant sections removed):
>
> Section "Module"
> #  Load         "dri"
>   Load         "glx"
>   Load         "type1"
>   Load         "extmod"
>   Load         "dbe"
>   Load         "freetype"
>   Load         "v4l"
> EndSection
>
> Section "Device"
>   Driver       "openchrome"
>   Identifier   "Device[0]"
>   Screen       0
> EndSection
>
> Section "DRI"
>   Mode          0666
> EndSection
>
> However there are two problems, one is X crashing when trying to view
> some avi files. Digital TV works fine from Kaffeine, unless I try to
> switch on fullscreen - then X crashes, too. Perhaps an openchrome bug.
>
> The second problem is that rendering is "indirect", so perhaps something
> in the configuration is still wrong?
>
> jwagner at mini:~> glxinfo | grep direct
> direct rendering: No
> OpenGL renderer string: Mesa GLX Indirect
>
> So how can I get DRI? One thing I tried is add "dri" into xorg.conf
> Modules:
>
> Section "Module"
>   Load         "dri"
>   Load         "glx"
> EndSection
>
> However now when glxgears before without "dri" gave 135 FPS, after
> adding "dri" the rate is down to 66 FPS. With Device "vesa" instead of
> "openchrome" it is ~50 FPS, so DRI is nearly as bad as using vesa.
>
>
> And after "dri" actually the renderer is still indirect:
>
> jwagner at mini:~> glxinfo | grep direct
> direct rendering: No
> OpenGL renderer string: Mesa GLX Indirect
>
>
>
> Any ideas how to get direct rendering?
> And get XvMC really working as well?
>
> Is openchrome supposed to support direct rendering for CN700? Or?
>
>
> The via kernel module is loaded:
>
> jwagner at mini:~> lsmod | grep drm
> drm                    79636  2 via
> agpgart                35764  2 drm,via_agp
>
> and logs look fine
>
> jwagner at mini:~> less /var/log/Xorg.0.log
> X Window System Version 7.2.0
> Release Date: Wed Oct 24 14:18:36 UTC 2007
> ...
> (--) VIA(0): Chipset: "VM800/CN700/P4M800Pro"
> (--) VIA(0): Chipset revision: 0
> ...
> (--) VIA(0): Detected VIA VT3344 (VM800) - EPIA EN.
> ...
> drmOpenDevice: node name is /dev/dri/card0
> drmOpenDevice: open result is 7, (OK)
> drmOpenDevice: node name is /dev/dri/card0
> drmOpenDevice: open result is 7, (OK)
> drmOpenByBusid: Searching for BusID PCI:1:0:0
> drmOpenDevice: node name is /dev/dri/card0
> drmOpenDevice: open result is 7, (OK)
> drmOpenByBusid: drmOpenMinor returns 7
> drmOpenByBusid: drmGetBusid reports pci:0000:01:00.0
> (II) VIA(0): [drm] DRM interface version 1.3
> (II) VIA(0): [drm] created "via" driver at busid "PCI:1:0:0"
> (II) VIA(0): [drm] added 8192 byte SAREA at 0xdcc83000
> ...
> (II) VIA(0): [drm] Detected AGP vendor 0x1106, device 0x04314
> (II) VIA(0): [drm] Found AGP v3 compatible device. Trying AGP 8X mode.
> (II) VIA(0): [drm] Trying to enable AGP fast writes.
> (II) VIA(0): [drm] drmAgpEnabled succeeded
> ...
> (II) VIA(0): [Xv] Using PCI DMA for Xv image transfer.
> Fulfilled via DRI at 20976640
> ...
> (II) VIA(0): [XvMC] Registering chromeXvMC.
> (II) VIA(0): [XvMC] Initialized XvMC extension.
> ...
> (II) Loading local sub module "GLcore"
> (II) LoadModule: "GLcore"
> (II) Loading /usr/lib/xorg/modules//extensions/libGLcore.so
> (II) Module GLcore: vendor="X.Org Foundation"
>         compiled for 7.2.0, module version = 1.0.0
>         ABI class: X.Org Server Extension, version 0.3
> (II) GLX: Initialized MESA-PROXY GL provider for screen 0
> ...
>
>
> So it looks like DRI and XvMC are all there. But why does it perform
> nearly as poor as VESA? How to really get direct rendering?
>
>  - Jan
>
>
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