Re: No 3D on iBook G4
On Don, 2013-11-21 at 01:16 -0200, Rogério Brito wrote:
>
> I mainly need only to play videos (like lectures from Coursera and
> other MOOC initiatives) and, honestly, I don't really care for 3D
> graphics, but the video players that I tried seem to do (especially
> when they choose an opengl backend).
FWIW, it's definitely recommended to use XVideo over OpenGL for video
playback on Apple PPC laptops.
> Anyway, with my current setup, I don't get any kind of OpenGL and I
> have provided a "snapshot" of how things are configured in my system
> at:
>
> http://www.ime.usp.br/~rbrito/linux/debug-r300/1385003057-g4-linux-3.12-trunk-powerpc.tar.xz
Looks like OpenGL is disabled due to the problem described in:
https://lists.debian.org/debian-powerpc/2013/11/msg00045.html
https://bugs.freedesktop.org/show_bug.cgi?id=71789
Someone will need to investigate this upstream in Mesa.
> After struggling a lot, I could get mplayer/mpv/vlc to play some
> videos if I force XV to be used as the video backend, but, with mpv, I
> get the following message:
>
> [vo/xv] X11 can't keep up! Waiting for XShm completion events...
This looks like it just can't keep with decoding / displaying the video
in realtime.
> While this is obviously based on impressions, the whole system feels
> like everything is so slooooow regarding to graphics. :(
One likely reason for the slowness is that you're disabling AGP with
radeon.agpmode=-1. If your iBook isn't stable with the default AGP mode,
try radeon.agpmode=1 or the other values.
> Also, not really sure if things are connected to this graphics thing
> or not, with Iceweasel 17, I can use things OK, but with Icewease 24,
> I simply get a segfault right at the start. Reverting back to version
> 17 makes it work again. Going back to version 24 makes it segfault
> again. And so on. (Yes, everything with both clean and unclean
> profiles).
>
> I am now, BTW, using qupzilla for posting this (via gmail). :)
>
> I suspect that newer versions of Iceweasel may be using something
> related to WebGL and causing a crash?
Not necessarily WebGL, but it might be related to OpenGL, yes. One would
need to look at a backtrace of a crash to tell though.
--
Earthling Michel Dänzer | http://www.amd.com
Libre software enthusiast | Mesa and X developer
Reply to: