Bug#342053: DirectFrameBuffer crashes on PPC systems if HW accelerated drivers are used
On Fri, Sep 22, 2006 at 09:37:28AM +0200, Attilio Fiandrotti wrote:
> Last times the g-i was tested on PPC, it turned tout that
>
> Known good : radeonfb, vesafb (or whatever x86 uses).
> Known bad : atyfb, nvidiafb
>
> when acceleration was enabled.
> But that was with GTKDFB 2.0.9 and DFB 0.9.22, while now we have DFB
> 0.9.25 and GTK 2.8.20 and many bugs got fixed.
> This is the most serious bug affecting g-i on PPC, and i wasn't able to
> fix it because i have no PPC HW.
> Sven, do you think can give the PPC g-i a try? i will help you on
> debugging it as much as i can.
Ok, i gave a quick test, and discovered the following :
(hardware is a pegasos machine, with radeon 9250 graphic card).
I did a plain g-i from unstable build, and netbooted the vmlinuz-chrp.initrd
file.
It booted nicely, but ended up in a blue screen, i suppose these are the
symptoms of the crash.
I thus rebuilt the installer with adding :
no-hardware
screenshot-dir=/ (is this one still needed ?)
to /etc/directfbrc, as explained in a post from december 2005 in this bug
report.
This one booted fine, and the only problem i could see, is shown in the
following picture :
http://people.debian.org/~luther/languagechooser_language-name_0.png
As you can see, there is a white space where the selection should be, this
works fine when you use the mouse to point on stuff, but using up/down arrow
keys exhibits this behaviour rather consistently.
The last issue i saw when going to the consoles with ctr+alt+Fn to
investigate a bit. The console font is garbagy, but this is probably a bug
in either the radeonfb driver, or the enter/leave-VT functions of directfb.
When you kill the X server from the console, this happens also.
Ok, that is all for now, i will propose a patch later on which always enables
no-hardware on powerpc, so we can at least get some testing done, and then
would be happy to do some more advanced debuging to tackle the bug and/or also
the console font issue.
Friendly,
Sven Luther
>
> Attilio
>
>
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