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My Content
2 Jan 2009
Just started zUbuntu on SL-C760. Some error messages are shown when booting:

/usr/sbin/alsactl: load_state:1313: Cannot open /var/lib/alsa/asound.state for reading: No such file or directory
/usr/sbin/alsactl1: save_state:1251: No soundcards found...
Can't open display: 0

Logging in as root is possible. Starting Xserver with startx works, but the screen is rotated (portrait) and the stylus has got problems.
Mouse arrow and stylus are not in sync, and clicking is not possible. The Xserver shows the following messages:

Extended Input Devices not yet supported. Implement it at line 637 in kinput.c
Audit; Thu Jan 1 00:17:21 1970: 1393 X: client 4 rejected from local host (uid:65534)
selected device is not a touchscreen I understand

Any idea how to fix these issues?

9 Oct 2004
What compile option(s) must be added to make sure vector floating point library is used? I've tried using the options "-mcpu=xscale -Wa,-mfpu=softvfp", but this did not result in a performance boost.
23 Apr 2004

On the following site I read about several ARM specific kernel optimisations:


Some comment refers to the XScale PXA255 (which is in the 760 and 860). For example:

> [ARM PATCH] 1363/1: memcpy with preload support and other
> optimisations
> Patch from Nicolas Pitre
> This improves on what I did with patch #1362/1 by adding preloads
> for architectures that support it. On an XScale PXA255 this provides
> a 20% performance gain.

I believe the Zaurus ROMs are currently using the 2.4.18 kernel.
Is it possible to include some of those patches in for example the pdaX ROM? A 20% performance increase is a lot biggrin.gif.
26 Mar 2004
Setup of Hatari for X11/PDA ROM available on:


Hatari is an Atari ST emulator :wink:
7 Jan 2004
I have just compiled an Atari ST emulator called Hatari on a Zaurus SL-C760. I have already been able to run several Atari ST games (e.g. Xenon II, Speedball, Wings of Death, Super Wonderboy and IK+) and some applications.

At the moment I am trying to solve a problem with the Atari mouse, and to increase the performance. Most games can not be played with sound or full screen because the performance of the Zaurus is not sufficient. That's why I'd like to have a look at the ARM options of the gcc compiler:

ARM Options -mapcs-frame -mno-apcs-frame -mapcs-26 -mapcs-32 -mapcs-stack-check -mno-apcs-stack-check -mapcs-float -mno-apcs-float -mapcs-reentrant -mno-apcs-reentrant -msched-prolog -mno-sched-prolog -mlittle-endian -mbig-endian -mwords-little-endian -malignment-traps -mno-alignment-traps -msoft-float -mhard-float -mfpe -mthumb-interwork -mno-thumb-interwork -mcpu=name -march=name -mfpe=name -mstructure-size-boundary=n -mabort-on-noreturn -mlong-calls -mno-long-calls -msingle-pic-base -mno-single-pic-base -mpic-register=reg -mnop-fun-dllimport -mpoke-function-name -mthumb -marm -mtpcs-frame -mtpcs-leaf-frame -mcaller-super-interworking -mcallee-super-interworking

Does anyone has any experience with using these options on a SL-C7x0? What option may boost the performance of an emulator a little bit?
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