Re: [Ltib] LPC3250 board, X server fault: Invalid argument

[Dmitry Vinokurov]

Hi Stuart,

I have touchscreen and tslib is enabled. Tried to build without tslib -- 
same result: running 'Xfbdev -nolisten tcp' with or without tslib gave 
same result:
/*
address@hidden /root]# Xfbdev -nolisten tcp
Warning: mode not found, using default
error: Invalid argument

Fatal server error:
no screens found
*/

Executing 'Xfbdev -nolisten tcp -ac -mouse mouse -keybd keyboard -screen 
240x320x32' gave same error too.

Nodes /dev/fb* I've checked -- they exist and terminal (non-X) output to 
the touchscreen works fine.

--
Best Regards, 
Dmitry Vinokurov 
<address@hidden>



Stuart Hughes wrote:
> Hi Dmitry,
>
> Another thing to check is that if you don't have touch-screen that 
> 'tslib' is disabled in the configuration.  If tslib is enabled it 
> throws a switch in the xorg-server spec file.  This may explain the 
> invalid argument.
>
> Try running Xfbdev -nolisten tcp with no other args, the server is 
> supposed to be able to probe and find defaults.
>
> Also check that you really have a /dev/fb* device node present.
>
> Regards, Stuart
>
> Dmitry Vinokurov wrote:
> > Same error:
> > /*
> > address@hidden /root]# Xfbdev -nolisten tcp -ac -mouse mouse -keybd 
> > keyboard -screen 240x320x32
> > error: Invalid argument
> >
> > Fatal server error:
> > no screens found
> > */
> >
> > Tried 320x240 and 24 bpp -- same result.
> >
> > Kernel was built with FB suppord -- while loading, linux perfectly 
> > writes boot messages on the screen and color Tux is shown there :)
> >
> > --
> > Best Regards, Dmitry Vinokurov <address@hidden>
> >
> >
> >
> > Daniel Widyanto wrote:
> > > Hi,
> > >
> > > It seems like you don't pass the screen parameter to Xfbdev (it 
> > > needs the screen resolution and bpp mode)
> > > # Xfbdev -nolisten tcp -ac -mouse mouse -keybd keyboard -screen 
> > > 240x320x32
> > >
> > > Refer to: http://www.xfree86.org/current/TinyX.1.html
> > >
> > > -daniel
> > >
> > >
> > > -----Original Message-----
> > > From: address@hidden 
> > > [mailto:address@hidden On Behalf 
> > > Of Stuart Hughes
> > > Sent: Wednesday, July 29, 2009 4:00 PM
> > > To: Dmitry Vinokurov
> > > Cc: address@hidden
> > > Subject: Re: [Ltib] LPC3250 board, X server fault: Invalid argument
> > >
> > > Hi Dmitry,
> > >
> > > It's a guess but it looks as though your board has not been built 
> > > with frame buffer support in the kernel.
> > >
> > > I'm not sure about the mode error.  The only platform I've run on 
> > > are an old MAC G4 box using.
> > >
> > > Regards, Stuart
> > >
> > >   
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