Kdrive problem

Raffaele BELARDI raffaele.belardi at st.com
Sun Oct 18 23:09:18 PDT 2009


haitham akah wrote:
> I have an ARM9 embedded kit with built-in LCD controller.
> if compiled the kernel with FreamBuffer enabled and Graphical console enabled. I get the Linux logo on my LCD and the console is connected to the /dev/fb0.
> 
> but when I try to start the x server (startx)
> I get this error:
> FBIOPUT_VSCREENINFO: Invalid argument
> 
> I even tryed: Xfbdev -screen 320x240 . but I got the same result.

On a similar setup I had to modify hw/kdrive/src/kmode.c and recompile
Xfbdev to add support for my LCD resolution(420x272):

    /* Cartesio CLCD  Samsung LTE430WQ-F0C, WQVGA Landscape (480x272) */
    {   480,    272,    163,    25000,
                    10,     10,     10,     KdSyncNegative, /* FP, BP
and BLANK are dummy values */
                    10,     10,     10,     KdSyncNegative, /* FP, BP
and BLANK are dummy values */
    },

Without this I had a similar error as yours.

raffaele



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