RE: [Linux-fbdev-users] Sony Vaio laptop with i815 video card

[Parson L. (NHQ-AC) <Par...@CS...>]

>> I proceeded with the same command as before. "fbset -g 800 600 800 600 8"
>> but then received "ioctl FBIOPUT_VSCREENINFO: Invalid argument".  I then
>> noticed that I was in 4bpp.  Therefore I tried "fbset -g 800 600 800 600
4"
>> and then this worked.  

>Sounds like you went from the VESA framebuffer to the vga16 framebuffer.
>Can you do a cat /proc/fb and tell us what you see.


Yes I have went to VGA16.  I tried recompiled my kernel and enabled
everything BUT VGA16, but then I had no more FB support.  Also, enabling
everything still gives me VGA16.  I find this very strange that with
Slack7.1 I could obtain more colors then with Slack8.  

Here are a few things that I have copied:

root@laptop:~# dmesg | grep agpgart
Linux agpgart interface v0.99 (c) Jeff Hartmann
agpgart: Maximum main memory to use for agp memory: 93M
agpgart: agpgart: Detected an Intel i815 Chipset.
agpgart: detected 4MB dedicated video ram.
agpgart: AGP aperture is 64M @ 0xf8000000


root@laptop:/proc# cat fb
0 VGA16 VGA


root@laptop:~# fbset -i

mode "832x620-38"
    # D: 25.176 MHz, H: 25.379 kHz, V: 37.935 Hz
    geometry 832 620 832 620 4
    timings 39721 48 16 39 8 96 2
    rgba 6/0,6/0,6/0,0/0
endmode

Frame buffer device information:
    Name        : VGA16 VGA
    Address     : 0xa0000
    Size        : 65536
    Type        : VGA 16 colors in 4 planes
    Visual      : PSEUDOCOLOR
    XPanStep    : 8
    YPanStep    : 1
    YWrapStep   : 0
    LineLength  : 104
    Accelerator : No

Thanks,

Luc P.