vertical stripes under OpenFirmware and offb

vertical stripes under OpenFirmware and offb

[Boris Bezlaj]

Hello,

could anyone explain what kind of misconfiguration of framebuffer in OpenFirmware
or in general would cause the vertical stripes effect? White stripes, width about the
same as the width of characters and some garbage pixels between lines on black background.
If the white stripes would stick together, the screen with letters would look in order.

AFAIK, OF doesn't initialize the video card (IMS TT 128mb8) and i get the same under
offb driver(unless i use the hacked version of imsttfb).

In what should i look into to fix that? I have the documentation for TVP3030 ramdac.

-- 

  Boris


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Re: vertical stripes under OpenFirmware and offb

[James Simmons]

> Hello,
> 
> could anyone explain what kind of misconfiguration of framebuffer in OpenFirmware
> or in general would cause the vertical stripes effect? White stripes, width about the
> same as the width of characters and some garbage pixels between lines on black background.
> If the white stripes would stick together, the screen with letters would look in order.

Which kernel are you using? What is configuration?
 
> AFAIK, OF doesn't initialize the video card (IMS TT 128mb8) and i get the same under
> offb driver(unless i use the hacked version of imsttfb).
> 
> In what should i look into to fix that? I have the documentation for TVP3030 ramdac.

A IMS card user. Could you try out the imsttfb driver as well. I liek to 
know how well it works in 2.5.X.




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Re: vertical stripes under OpenFirmware and offb

[Boris Bezlaj]

On Wed, Apr 02, 2003 at 11:12:45PM +0100, James Simmons wrote:
> 
> > could anyone explain what kind of misconfiguration of framebuffer in OpenFirmware
> > or in general would cause the vertical stripes effect? White stripes, width about the
> > same as the width of characters and some garbage pixels between lines on black background.
> > If the white stripes would stick together, the screen with letters would look in order.
> 
> Which kernel are you using? What is configuration?
>  
Stock 2.4 kernels with video=imsttfb:vmode:12 boot parameters. I need to
modify the DAC type detection for the IMS to work properly..original
wrongly detects IBM ramdac.. PCI ID's are used wrongly i suppose.

Otherwise if i use offb i get the above mentioned effects as OF does not
initialize the dac..so i belive.

OF device node: IMS,tt128mb8

lspci output:
01:0f.0 Class 0380: 10e0:9128 (rev 01)
        Flags: bus master, medium devsel, latency 32, IRQ 29
        Memory at 90000000 (32-bit, prefetchable) [size=16M]
        Expansion ROM at 92000000 [disabled] [size=64K]

ON CHIP INFO:

IMS TT 128M8 rev 3.6

Chip: Twin Turbo 128+
I2C 0174
IMS 9130 <-- note: PCI ID says 9128
NNM 9644 (two triangles on end..)
WE 15680
MALAYSIA

DAC chip: VIDEO ( TexasInstruments logo)
TVP 3030
-220PPA
6049027  69AE20W

> A IMS card user. Could you try out the imsttfb driver as well. I liek to 
> know how well it works in 2.5.X.

I promise i will 8) As soon as i get it to compile/boot properly.

And thanks for looking after the driver..the meintainer seems to be on a
very looong vacations :(

-- 

  Boris


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Re: vertical stripes under OpenFirmware and offb

[Benjamin Herrenschmidt]

On Sun, 2003-04-06 at 20:34, Boris Bezlaj wrote:

> And thanks for looking after the driver..the meintainer seems to be on a
> very looong vacations :(

I don't think there's any maintainer for this driver. Any patch
fixing this appreciated :)


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Re: vertical stripes under OpenFirmware and offb

[Boris Bezlaj]

On Mon, Apr 07, 2003 at 02:15:47AM +0200, Benjamin Herrenschmidt wrote:
> On Sun, 2003-04-06 at 20:34, Boris Bezlaj wrote:
> 
> > And thanks for looking after the driver..the meintainer seems to be on a
> > very looong vacations :(
> 
> I don't think there's any maintainer for this driver. Any patch
> fixing this appreciated :)

I will try to add/fix detection of 9130 type of card..i don't know how
since the pci ID is the same as for 9128..maybe with the help of OF.

But first i must get 2.5.x up and running :)

BTW, i heard there were problems with cursor under 2.4...anything like
getting different colors of cursor on every console?

-- 

  Boris


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Re: vertical stripes under OpenFirmware and offb

[Benjamin Herrenschmidt]

On Mon, 2003-04-07 at 22:42, Boris Bezlaj wrote:

> BTW, i heard there were problems with cursor under 2.4...anything like
> getting different colors of cursor on every console?

I think console cursor color is fairly random in anything but 8 bpp
in 2.4, at least it is black for me

Ben.




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Re: vertical stripes under OpenFirmware and offb

[Boris Bezlaj]

On Wed, Apr 02, 2003 at 11:12:45PM +0100, James Simmons wrote:
> 
> A IMS card user. Could you try out the imsttfb driver as well. I liek to 
> know how well it works in 2.5.X.
> 
Tried 2.5.67 with fbdev patch..it displays the logo and boot messages till
bottom of the screen(time to scroll the text?), then hangs.

With console on ttyS0, the kernel seems to boot fine..

I didn't include ADB keyboard(compile problem)..could this be a problem
to the console susbystem? (highly unlikely, but i had to ask just in
case :)

BTW, what tool could i use to test the fb itself? (besides the mace :)

-- 

  Boris


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Re: vertical stripes under OpenFirmware and offb

[Geert Uytterhoeven]

On Wed, 9 Apr 2003, Boris Bezlaj wrote:
> BTW, what tool could i use to test the fb itself? (besides the mace :)

`fbtest', from linux-fbdev CVS on Sourceforge.

Gr{oetje,eeting}s,

						Geert

--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@linux-m68k.org

In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
							    -- Linus Torvalds



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