2.5 and neomagic framebuffer problem

Jaakko Niemi (liiwi@lonesom.pp.fi)
Wed, 25 Jun 2003 18:03:19 +0300


Hi,

With 2.5 and neomagic framebuffer on my thinkpad 570e, if
I do something that outputs a lot of text to the screen
(dmesg for example), I get what could be called as 'colourful
static' for either full or lower one third of the screen.
Switching to another vt and back restores the normal screen.
With 2.4 I cannot reproduce this.

Not sure if it's related, but while editing with any editor,
sometimes the typed in text comes out on to the line above
the one that is being edited, two characters ahead. Again,
this does not happen with 2.4 kernels.

Driver is compiled into the kernel and output for 2.4.22-pre:

neofb: mapped io at cc800000
Panel is a 1024x768 color TFT display
neofb: mapped framebuffer at cca01000
neofb v0.3.2: 2560kB VRAM, using 1024x768, 48.361kHz, 60Hz
Console: switching to colour frame buffer device 128x48
fb0: MagicGraph 256AV frame buffer device

and 2.5.73:

neofb: mapped io at cc80b000
Autodetected internal display
Panel is a 1024x768 color TFT display
neofb: mapped framebuffer at cca0c000
neofb v0.4.1: 2560kB VRAM, using 1024x768, 48.361kHz, 60Hz
fb0: MagicGraph 256AV frame buffer device
Console: switching to colour frame buffer device 128x48

Any ideas?

--j
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