Hello
I tried using the framebuffer console with matroxfb on a 2.6 kernel and
I see only reddish pattern on the screen. I do not get any letters.
However, I can run X with UseFBdev option and a directfb program.
I can also use the fbcons on an iMac with atifb.
Tested with 2.6.7, with 2.6.8.1 I still do not get usable fbcons.
THe hardware is G400 and G550.
Thanks
Michal Suchanek
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On Wednesday 15 September 2004 14:09, Michal 'hramrach' Suchanek wrote:
Hello
I tried using the framebuffer console with matroxfb on a 2.6 kernel and
I see only reddish pattern on the screen. I do not get any letters.
However, I can run X with UseFBdev option and a directfb program.
I can also use the fbcons on an iMac with atifb.
Tested with 2.6.7, with 2.6.8.1 I still do not get usable fbcons.
THe hardware is G400 and G550.
In matroxfb_accel.c:matroxfb_imageblit(), try changing this line:
if (image->depth == 0)
to
if (image->depth == 1)
Tony
Thanks
Michal Suchanek
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On Wed, Sep 15, 2004 at 09:11:49PM +0800, Antonino A. Daplas wrote:
In matroxfb_accel.c:matroxfb_imageblit(), try changing this line:
if (image->depth == 0)
to
if (image->depth == 1)
May I ask what this change is suposed to do?
As already explained the driver works if compiled into kernel as opposed
to loading it as a module. This change seems too small to fix module
loading :)
Thanks
Michal Suchanek
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On Thursday 16 September 2004 19:42, Michal 'hramrach' Suchanek wrote:
On Wed, Sep 15, 2004 at 09:11:49PM +0800, Antonino A. Daplas wrote:
quoted
In matroxfb_accel.c:matroxfb_imageblit(), try changing this line:
if (image->depth == 0)
to
if (image->depth == 1)
May I ask what this change is suposed to do?
Because image->depth will never be equal to 0. (The use of image->depth == 0
is long gone). Anyway, this will not explain why you don't have a console,
so my mistake. However, matroxfb will always default to
unaccelerated imageblit with this test. (Is matroxfb_imageblit broken?) To
use matroxfb's accelerated imageblit routine the test must be changed to
if (image->depth == 1)
Try changing it and compare the time with 'time cat /usr/src/linux/MAINTAINERS'
with and without that minor change.
(Petr, this is probably the reason why copyarea is always fast with your
driver. Most of the time, I find that imageblit > copyarea if y-pan is
disabled, copyarea > imageblit if y-pan is enabled, and imageblit > copyarea
if acceleration is disabled, whether y-pan is enabled or not.)
As already explained the driver works if compiled into kernel as opposed
to loading it as a module. This change seems too small to fix module
loading :)
This particular problem (xxxfb == module and fb console != module resulting
to no console) is not specific to matroxfb. This bug/regression should be
fixed in 2.6.9-rc2 or 2.6.9-rc1-mm5.
Tony
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