Hello,
Obviously this isn't *directly* a DirectFB problem I'm experience,
however I'm hoping someone here might have a solution to my problem.
I have a VIA EPIA board. It has a built in Trident graphics adapter. The
problem I'm having is that when I try to get it to run, the lcd OSD
throws up an error message about 'Out Of Range', sometimes blanking the
screen, sometimes not.
I have developed a DirectFB application running on a RHEL 3 (kernel 2.4)
clone machine with the vesafb framebuffer. It works well on that.
However when I try to boot my 2.6 kernel with the tridentfb kernel I get
the out of range. Now I tried setting it with identical fbset settings
same as the vesafb. For example, when vesafb (2.6 OR 2.4 kernel) fbset
-i gives
mode "1024x768-76"
# D: 78.653 MHz, H: 59.949 kHz, V: 75.694 Hz
geometry 1024 768 1024 768 16
timings 12714 128 32 16 4 128 4
rgba 5/11,6/5,5/0,0/0
endmode
Frame buffer device information:
Name : VESA VGA
Address : 0xd9800000
Size : 6291456
Type : PACKED PIXELS
Visual : TRUECOLOR
XPanStep : 0
YPanStep : 0
YWrapStep : 0
LineLength : 2048
Accelerator : No
The only difference I see when using the tridentfb is "YPanStep : 1."
I've also tried with epiafb found at http://epiafb.sourceforge.net/
It loads up, but also gives the out of range errors. I even took the
lines from
http://sourceforge.net/forum/forum.php?thread_id=756152&forum_id=221920
1024x768x24:
fbset -t 10582 208 48 36 1 96 3 -g 1024 768 1024 768 24 -hsync high
-vsync high
800x600x24:
fbset -t 17762 152 32 27 1 64 3 -g 800 600 800 600 24 -hsync high -vsync
high
640x480x24:
fbset -t 27778 80 56 25 1 56 3 -g 640 480 640 480 24 -hsync low -vsync
low
All of those (regardless of depth (8,16,24) all produce 'out of range'
problems.
I read
http://www.ibiblio.org/pub/Linux/docs/HOWTO/other-formats/html_single/Framebuffer-HOWTO.html#s18
and converted the two 1024x768 modelines
75.0 1024 1048 1184 1328 768 771 777 806 -hsync -vsync
78.8 1024 1040 1136 1312 768 769 772 800 +hsync +vsync
Which became
75: 13333 144 24 136 29 3 6
78: 12690 179 16 96 28 1 3
X Windows on the RHEL 3 kernel 2.4 system is where those came from, and
works fine.
Can ANYONE give me any insight into what I should be doing to fix
this... pleeeeaaaaase? I'm at the end of my rope with this one.
--
Nathanael D. Noblet
Gnat Solutions, Inc
http://www.gnat.ca/
T 250.385.4613
C 250.383.4613
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