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SubjectRe: [linux-fbdev] Re: [PATCH] rivafb bugfixes
On 05:57 AM 7/4/2000, Geert Uytterhoeven wrote:
>On Wed, 28 Jun 2000, Harold Oga wrote:
>> - 16bpp seems to be still be all screwed up, as it comes up with pale
>green
>> text on black background, instead of white on black. Also, running
>fbtv
>> or fbi results in the image appearing with a green tinge to it.
>
>The green tint is usually caused by 15/16 bpp confusion.
Hi,
Whoops, looks like I only sent my note about comparisions between
vesafb and rivafb 0.72 to Jeff Garzik. Anyways, to quickly sum up what I am
seeing, here's the output from fbset -i under rivafb 0.72 and vesafb, both
running at 1024x768-16:

rivafb 0.72:
mode "1280x1024-76"
# D: 135.007 MHz, H: 81.134 kHz, V: 76.254 Hz
geometry 1280 1024 1280 2048 16
timings 7407 248 32 34 3 104 3
rgba 5/10,5/5,5/0,0/0 <===
endmode
Frame buffer device information:
Name : Riva RIVA-UTNT2
Address : 0xd6000000
Size : 33423360
Type : PACKED PIXELS
Visual : DIRECTCOLOR
XPanStep : 1
YPanStep : 1
YWrapStep : 0
LineLength : 2560
Accelerator : No


vesafb:
mode "1280x1024-77"
# D: 131.096 MHz, H: 80.328 kHz, V: 76.649 Hz
geometry 1280 1024 1280 1024 16
timings 7628 160 32 16 4 160 4
rgba 5/11,6/5,5/0,0/0 <===
endmode
Frame buffer device information:
Name : VESA VGA
Address : 0xd6000000
Size : 4194304
Type : PACKED PIXELS
Visual : TRUECOLOR
XPanStep : 0
YPanStep : 0
YWrapStep : 0
LineLength : 2560
Accelerator : No

Notice how the rgba lines are different between the two. Vesafb appears
with correct colors, and rivafb does not. I guess I'll have to study the
2 drivers and see if I see some obvious error somewhere.

-Harold
--
"Life sucks, deal with it!"


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