xfree86/fbdevhw not sending right mode to radeonfb.c
michdaen at iiic.ethz.ch
Mon Nov 19 04:31:18 EST 2001
On Sun, 2001-11-18 at 15:12, Kevin B. Hendricks wrote:
> I am still working on the radeon driver for XFree86 and trying to get the
> useFBDev options to work properly.
> I have a properly constructued mode line in my XF86Config-4 which I
> However when the XFree86 radeon_driver passes this initial mode to the
> radeonfb.c kernel framebuffer driver, most of the mode information is
> missing (no detailed timing info, just xres and yres, etc.
> The radeonfb.c messes up when this incomplete mode information is passed
> to it (from fbdevHWModeInit ?).
> So where should I look to see where this is messing up. It does not
> appear to be an issue with the framebuffer kernel driver since it is the
> victim of the receiving end of the bad data.
> It is almost like the the xfree86 code that parses the XF86Config-4 config
> file is not properly grabbing the specific mode information (or somehow
> later it is being mangled).
> Any hints or guidance of where to look in xfree86, would be greatly
fbdevHW and fbdevHWModeInit in particular are probably good places to
start. If you enable debugging in fbdevHW, it will print detailed mode
Earthling Michel Dänzer (MrCooper)/ Debian GNU/Linux (powerpc) developer
XFree86 and DRI project member / CS student, Free Software enthusiast
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