[Linux-fbdev-users] problems configuring 1280x720 w radeon

[Torgeir V. <to...@po...>]

I am trying to configure a 1280x720 resolution at 50Hz with a radeon
9100 QM card.

I have set up a mode in fb.modes that works if I set it with fbset after
boot, but then the "usable" text area doesn't span the entire
resolution, only about half the width and twothird the height, and
positioned to the upper left.

# 50 Hz
mode "1280x720-50"
   # D: 61.80 MHz, H: 37.50 kHz, V: 50.00 Hz
   geometry 1280 720 1280 720 16
   timings 16181 218 110 20 5 40 5
endmode

When I try to use this mode at boot time, nothing happens. I have the
following settings in grub.conf;

title Fedora Core (2.6.5-1.308custom)
	root (hd0,2)
	kernel /boot/vmlinuz-2.6.5-1.308custom ro root=/dev/hda3
video=radeonfb:xres:1280,yres:720,depth:16,left:218,right:110,hslen:40,
upper:20,lower:5,vslen:5,pixclock:16181

Any idea what I am doing wrong? I have both matroxfb and radeonfb
compiled into the kernel.

/var/log/messages at boot time;

Jul  2 19:36:32 vigor13 kernel: isapnp: Scanning for PnP cards...
Jul  2 19:36:32 vigor13 kernel: isapnp: No Plug & Play device found
Jul  2 19:36:32 vigor13 kernel: hStart = 664, hEnd = 760, hTotal = 800
Jul  2 19:36:32 vigor13 kernel: vStart = 491, vEnd = 493, vTotal = 525
Jul  2 19:36:32 vigor13 kernel: h_total_disp = 0x4f0063^I
hsync_strt_wid = 0x8c02a2
Jul  2 19:36:32 vigor13 rpcidmapd: rpc.idmapd startup succeeded
Jul  2 19:36:32 vigor13 kernel: v_total_disp = 0x1df020c^I
vsync_strt_wid = 0x8201ea
Jul  2 19:36:32 vigor13 kernel: pixclock = 39721
Jul  2 19:36:32 vigor13 kernel: freq = 2517
Jul  2 19:36:32 vigor13 kernel: post div = 0x3
Jul  2 19:36:32 vigor13 kernel: fb_div = 0x59
Jul  2 19:36:32 vigor13 kernel: ppll_div_3 = 0x30059
Jul  2 19:36:32 vigor13 kernel: lvds_gen_cntl: 00000000
Jul  2 19:36:32 vigor13 kernel: Console: switching to colour frame
buffer device 80x30


-- 
Torgeir Veimo <to...@po...>