I can't get the radeon framebuffer working.
If I use plain kernel 2.4.18, it doesn't work at all, it says
"cannot map FB"
(complete kernel-output:
Jun 2 19:55:35 hannonb kernel: radeonfb: ref_clk=2700, ref_div=60, xclk=16600 from BIOS
Jun 2 19:55:35 hannonb kernel: radeonfb: panel ID string: 1024x768
Jun 2 19:55:35 hannonb kernel: radeonfb: detected DFP panel size from BIOS: 1024x768
Jun 2 19:55:35 hannonb kernel: radeonfb: cannot map FB
)
If I use kernel-2.4.18-pre9-ac3 with vga=ask and vga=normal, I get the same error.
If I use an explicit graphics-mode (e.g. vga=791), the screen is just black (X Starts, but I don't have a console).
My card is a Radeon Mobility M6 LY.
All kernels are with radeon framebuffer compiled in as the only framebuffer.
Any idea what is wrong?
cu,
Hanno
Hi,
> Jun 2 19:55:35 hannonb kernel: radeonfb: cannot map FB
>
> My card is a Radeon Mobility M6 LY.
> All kernels are with radeon framebuffer compiled in as the only
> framebuffer.
You might want to try this, I have an M6 LY with what I suspect is the
same problem.
Good luck!
--- radeonfb.c.orig Thu May 9 16:51:26 2002
+++ radeonfb.c Thu May 9 16:48:46 2002
@@ -877,6 +877,14 @@
/* mem size is bits [28:0], mask off the rest */
rinfo->video_ram = tmp & CONFIG_MEMSIZE_MASK;
+ /* According to XFree86 4.2.0, some production M6's return 0
+ for 8MB. */
+ if (rinfo->video_ram == 0 &&
+ (pdev->device == PCI_DEVICE_ID_RADEON_LY ||
+ pdev->device == PCI_DEVICE_ID_RADEON_LZ)) {
+ rinfo->video_ram = 8192 * 1024;
+ }
+
/* ram type */
tmp = INREG(MEM_SDRAM_MODE_REG);
switch ((MEM_CFG_TYPE & tmp) >> 30) {
> > My card is a Radeon Mobility M6 LY.
> > All kernels are with radeon framebuffer compiled in as the only
> > framebuffer.
>
> You might want to try this, I have an M6 LY with what I suspect is the
> same problem.
That patch works! Thanks.
Any plans when it will be included into the main kernel? (I currently have to apply three patches for a working kernel ;-)
> Any plans when it will be included into the main kernel? (I
> currently have to apply three patches for a working kernel ;-)
I have no idea -- Ani Joshi (the radeonfb maintainer) knows about the
problem, and probably has a better fix than mine.