Re: radeon framebuffer problem

James Mayer
2002-06-02T20:18:13Z

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) {