atyfb doesn't work for me

[Greg Stark]

When I try to load atyfb I get messages about "unsupported xclk source" and
"vclk out of range" and the fb devices don't seem to be active. That is, 
  fbset -fb /dev/fb?
all say "no such device"

I see there are module parameters to override some of these settings but I'm
not clear where I would find the correct values to use. And surely the fb
driver ought to be able to come up usable values on its own?


[   25.724880] PCI: Enabling device 0000:02:0b.0 (0080 -> 0083)
[   25.724943] ACPI: PCI Interrupt 0000:02:0b.0[A] -> GSI 23 (level, low) -> IRQ 18
[   25.725047] atyfb: using auxiliary register aperture
[   25.725125] atyfb: 3D RAGE II (Mach64 GT) [0x4754 rev 0x41]
[   25.725176] atyfb: Mach64 BIOS is located at c0000, mapped at c00c0000.
[   25.725228] atyfb: BIOS frequency table:
[   25.725281] atyfb: PCLK_min_freq 26465, PCLK_max_freq 24930, ref_freq 11829, ref_divider 12902
[   25.725337] atyfb: MCLK_pwd 12598, MCLK_max_freq 8241, XCLK_max_freq 22016, SCLK_freq 13619
[   25.725418] atyfb: 512K SDRAM (1:1), 14.31818 MHz XTAL, 249 MHz PLL, 82 Mhz MCLK, 220 MHz XCLK
[   25.725473] atyfb: Unsupported xclk source:  5.
[   25.725654] atyfb: vclk out of range
[   25.725703] atyfb: can't set default video mode
[   25.762829] PCI: Enabling device 0000:02:0c.0 (0080 -> 0083)
[   25.762882] ACPI: PCI Interrupt 0000:02:0c.0[A] -> GSI 20 (level, low) -> IRQ 19
[   25.762965] atyfb: using auxiliary register aperture
[   25.763020] atyfb: 3D RAGE II+ (Mach64 GU) [0x4755 rev 0x9a]
[   25.763065] atyfb: Mach64 BIOS is located at c0000, mapped at c00c0000.
[   25.763109] atyfb: BIOS frequency table:
[   25.763150] atyfb: PCLK_min_freq 26465, PCLK_max_freq 24930, ref_freq 11829, ref_divider 12902
[   25.763201] atyfb: MCLK_pwd 12598, MCLK_max_freq 8241, XCLK_max_freq 22016, SCLK_freq 13619
[   25.763276] atyfb: 512K RESV, 14.31818 MHz XTAL, 249 MHz PLL, 82 Mhz MCLK, 220 MHz XCLK
[   25.763326] atyfb: Unsupported xclk source:  5.
[   25.763496] atyfb: vclk out of range
[   25.763541] atyfb: can't set default video mode


-- 
greg

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