On Wednesday 26 January 2005 12:09, Andrew Walrond wrote:
> When I try video=atyfb:1024x768-8@60, I get even less output:
> atyfb: using auxiliary register aperture
> atyfb: 3D RAGE XL (Mach64 GR, PCI-33MHz) [0x4752 rev 0x27]
> atyfb: 8M SDRAM (2:1) (32-bit) 29.498928 MHz XTAL, 230MHz PLL, 83 MHz MCLK
> 63MHz XCLK
> atyfb: fb0: ATY Mach64 frame buffer device on PCI
> In all cases, the screen blanks for a moment during boot, then reppears in
> original 80x25 format.
FYI I have resolved this issue.
I had CONFIG_FRAMEBUFFER_CONSOLE=m
in the kernel config. I think the frambuffer code was working fine (explaining the screen blanking during boot), but then the console subsystem reconfiguring the display back to text mode.
Changing to CONFIG_FRAMEBUFFER_CONSOLE=y fixed this.
This is obviously a 'gotcha' to remember for the future, but perhaps also a candidate for further thought, since all subsequent use of the fb device (for graphics) produced a corrupt display.