radeon + DVI via docking station

[Alex Deucher]

On 6/15/06, Stefan Müller <Stefan.Mueller at cl.uni-bremen.de> wrote:
> Hi,
>
> I am back again. The only thing that seems to work with the driver
> provided by ATI is the DVI display. Disabling the Laptop-Display and
> switching it back on does not work, the system crashes with suspend2disk
> and so on.
>
> So I would like to try the open source drivers again.
>
>
> > LVDS plus internal TMDS is currently not supported by the xorg radeon
> > driver.  right now both digital outputs are hardcoded to crtc1.  You
> > can try my radeon output re-work patch at bug 3621:
> > https://bugs.freedesktop.org/show_bug.cgi?id=3621
> > It should handle LVDS+TMDS, but I don't have a set up to test.
> > Alternatively, you can use the hack on this page:
> > http://ozlabs.org/~jk/docs/mergefb/
>
> I tried this, but the radeontools that I downloaded and compiled seems
> to differ from what is described on that webpage:
>
> radeontool regmatch FP_GEN_CNTL
> usage: radeontool [command]
>          dac [on|off]       - power down the external video outputs (on)
>          light [on|off]     - power down the backlight (on)
>          regs               - show a listing of some random registers
>
> I guess they renamed the registers. Should I use one of the following
> instead of FP_GEN_CNTL?

You need to use the version of radeontool from the website above or
benh's website.  the standard one only offers a few options.
http://ozlabs.org/~jk/docs/mergefb/radeontool-hacked.tar.gz

Alex

>
> radeontool regs
> RADEON_DAC_CNTL=ff002102
> RADEON_DAC_CNTL2=00000022
> RADEON_TV_DAC_CNTL=00280203
> RADEON_DISP_OUTPUT_CNTL=10000005
> RADEON_CONFIG_MEMSIZE=08000000
> RADEON_AUX_SC_CNTL=00000000
> RADEON_CRTC_EXT_CNTL=00008048
> RADEON_CRTC_GEN_CNTL=03200600
> RADEON_CRTC2_GEN_CNTL=02200680
> RADEON_DEVICE_ID=00004e50
> RADEON_DISP_MISC_CNTL=5b300600
> RADEON_GPIO_MONID=00000300
> RADEON_GPIO_MONIDB=00000000
> RADEON_GPIO_CRT2_DDC=00000000
> RADEON_GPIO_DVI_DDC=00000300
> RADEON_GPIO_VGA_DDC=00000300
> RADEON_LVDS_GEN_CNTL=003cffa5
>
> Is this stuff documented somewhere?
>
> Thanks and greetings
>
>         Stefan
>
> --
> Stefan Müller
>
> Universität Potsdam      Tel: (+49) (+331) 977-2180
>
> http://www.cl.uni-bremen.de/~stefan/
>
> http://www.cl.uni-bremen.de/~stefan/Babel/Interaktiv/
>
>