ATI Radeon 7500 Mobile (On Dell 5100) with External Monitor

[bob franken]

>From: Jon Trulson <jon at radscan.com>
>
>On Thu, 3 Mar 2005, bob franken wrote:
>
>>>From: Alex Deucher <alexdeucher at gmail.com>
>>>
>>>On Wed, 02 Mar 2005 21:26:25 -0500, bob franken <zonyl at hotmail.com> 
>>>wrote:
>>> >
>>> >
>>> > > > Enabling the MonitorLayout allows the LCD to show up when the ext
>>> > >monitor is
>>> > > > displayed, however, I still get no video on the ext monitor.   At 
>>>a high
>>> > > > level, I am just trying to use my ext monitor (NEC: G90FB) with my
>>> > >laptop
>>> > > > (in clone mode) when docked.
>>> > > >
>>> > > > new config (with MonitorLayout and MergedFB enabled):
>>> > > > http://www.sharpee.com/xorg.conf.merged
>>> > > >
>>> > > > new out:
>>> > > > http://www.sharpee.com/mergedfb.out
>>> > > >
>>> >
>>> > Is there some sort of power saving code in xorg that tries to 
>>>determine if
>>> > an external monitor signal is not seen to power down the port?
>>>
>>>no.  the port should be enabled if you force the monitor type.
>>>
>>> >
>>> > It runs dual headed in Windows and under AccelX,  is there a utility I 
>>>can
>>> > run to dump the registers of the video controller and compare with 
>>>that
>>> > under xorg?
>>>
>>>http://www.botchco.com/alex/radeon/mergedfb/cvs/DRI/hy0/radeon_dump.tgz
>>>
>>
>>Getting AccelX to run dual head was a little touchy this time around, but 
>>I eventually got it working for the dump.
>>
>>Here are my dump results ( AccelX is able to display dual head, X org is 
>>not )
>>
>>No X running, bootup in non-fb console mode:
>>http://www.sharpee.com/b4.txt
>>
>>AccelX Summit 2.2
>>http://www.sharpee.com/accelx.txt
>>
>
>	Glad we were able to help...
>
>--

;)  I always had AccelX working in dual head, just not in X org still.

Now that I have a register dump can someone point me to some chipset 
documentation?   I wish I knew more about this area so I can be more help 
than just reporting the issue.  Ive written nic drivers before, but this is 
quite a beast in comparison.

_________________________________________________________________
FREE pop-up blocking with the new MSN Toolbar – get it now! 
http://toolbar.msn.click-url.com/go/onm00200415ave/direct/01/