i915 dual head woes

Jin, Gordon gordon.jin at intel.com
Sun Apr 27 20:47:33 PDT 2008


Richard Lynch wrote on Monday, April 28, 2008 10:02 AM:
> On Sun, April 27, 2008 8:12 pm, Jin, Gordon wrote:
>> Richard Lynch wrote on Monday, April 28, 2008 9:06 AM:
>>> On Sun, April 27, 2008 4:56 am, Jin, Gordon wrote:
>>>> Richard Lynch wrote on Saturday, April 26, 2008 10:32 AM:
>>>>> Gear:
>>>>> Sony VGN TXN 17P laptop
>>>>> HP L1940T external LCD/CRT
>>>>> 
>>>>> Back story:
>>>>> http://www.phpbootcamp.com/articles/vgn_txn17p.htm
>>>>> (rather long, I'm afraid...)
>>>>> 
>>>>> So I finally managed to get the latest kernel (for gentoo at
>>>>> least) and latest xorg emerged and the i915 driver finally
>>>>> installed... 
>>>>> 
>>>>> It's WORSE!
>>>>> 
>>>>> Before, I had a working setup for just the LFP.
>>>>> And a working setup that would drive the external monitor, but
>>>>> send the LFP into black screen of death hibernation, which
>>>>> NOTHING would wake up.
>>>>> 
>>>>> So if I ever wanted to quit Xorg, I'd have to cold-power-off the
>>>>> laptop. :-( 
>>>>> 
>>>>> Using the same .conf I now get...
>>>>> Nothing.
>>>>> The external monitor is kind enough to inform me via the built-in
>>>>> on-screen-display that something is trying to run it at 640x480 @
>>>>> 67Hz. 
>>>>> 
>>>>> Other than that, I've got a doorstop.
>>>>> 
>>>>> :-(
>>>>> 
>>>>> The only "weird" thing that leaps out at me is that both displays
>>>>> try to use pipe B, and neither one seems willing to use pipe B. Is
>>>>> that normal?...
>>>>> 
>>>>> Can anybody who actually understands this stuff look at a .conf
>>>>> and .log and give me some idea what to try next?
>>>>> http://l-i-e.com/xorg/
>>>> 
>>>> You should write xorg.conf with ONE device and ONE screen. You can
>>>> refer to http://www.intellinuxgraphics.org/dualhead.html and try
>>>> both the dynamic and static setup.
>>> 
>>> Okay.
>>> 
>>> The dynamic setup doesn't do anything, since there's only one
>>> device/screen/monitor recognized by xrandr:
>>> lynch at localhost ~ $ xrandr -q
>>>  SZ:    Pixels          Physical       Refresh
>>> *0    800 x 600    ( 383mm x 302mm )  *75
>>>  1    640 x 480    ( 383mm x 302mm )   75
>>>  2    800 x 1200   ( 383mm x 302mm )   75
>>> Current rotation - normal
>>> Current reflection - none
>>> Rotations possible - normal left inverted right
>>> Reflections possible - none
>>> lynch at localhost ~ $
>>> 
>>> I had higher sizes with different settings in xorg.conf, but nothing
>>> is making this other monitor show up...
>>> 
>>> The static setup also does nothing useful so far...
>>> 
>>> Log and conf files with intellinuxgraphics in their names here:
>>> http://l-i-e.com/xorg/
>> 
>> Try with driver "intel" instead of "i810" in xorg.conf.
> 
> Something to the effect of:
> Driver not loaded; Module not available.

intel 2.x driver should support dual head quite well. And I'm sure the
latest Gentoo ships with intel 2.x driver. I don't know why "intel"
driver not available on your system. I guess the location should be at
/usr/lib/xorg/modules/drivers/intel_drv.so. You might ask support from
Gentoo for this kind of issue.
 
> Am I NOT supposed to be using the git sources and compiling as listed
> here:
> http://www.intellinuxgraphics.org/download.html
> 
> Because that sure seemed to install the 915 driver using the i810
> name, and made the boot process actually load 915 correctly...
> 
> Is there something even newer than that?
> 
> I found a download on the Intel site from 2005 that was:
> Intel-3.4.3006-20051209.i386.tar.gz
> Surely that's not newer than git sources?...

I don't have any idea about this tarball. Where did you find it?
 
> I've also got an i915Graphics.tar.gz from I don't even know where
> which refuses to install, claiming I don't have a "current" kernel.

I don't have any idea for this tarball either.

Gordon



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