BUG: broken I830MP AGP support in 2.4.17 and 2.4.18pre7

BUG: broken I830MP AGP support in 2.4.17 and 2.4.18pre7

[Stuffed Crust]

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I'm blessed with a new Dell Inspiron 4100, which is in turn blessed with
the i830MP AGP chipset.  It's identical to the i830M except it doesn't
have the on-chip graphics controller.

When trying to load up the agpgart module under 2.4.17, I get:

>Linux agpgart interface v0.99 (c) Jeff Hartmann
>agpgart: Maximum main memory to use for agp memory: 262M
>agpgart: Detected an Intel 830M, but could not find the secondary device.

Fine, I see that 2.4.18pre supposedly has fixes for the I830MP.  So I
compile it, slap it in place.. and get:  (with 2.4.17pre7)

>Linux agpgart interface v0.99 (c) Jeff Hartmann
>agpgart: Maximum main memory to use for agp memory: 262M
>agpgart: unsupported bridge
>agpgart: no supported devices found.

lspci yields:
>00:00.0 Host bridge: Intel Corporation: Unknown device 3575 (rev 02)
>        Flags: bus master, fast devsel, latency 0
>        Memory at d0000000 (32-bit, prefetchable) [size=256M]
>        Capabilities: [40] #09 [0105]
>        Capabilities: [a0] AGP version 2.0

So it appears not all is well with the I830MP patch.
(Yes, I have tried the 'agp_unsupported' option in both cases)

 - Pizza
-- 
Solomon Peachy                                    pizzaATfucktheusers.org
I ain't broke, but I'm badly bent.                           ICQ# 1318344
Patience comes to those who wait.
    ...It's not "Beanbag Love", it's a "Transanimate Relationship"...

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Re: BUG: broken I830MP AGP support in 2.4.17 and 2.4.18pre7

[Nicolas Aspert]

Stuffed Crust wrote:


> When trying to load up the agpgart module under 2.4.17, I get:
> 
> 
>>Linux agpgart interface v0.99 (c) Jeff Hartmann
>>agpgart: Maximum main memory to use for agp memory: 262M
>>agpgart: Detected an Intel 830M, but could not find the secondary device.
>>


This is normal. 2.4.17 does not support i830MP.


> Fine, I see that 2.4.18pre supposedly has fixes for the I830MP.  So I
> compile it, slap it in place.. and get:  (with 2.4.17pre7)
> 
> 
>>Linux agpgart interface v0.99 (c) Jeff Hartmann
>>agpgart: Maximum main memory to use for agp memory: 262M
>>agpgart: unsupported bridge
>>agpgart: no supported devices found.
>>
> 
> lspci yields:
> 
>>00:00.0 Host bridge: Intel Corporation: Unknown device 3575 (rev 02)
>>       Flags: bus master, fast devsel, latency 0
>>       Memory at d0000000 (32-bit, prefetchable) [size=256M]
>>       Capabilities: [40] #09 [0105]
>>       Capabilities: [a0] AGP version 2.0
>>
> 

This is much stranger... And even if the 830mp stuff does not work 
(several people have been able to use it), loading the agpgart module 
with the 'try_unsupported=1' option should do the trick (at least in 
2.4.18-pre7)... Can you send the full output of lspci ?

Best regards.

Nicolas.
-- 
Nicolas Aspert      Signal Processing Institute (ITS)
Swiss Federal Institute of Technology (EPFL)