[ltp] Re: 4x AGP on the A31p (and T30)

[Kristjan Onu]

D. Sen <dsen@ieee.org> wrote:
> On the T30 which has the Radeon Mobility M7 graphics chipset, I can
> get 4x AGP up by editing the "Option" "AGPMode" "4" in the devices
> section of XF86Config-4.
> 
> *However* The machine doesnt survive a suspend-resume cycle in AGP 4x 
> mode. The machine freezes requiring a cold reboot at an attempt to 
> resume the machine after it has been suspended. Same symptom persists 
> when I set the option for AGPMode "2".
> 
> A31 machines portray this behaviour as well?

I'm afraid so. I wouldn't say the machine freezes completely
though. After suspending, I can log on remotely, kill the XFree86
process, when it re-spawns, X is in a usable state again (but the text
consoles on F1-F6 remain frozen.)

I remember having similar problems with XiG's X server, their
documentation for the xsvc package (see ftp://ftp.xig.com/Summit/)
contains the following entries:

   3.0-28 05/07/2002

       - corrected a problem that would cause multiple server
         invokations to hang on ATI chips.  This was related to the
         APM fix made in the previous version.

   3.0-27 05/06/2002

       - corrected a problem with APM whereby the AGP bridge would not
         be shutdown/re-initialized properly during APM events.  This
         could cause the server to lock in certain cases when the
         machine was 'woken up' after a suspend.

It seems to me that, whatever the problem may be, it should be reported
as bug either to the Linux kernel or XFree86 developers.

Kristjan




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