Re: Toshiba Satellite P10 + ati-drivers (fglrx)

[Jaco Kroon <jaco-P18QfuJFXGPYkQIYctQFYw@public.gmane.org>]

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Pavel Machek wrote:
>>Now, initially when I switch back to X I get the correct image on the
>>bottom third of the screen with the top two thirds seemingly corrupted.
>> This is pretty normal and is identical to what I normally see when
>>switching between consoles and X.  This lasts for about half a second
>>before it freezes up and causes a hard-lock.  Normally the screen just
>>resets itself at the time it now locks up.
> 
> 
> I'm sorry, there's no way we can help you with fglrx. I'm glad at
> least s-t-disk works.

Was the ati-agp module in the kernel.  Adding some suspend/resume
support for that module fixes all and I can now happily suspend-to-ram
and successfully resume.  I've mailed a patch to the agpgart maintainer
and cc'ed the lkml.  For refference purposes the patch (based on
http://unixhead.org/docs/thinkpad/ati-agp/ati-agp.diff) is as follows,
and I'll also make it available on my website:

--- linux-2.6.15-rc6/drivers/char/agp/ati-agp.c.orig	2005-12-25
22:21:32.000000000 +0200
+++ linux-2.6.15-rc6/drivers/char/agp/ati-agp.c	2005-12-25
22:23:33.000000000 +0200
@@ -243,6 +243,15 @@
 	return 0;
 }

+static int ati_resume(struct pci_dev *dev)
+{
+	return ati_configure();
+}
+
+static int ati_suspend(struct pci_dev *dev, pm_message_t state)
+{
+	return 0;
+}

 /*
  *Since we don't need contigious memory we just try
@@ -525,6 +534,8 @@
 	.id_table	= agp_ati_pci_table,
 	.probe		= agp_ati_probe,
 	.remove		= agp_ati_remove,
+	.resume		= ati_resume,
+	.suspend	= ati_suspend,
 };

 static int __init agp_ati_init(void)

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