From: John David Anglin <dave.anglin@bell.net>
To: Simone Mannori <simone.mannori@gmail.com>
Cc: Rolf Eike Beer <eike-kernel@sf-tec.de>,
linux-parisc <linux-parisc@vger.kernel.org>
Subject: Re: PCI video card hangs during system boot
Date: Wed, 13 Apr 2016 11:02:01 -0400 [thread overview]
Message-ID: <570E5F69.4010203@bell.net> (raw)
In-Reply-To: <CACrbsaBBT20+_GtJD3XMxob7Pz+mhdw7BE0h3uQSpKq-VSOHYA@mail.gmail.com>
On 2016-04-13 3:06 AM, Simone Mannori wrote:
>> Maybe pulling FireGL X1 will help:
>> https://lists.freedesktop.org/archives/dri-users/2015-February/000034.html
> Already done Dave: same error message during system boot. Just to be
> clear, the error message is also indipendent by the PCI slot position.
> Thanks for the hint, anyway.
Just one further thought regarding FireGL X1. The OLS article by Grant
referenced in the above
link indicated that a common problem in porting drivers to parisc was
timing issues with I/O writes.
This was fixed in a couple of drivers by doing a read after doing a
write. Possibly, the radeon driver
could be hacked to always read after write as a test.
I also read somewhere ia64 linux using zx1 chipset did work at one
time. This link gives some history
on ia64 and might give some hints about other things to try:
http://comments.gmane.org/gmane.linux.debian.ports.ia64/3031
>
> My conclusion is that the "vanilla-PC" ATI RADEON 9200 128M PCI is not
> "BIOS compatible" with the c8000.
Agreed. There's no way to change the c8000 BIOS. I'd hoped that
removing the X1 might free up
I/O space and allow 9200 to work.
Dave
--
John David Anglin dave.anglin@bell.net
next prev parent reply other threads:[~2016-04-13 15:02 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-04-12 8:20 PCI video card hangs during system boot Simone Mannori
2016-04-12 16:55 ` Rolf Eike Beer
2016-04-12 18:04 ` John David Anglin
2016-04-13 7:06 ` Simone Mannori
2016-04-13 15:02 ` John David Anglin [this message]
2016-04-14 0:18 ` Graham Gower
2016-04-14 0:29 ` John David Anglin
2016-04-14 1:44 ` Graham Gower
2016-04-14 8:14 ` Simone Mannori
2016-04-14 14:59 ` John David Anglin
2016-04-14 15:54 ` Simone Mannori
2016-04-14 16:19 ` John David Anglin
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