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and subject line Bug#246782: Still failing PCI domain detection.
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Date: Fri, 30 Apr 2004 22:13:35 -0700
From: carbonated beverage <[EMAIL PROTECTED]>
To: [EMAIL PROTECTED]
Subject: Failure to find video card with X
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Package: xserver-xfree86
Version: 4.3.0-7
The code in xc/programs/Xserver/xfree86/hw/xfree86/os-support/bus/linuxPci.c
doesn't handle PCI Domains, so the X server fails to find the entry for the
video card under /proc.
This problem manifests itself with kernel 2.6.x.
Here's a simple patch to fix it, it first tries the old-style /proc/bus/pci
access, then tries to access it with the PCI Domain information as well.
I've only tested this on an Ultra 5 workstation with the testing distro.
---- begin patch ----
--- xc/programs/Xserver/hw/xfree86/os-support/bus/linuxPci.c.orig
2004-04-30 22:07:52.572277727 -0700
+++ xc/programs/Xserver/hw/xfree86/os-support/bus/linuxPci.c 2004-04-30
22:13:59.599136716 -0700
@@ -101,23 +101,34 @@
static int
linuxPciOpenFile(PCITAG tag)
{
- static int lbus,ldev,lfunc,fd = -1;
- int bus, dev, func;
- char file[32];
+ static int lbus,ldev,ldom,lfunc,fd = -1;
+ int bus, dev, dom, func;
+ char file[32], file2[32];
bus = PCI_BUS_FROM_TAG(tag);
dev = PCI_DEV_FROM_TAG(tag);
+ dev = PCI_DOM_FROM_TAG(tag);
func = PCI_FUNC_FROM_TAG(tag);
- if (fd == -1 || bus != lbus || dev != ldev || func != lfunc) {
+ if (fd == -1 || bus != lbus || dev != ldev || dom != ldom ||
+ func != lfunc) {
if (fd != -1)
close(fd);
- if (bus < 256)
+ if (bus < 256) {
sprintf(file, "/proc/bus/pci/%02x/%02x.%1x",
bus, dev, func);
- else
+ sprintf(file2, "/proc/bus/pci/%04x:%02x/%02x.%1x",
+ dom, bus, dom, dev, func);
+ } else {
sprintf(file, "/proc/bus/pci/%04x/%02x.%1x",
bus, dev, func);
+ sprintf(file2, "/proc/bus/pci/%04x:%04x/%02x.%1x",
+ dom, bus, dev, func);
+ }
fd = open(file,O_RDWR);
+ if(fd == -1) {
+ fd = open(file2,O_RDWR);
+ ldom = dom;
+ }
lbus = bus;
ldev = dev;
lfunc = func;
---- end patch ----
-- DN
Daniel
---------------------------------------
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Date: Thu, 7 Oct 2004 17:30:52 -0500
From: Branden Robinson <[EMAIL PROTECTED]>
To: [EMAIL PROTECTED]
Subject: Re: Bug#246782: Still failing PCI domain detection.
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On Wed, Aug 25, 2004 at 10:30:10AM -0700, carbonated beverage wrote:
> quit
>=20
> Ah, I see the problem. I added unstable to the sources.list and
> put testing as the default target in apt.conf, updated xserver-xfree86.
Re-closing per submitter.
> When is this going into testing?
When we release a version that doesn't have release-critical bugs in it.
:)
You can stay abreast of the situation at the following URL:
http://packages.qa.debian.org/x/xfree86.html
--=20
G. Branden Robinson | My first priority in any attack is
Debian GNU/Linux | to solve the problem -- not issue a
[EMAIL PROTECTED] | press release.
http://people.debian.org/~branden/ | -- Steve McInerney
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