Bug 98534 - Unable to start Xorg with radeon driver
Summary: Unable to start Xorg with radeon driver
Status: RESOLVED DUPLICATE of bug 98524
Alias: None
Product: xorg
Classification: Unclassified
Component: Driver/Radeon (show other bugs)
Version: 7.7 (2012.06)
Hardware: PowerPC All
: medium normal
Assignee: xf86-video-ati maintainers
QA Contact: Xorg Project Team
URL:
Whiteboard:
Keywords:
Depends on:
Blocks:
 
Reported: 2016-11-01 19:03 UTC by Mingcong Bai
Modified: 2016-11-02 01:28 UTC (History)
0 users

See Also:
i915 platform:
i915 features:

Attachments
Xorg.0.log (full) (18.86 KB, text/plain)
2016-11-01 19:03 UTC, Mingcong Bai 		no flags Details
lspci output (1.58 KB, text/plain)
2016-11-01 19:03 UTC, Mingcong Bai 		no flags Details
/proc/fb content (14 bytes, text/plain)
2016-11-01 19:03 UTC, Mingcong Bai 		no flags Details
dmesg, grep'd "fb" (754 bytes, text/plain)
2016-11-01 19:04 UTC, Mingcong Bai 		no flags Details
dmesg, grep'd "radeon" (1.40 KB, text/plain)
2016-11-01 19:04 UTC, Mingcong Bai 		no flags Details
View All

Description Mingcong Bai 2016-11-01 19:03:07 UTC 
I wasn't able to launch X with the "radeon" driver on my PowerMac G5. I had a problem with Xorg server choosing the wrong PCI slot for my graphics card, described here:

https://bugs.freedesktop.org/show_bug.cgi?id=98524 BusID disregarded in xorg.conf in dual graphics card and single monitor setup

So I ended up disabling the NVIDIA card (which caused the problem above) with the following udev command line:

ACTION=="add", KERNEL=="0000:0a:00.0", SUBSYSTEM=="pci", RUN+="/bin/sh -c 'echo 1 > /sys/bus/pci/devices/0000:0a:00.0/remove'"

And now the X server could choose the only right PCI slot for the graphics card, but the server still won't start, from the Xorg.0.log (attached below), I can see that the X server has chosen the right driver through probing - as I do not have any xorg.conf that specifies to use the "radeon" driver.

Attached above:

- Xorg.0.log
- dmesg outputs (grep'd "fb" and "radeon")
- /proc/fb content
- lspci output
Comment 1 Mingcong Bai 2016-11-01 19:03:26 UTC 
Created attachment 127665 [details]
Xorg.0.log (full)
Comment 2 Mingcong Bai 2016-11-01 19:03:38 UTC 
Created attachment 127666 [details]
lspci output
Comment 3 Mingcong Bai 2016-11-01 19:03:56 UTC 
Created attachment 127667 [details]
/proc/fb content
Comment 4 Mingcong Bai 2016-11-01 19:04:13 UTC 
Created attachment 127668 [details]
dmesg, grep'd "fb"
Comment 5 Mingcong Bai 2016-11-01 19:04:25 UTC 
Created attachment 127669 [details]
dmesg, grep'd "radeon"
Comment 6 Michel Dänzer 2016-11-02 01:28:23 UTC 
The "[KMS] Kernel modesetting enabled." message means that the driver's probe hook succeeded, so this is a Xorg issue. Resolving as a duplicate of your bug 98524, as those symptoms look basically the same there. Note that IIRC there was already at least one earlier report about the same issue.

*** This bug has been marked as a duplicate of bug 98524 ***

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