Bug 767699 - ppc64 with matrox video uses fbdev instead of mga
Summary: ppc64 with matrox video uses fbdev instead of mga
Keywords:
Status: CLOSED NOTABUG
Alias: None
Product: Fedora
Classification: Fedora
Component: xorg-x11-drv-mga
Version: 16
Hardware: powerpc
OS: Unspecified
unspecified
unspecified
Target Milestone: ---
Assignee: X/OpenGL Maintenance List
QA Contact: Fedora Extras Quality Assurance
URL:
Whiteboard:
Depends On:
Blocks: F16Blockerppc
TreeView+ depends on / blocked
 
Reported: 2011-12-14 16:55 UTC by Will Woods
Modified: 2012-03-14 13:10 UTC (History)
1 user (show)

Fixed In Version:
Clone Of:
Environment:
Last Closed: 2011-12-14 18:05:29 UTC
Type: ---
Embargoed:

Attachments (Terms of Use)
Xorg.0.log, showing FBDEV in use (12.86 KB, text/plain)
2011-12-14 16:55 UTC, Will Woods 		no flags Details
lspci -vv output (4.91 KB, text/plain)
2011-12-14 16:57 UTC, Will Woods 		no flags Details
View All

Description Will Woods 2011-12-14 16:55:50 UTC 
Created attachment 546812 [details]
Xorg.0.log, showing FBDEV in use
Comment 1 Will Woods 2011-12-14 16:57:12 UTC 
Created attachment 546813 [details]
lspci -vv output
Comment 2 Will Woods 2011-12-14 18:05:29 UTC 
Wow, my comment got lost when I filed the bug. Awesome.

Anyway, this ppc64 system has a Matrox graphics card:

  0001:02:00.0 VGA compatible controller: Matrox Graphics, Inc. MGA G550 AGP
     ^-- possibly interesting non-zero PCI domain

The mga driver claims to support the G550, but Xorg isn't using the mga driver for some reason:

  [   149.468] (**) FBDEV(0): claimed PCI slot 2@1:0:0
  
But as it turns out, the install was done with 'usefbx', which is equivalent to 'xdriver=fbdev', and when you use 'xdriver' anaconda will write /etc/X11/xorg.conf to force that driver into use. Hence fbdev instead of mga.
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