Bug 21045

Summary: system becomes very unstable in milti-seat configuration with two radeonhd videocard
Product: xorg Reporter: Mikhail Kshevetskiy <kl>
Component: Driver/RadeonAssignee: xf86-video-ati maintainers <xorg-driver-ati>
Status: RESOLVED INVALID QA Contact: Xorg Project Team <xorg-team>
Severity: normal    
Priority: medium    
Version: unspecified   
Hardware: Other   
OS: All   
Whiteboard:
i915 platform: i915 features:
Attachments:
Description Flags
multi-seat Xorg configuration file
none
lspci output
none
Xorg.log of primary videocard in milti-seat configuration
none
Xorg.log of secondary videocard in milti-seat configuration (produce an image with artefacts)
none
working dual-monitor xorg.conf (single user)
none
Xorg.log of working dual-monitor configuration (single user) none

Description Mikhail Kshevetskiy 2009-04-03 15:17:28 UTC
Created attachment 24530 [details] [review]
multi-seat Xorg configuration file

I have two radeonhd cards: primary (integrated rs780) and secondary (rv710).
I can get both cards working in the same time with the single Xserver
configuration, but when i use multi-seat configuration (each card have their own
Xserver) the systems becomes very unstable. Also i got an artifacts on the secondary monitor.
Comment 1 Mikhail Kshevetskiy 2009-04-03 15:20:34 UTC
Created attachment 24531 [details]
lspci output
Comment 2 Mikhail Kshevetskiy 2009-04-03 15:21:57 UTC
Created attachment 24532 [details] [review]
Xorg.log of primary videocard in milti-seat configuration
Comment 3 Mikhail Kshevetskiy 2009-04-03 15:24:13 UTC
Created attachment 24533 [details] [review]
Xorg.log of secondary videocard in milti-seat configuration (produce an image with artefacts)
Comment 4 Mikhail Kshevetskiy 2009-04-03 15:25:27 UTC
Created attachment 24534 [details] [review]
working dual-monitor xorg.conf (single user)
Comment 5 Mikhail Kshevetskiy 2009-04-03 15:26:05 UTC
Created attachment 24535 [details] [review]
Xorg.log of working dual-monitor configuration (single user)
Comment 6 Alex Deucher 2009-04-06 08:26:31 UTC
Does:
Option "VGAAccess" "FALSE"
in your device sections help?
Comment 7 Mikhail Kshevetskiy 2009-04-06 08:29:35 UTC
> Does:
> Option "VGAAccess" "FALSE"
> in your device sections help?

is it usefull with PCI/E cards?
Comment 8 Alex Deucher 2009-04-06 08:52:40 UTC
(In reply to comment #7)
> > Does:
> > Option "VGAAccess" "FALSE"
> > in your device sections help?
> 
> is it usefull with PCI/E cards?
> 

Yes.  It doesn't matter what type of bus the card has.  That option prevents the driver from doing legacy vga io. See the radeon man page for more info.
Comment 9 Mikhail Kshevetskiy 2009-04-06 09:16:03 UTC
No, it does not help.
The integrated (primary) card initialize properly, and the second card initialize with problem (every element on a screen was doubled, e.g. two mouse pointers shifted from each other on a distance about 5 mm, every letter on a screen has it's copy with the same distance and so on)

the restart of 1-st Xserver via Ctrl-Alt-backspace was ok
but the restart of 2-nd Xserver finished with total freeze of the operating system.

I have no such issues, when i replace the second radeon with nvidia (driver nv) and use radeonhd driver for integrated radeon videocard.  
Comment 10 Adam Jackson 2018-06-12 19:06:45 UTC
Mass closure: This bug has been untouched for more than six years, and is not
obviously still valid. Please reopen this bug or file a new report if you continue to experience issues with current releases.

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