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#1 2014-03-11 21:27:41

cade.robinson
Member
Registered: 2011-11-23
Posts: 7

Second video card not seen by xrandr- works in fedora 20 live

Using:
linux 3.13.6-1
xf86-video-ati 1:7.3.0-1
xorg-server 1.15.0-5
ati-dri 10.1.0-2
xorg-xrandr 1.4.1-1

I am trying to get dual ATI RV610 (Radeon HD 2400) working with xrandr and a default no xorg.conf
I can see that the machine sees the cards via dmesg and lspci:

dmesg |  grep DVI
[    0.497977] [drm]   DVI-I-1
[    0.497990] [drm]   DVI-I-2
[    0.935805] [drm]   DVI-I-3
[    0.935810] [drm]   DVI-I-4
01:00.0 VGA compatible controller: Advanced Micro Devices, Inc. [AMD/ATI] RV610 [Radeon HD 2400 PRO/XT]
04:00.0 VGA compatible controller: Advanced Micro Devices, Inc. [AMD/ATI] RV610 [Radeon HD 2400 PRO/XT]

But xrander --listproviders doesn't show the card and I don't see it in Xorg.log

Providers: number : 1
Provider 0: id: 0x54 cap: 0xf, Source Output, Sink Output, Source Offload, Sink Offload crtcs: 2 outputs: 3 associated providers: 0 name:radeon
grep DVI /var/log/Xorg.0.log
[  2583.280] (II) RADEON(0): Output DVI-0 has no monitor section
[  2583.311] (II) RADEON(0): Output DVI-1 has no monitor section
[  2583.360] (II) RADEON(0): EDID for output DVI-0
[  2583.360] (II) RADEON(0): Printing probed modes for output DVI-0
[  2583.391] (II) RADEON(0): EDID for output DVI-1
[  2583.392] (II) RADEON(0): Printing probed modes for output DVI-1
[  2583.392] (II) RADEON(0): Output DVI-0 connected
[  2583.392] (II) RADEON(0): Output DVI-1 connected
[  2583.392] (II) RADEON(0): Output DVI-0 using initial mode 1920x1080
[  2583.392] (II) RADEON(0): Output DVI-1 using initial mode 1920x1080

The crazy thing this work perfect with a Fedora 20 live cd both Gnome and KDE. So it isn't a BIOS or hardware issue.
I have tried to figure out if Fedora comes with a package I am missing in Arch but can't see anything.

Any ideas?

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#2 2014-05-03 08:20:49

ConnorBehan
Trusted User (TU)
From: Long Island NY
Registered: 2007-07-05
Posts: 1,356
Website

Re: Second video card not seen by xrandr- works in fedora 20 live

When you boot Fedora live, are the bus IDs still 1:00.0 and 4:00.0 or do they become 1:00.0 and 2:00.0? Do you have /dev/dri/card0 and /dev/dri/card1 present on both?

There have been recent changes to how the xserver detects video cards. I think they have to do with running X not as root. So maybe xorg-server and xf86-video-ati have to match the exact versions on the live CD. Anyway, the worst case scenario is that you'll need an xorg.conf.


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