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Author Topic: Ubuntu won't boot with video card in topmost pcie 1x slot  (Read 2099 times)
gnaget
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July 24, 2011, 07:08:42 PM
 #1

I finally got my PCI-e 1x-16x extender cables in, and I am anxious to max out my motherboards with gpus.  Here is my setup:

Slot 0 (PCI-e 1x) -> 5830
Slot 1 (PCI-e 16x) -> 5990
Slot 2 (PCI-e 1x) -> 5830
Slot 3 (PCI-e 16x) -> 5830
Slot 4 (PCI-e 16x) -> 5830

The system boot fine when I only had the 16x slots used or when I have the 16x and the slot 2 1x slot used.  When I plug in the 5830 in slot 0, it hangs up in boot.  I can open up recovery mode, and with aticonfig can see all the cards, the 6990 showing up first and default.  Could the slot 0 card be trying to usurp the default position, and that cause the issue?  Any ideas why this one slot would give me a problem?
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gnaget
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July 24, 2011, 07:13:04 PM
 #2

My syslog where it locks up:

Jul 24 13:56:44 envy kernel: [   15.693239] vgaarb: this pci device is not a vga device
Jul 24 13:56:44 envy kernel: [   15.693251] vgaarb: this pci device is not a vga device
Jul 24 13:56:44 envy kernel: [   15.693259] vgaarb: this pci device is not a vga device
Jul 24 13:56:44 envy kernel: [   15.693267] vgaarb: this pci device is not a vga device
Jul 24 13:56:44 envy kernel: [   15.693275] vgaarb: this pci device is not a vga device
Jul 24 13:56:44 envy kernel: [   15.693283] vgaarb: this pci device is not a vga device
Jul 24 13:56:44 envy kernel: [   15.693291] vgaarb: this pci device is not a vga device
Jul 24 13:56:44 envy kernel: [   15.693299] vgaarb: this pci device is not a vga device
Jul 24 13:56:44 envy kernel: [   15.693308] vgaarb: this pci device is not a vga device
Jul 24 13:56:44 envy kernel: [   15.693316] vgaarb: this pci device is not a vga device
Jul 24 13:56:44 envy kernel: [   15.693324] vgaarb: this pci device is not a vga device
Jul 24 13:56:44 envy kernel: [   15.693333] vgaarb: this pci device is not a vga device
Jul 24 13:56:44 envy kernel: [   15.693341] vgaarb: this pci device is not a vga device
Jul 24 13:56:44 envy kernel: [   15.693349] vgaarb: this pci device is not a vga device
Jul 24 13:56:44 envy kernel: [   15.693357] vgaarb: this pci device is not a vga device
Jul 24 13:56:44 envy kernel: [   15.693366] vgaarb: this pci device is not a vga device
Jul 24 13:56:44 envy kernel: [   15.693374] vgaarb: this pci device is not a vga device
Jul 24 13:56:44 envy kernel: [   15.693382] vgaarb: this pci device is not a vga device
Jul 24 13:56:44 envy kernel: [   15.693392] vgaarb: this pci device is not a vga device
Jul 24 13:56:44 envy kernel: [   15.693400] vgaarb: this pci device is not a vga device
sabe
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July 25, 2011, 04:15:57 AM
 #3

Have you tried delete your Xorg.conf file? Hit ctrl+alt+f1 when it boots to a blank screen and you should be able to access the CLI.

sudo rm /etc/X11/xorg.conf
aticonfig --adapter=all --initial
sudo reboot

This should allow Ubuntu to re-detect all your cards and reinitialize them.

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drawoc
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July 29, 2011, 10:00:47 PM
 #4

Last time I saw this, it was a bad pci extender cable. Try swapping the cables - see if the problem follows the cable.

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