Blank screen/machine hang with two video cards, one in use

uOpt · 06-28-10, 04:40 PM

When debugging this problem:
http://www.nvnews.net/vbulletin/showthread.php?t=152235

I also had another one: the above configuration, which works fine both for new and old Xorg releases and both for x86_64-256.35 and x86_64-195.36.24-pkg2, will hang the machine when an unused video card is present.

I have a GTK275 in the lowest PCIe slot. When a 7300 is also present, in an upper slot, then starting X11 with either of those drivers will lead to a blank screen, no reaction to keyboard presses and no network reactions. In a word, a hang. The keyboard LEDs are not blinking which would mean it is not a panic but it is also possible that the kernel tries to blink them and X11 has hijacked them already. Removing the 7300 fixes the problem. Xorg -keeptty showed the same behavior, same blank screen, no LED activity.

Xorg.log and config file from when only one card is present are here (same as other thread).
http://www.cons.org/xorg-debug-20100628/

I only have an Xorg.log with both cards when I run Xorg-7.1.1. Apparently that worked better than the new Xorg. The problem is somewhat intermittent, although the new Xorg reliably did this every time today.
http://www.cons.org/xorg-debug-20100...both-cards.log

uOpt · 06-29-10, 06:15 PM

Just bumping this. The machine in question isn't supposed to be crashed so I can't go debug it more and plan to drop the issue. Unless somebody else sees this and needs it?

06-28-10, 04:40 PM	#1
uOpt FreeBSD cheering section Join Date: Nov 2004 Location: Boston, MA, USA Posts: 609	Blank screen/machine hang with two video cards, one in use When debugging this problem: http://www.nvnews.net/vbulletin/showthread.php?t=152235 I also had another one: the above configuration, which works fine both for new and old Xorg releases and both for x86_64-256.35 and x86_64-195.36.24-pkg2, will hang the machine when an unused video card is present. I have a GTK275 in the lowest PCIe slot. When a 7300 is also present, in an upper slot, then starting X11 with either of those drivers will lead to a blank screen, no reaction to keyboard presses and no network reactions. In a word, a hang. The keyboard LEDs are not blinking which would mean it is not a panic but it is also possible that the kernel tries to blink them and X11 has hijacked them already. Removing the 7300 fixes the problem. Xorg -keeptty showed the same behavior, same blank screen, no LED activity. Xorg.log and config file from when only one card is present are here (same as other thread). http://www.cons.org/xorg-debug-20100628/ I only have an Xorg.log with both cards when I run Xorg-7.1.1. Apparently that worked better than the new Xorg. The problem is somewhat intermittent, although the new Xorg reliably did this every time today. http://www.cons.org/xorg-debug-20100...both-cards.log __________________ My Unix benchmark results

06-29-10, 06:15 PM	#2
uOpt FreeBSD cheering section Join Date: Nov 2004 Location: Boston, MA, USA Posts: 609	Re: Blank screen/machine hang with two video cards, one in use Just bumping this. The machine in question isn't supposed to be crashed so I can't go debug it more and plan to drop the issue. Unless somebody else sees this and needs it? __________________ My Unix benchmark results