[SOLVED] GTX 670 SLI/Tri 2560x1440 xorg.conf Configuration

AustinMatherne

I ran the following on a brand new install:
echo "modules=\"nvidia\"" >> /etc/conf.d/modules
echo "VIDEO_CARDS=\”nvidia\”" >> /etc/make.conf
echo "INPUT_DEVICES=\”evdev\”" >> /etc/make.conf
echo "x11-base/xorg-server udev" >> /etc/portage/package.use
emerge xorg-server
emerge nvidia-drivers
emerge twm
emerge xterm
env-update
source /etc/profile
modprobe nvidia
eselect opengl set nvidia
nvidia-xconfig
startx

I thought emerge xorg-server would install nvidia-drivers since I had VIDEO_CARDS="nvidia" in my make.conf? Apparently not.

Anyway, when I run startx I get a black screen, which I can't quit out of using Ctrl-Alt-Backspace, instead I have to do a hard power off.

/var/log/Xorg.0.log is empty. Any ideas?

My hardware is as follows:

Note: Two of the displays are connected to the first video card using DVI, the third display is connected to the second video card using DVI, as well. I’m not sure if this is causing any problems.

/etc/X11/xorg.conf

audiodef · Posted: Fri Sep 21, 2012 1:05 pm Post subject:

Have you started dbus? Every time I build a new Gentoo box, I forget to do this, and starting X leaves me with no keyboard and mouse (and therefore no way to ctrl-alt-backspace out).
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Ant P. · Watchman Joined: 18 Apr 2009 Posts: 6920

Ctrl+Alt+Backspace has been disabled by default for several years. Use Alt+SysRq+K if you want to kill the X server.

AustinMatherne · Posted: Sat Sep 22, 2012 5:52 am Post subject:

I'm not familiar with dbus, much less how to start it. How would I do that exactly?

I've edited my xorg.conf to the following since my first post based on some stuff I've read while googling.

/etc/X11/xorg.conf

When I run startx I can tell which of the three monitors it is trying to use (the second display on the first video card) because the backlight turns on for only one of the screens. The normal terminal runs on the other monitor (the first display on the first video card) that's plugged into the same GPU. When I hit Alt+SysRq+K the blacklight on the second display turns off, and the first display (the one that terminal runs in) turns back on but is completely red. Both the top and bottom of the screen are red, however, the bottom half is flickering red, while the top half is solid red.

Once I end up at this red screen (of death) I am able to Ctrl+Alt+Del into a reboot which makes the following Xorg log file available after the restart. Oddly, the Razer BlackWidow keyboard is generating an error, but I don't think that's the issue? If I'm reading the log right (and this is my first experience with xorg, so I'm probably not) it looks like it isn't able to figure out how to configure my display based on the EDID, and is therefore setting the display to an unsupported configuration, which I'm guessing I can fix by explicitly configuring those settings in xorg.conf. I just don't know what they would be.

/var/log/Xorg.0.log

AustinMatherne · Posted: Sat Sep 22, 2012 8:05 pm Post subject:

I got my hands on a display which I know the horizontal and vertical frequencies for. I swapped it in for the display I had running on the second video card, and updated the xorg.conf resolution, horizontal, and vertical frequencies. It works on that display, so I know the settings just aren't right for the other displays.

/etc/X11/xorg.conf
/var/log/Xorg.0.log

The problem is that the three displays I actually want to use (Achieva Shimian QH270-IPSB) are from Korea, and they didn't come with manuals. I know that the resolution for them is 2560x1440, but I haven't a clue what their supported horizontal and vertical frequencies are. Does anyone know how I can find that information out (I've already searched)?

AustinMatherne · Posted: Mon Sep 24, 2012 12:59 am Post subject:

I figured it out. I had to add the below option under each of the device sections of xorg.conf. Now it works flawlessly.

ZeuZ_NG · Posted: Sat Oct 13, 2012 4:16 pm Post subject:

In what section did you place this?
I'm having similar issues with a Razer Mamba...
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| Intel Core i7 920. | Intel DX58SO Extreme. |
| 8gb DDR3 1666mHz | 1TB 7200 RPM WD HDD.|
Unix´s guru view of sex:
unzip ; strip ; touch ; grep ; finger ; \
mount ; fsck ; more ; yes ; umount ; sleep.

ZeuZ_NG · Posted: Sat Oct 13, 2012 4:46 pm Post subject:

For completition sake, here's my Xorg.log:
http://bpaste.net/show/50935/
And my 10-evdev.conf:
http://bpaste.net/show/50936/
And my (generated by ati-config) Xorg.conf
http://bpaste.net/show/50937/
_________________
| Intel Core i7 920. | Intel DX58SO Extreme. |
| 8gb DDR3 1666mHz | 1TB 7200 RPM WD HDD.|
Unix´s guru view of sex:
unzip ; strip ; touch ; grep ; finger ; \
mount ; fsck ; more ; yes ; umount ; sleep.

AustinMatherne · Posted: Sat Oct 13, 2012 5:04 pm Post subject:

Sorry, but you're having an unrelated issue. Mine didn't have anything to do with my mouse.

Extended display identification data