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UPDATE: I'm an idiot. I screwed up connecting the cable and used a single channel DVI cable, despite being perfectly aware of the need to use dual. Swapped in the right cable and all's well.
I got a Dell u2711 monitor and expected it to just work. When I try to run it at 2560x1440 everything looks wrong; it's not just fonts, even the mouse cursor is somehow screwed up. Text is unreadable. Yes, I'm using the dual channel DVI cable.
The information xrandr reports appears correct:
$ xrandr
...
DVI-I-2 connected 2560x1440+0+0 (normal left inverted right x axis y axis) 597mm x 336mm
2560x1440 60.0*+
...
xdpyinfo says something else, though.
$ xdpyinfo | grep -B2 resolution
screen #0:
dimensions: 4240x1440 pixels (997x342 millimeters)
resolution: 108x107 dots per inch
I thought maybe the disagremement on dimensions was the problem so I plopped
this into /etc/X11/xorg.conf.d/90-monitor.conf
Section "Monitor"
Option "UseEdidDpi" "false"
Identifier "Monitor0"
DisplaySize 597 336
EndSection
Section "Screen"
Identifier "Screen0"
Monitor "Monitor0"
EndSection
It did indeed change what xdpyinfo reports, but everything looks the same (squished and pixely). So it didn't work.
$ xdpyinfo | grep -B2 resolution
screen #0:
dimensions: 4240x1440 pixels (598x339 millimeters)
resolution: 180x108 dots per inch
I'm using the binary nvidia driver. I tried starting up with the Nouveau driver but that didn't improve things.
I'm using a GeForce GTX 460 graphics card: http://www.newegg.com/Product/Product.a … 6814127510
I do not know what's going on here or how to fix it. Is there a known issue using the Dell U2711 monitor with xorg and nvidia? Google doesn't seem to know about it.
Last edited by kingkong (2012-08-19 02:24:33)
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