Good morning everyone;
I am working with a clean install of Debian Squeeze, with the XFCE window manager task selected. My primary problem is my screen resolution, with a secondary problem of only having something displayed on the left monitor.
I have a Dell Precision T5500, with dual monitors (sorry, I am unable to supply a model number for the monitors. If there is one, they managed to hide it quite effectively). The PC has dual video cards, but I am unsure just what they are. lspci gives me "VGA compatible controller: nVidia Corporation Device 0df8 (rev a1)" I can crack the case and physically look if that is needed.
I can live with one display, but I am going to go blind if I do not fix the resolution. I am unable to set the resolution to the optimal of 1920x1200@60Hz. The display setting insists on 1600x1200@0Hz. I am using a DVI cable for both monitors, with the cable to the primary monitor plugged into DVI Connector-1 on the monitor, and the cable for the secondary monitor plugged into DVI Connector-2 on the monitor.
I have resolved similar issues in the past by using cvt and xrandr, but not this time:
~$ cvt 1920 1200 60 # 1920x1200 59.88 Hz (CVT 2.30MA) hsync: 74.56 kHz; pclk: 193.25 MHz Modeline "1920x1200_60.00" 193.25 1920 2056 2256 2592 1200 1203 1209 1245 -hsync +vsync
~$ xrandr --newmode "1920x1200_60.00" 193.25 1920 2056 2256 2592 1200 1203 1209 1245 -hsync +vsync xrandr: Failed to get size of gamma for output default
~$ xrandr --addmode default "1920x1200_60.00" xrandr: Failed to get size of gamma for output default
~$ xrandr --output default --mode 1920x1200_60.00 xrandr: Failed to get size of gamma for output default xrandr: Configure crtc 0 failed
I am unsure what either of the errors mean, nor how to proceed from here. Would anyone mind advising me as to what my next step should be?
Same problem for me.
I have a 1280x1040 which runs well with windows XP
I get 900x600 max with xfce 4.8 wheezy
I tried xrandr but the syntax of your post is not able in my xfce wheezy
Previously : same problem on xfce 4.6 squeeze
See man xrandr.
How about trying the proprietary driver?
SIS 661FX is the video card name on my computer
It's not easy to find help on xfce.doc.
I don't know for instance how to get drivers' card in xfce4.8
Oh sorry, I posted because Nelson mentioned he has an NVIDIA card.
SIS are more troublesome but you may find stuff with Google.
BTW, the video driver installation depends on the distribution (in your case, Debian) not on the desktop environment used.
I found an "old" driver named xserver-xorg-video-sismedia_2008cdlinux_i386.zip
After installing unzip and usual dpkg -i ...
Restarting x : resolution grew up from 900x600 to 1024x768
that's a good improvment.
Thanks to the man who gave us link to the driver!
Problem is solved for myself
Apologies for the extended delay in following up with this. The solution was to compile a new kernel. I went with 3.5.1, the latest and greatest stable at the time. I used Debian's make-kpkg to create a new kernel package, installed it, and booted into it. What a wonderful difference!