On 12 March 2010 17:18, Mark Rogers mark@quarella.co.uk wrote:
On 12/03/10 17:13, Mark Rogers wrote:
Where is xorg.cong in Ubuntu 9.10? There doesn't seem to be one in /etc/X11
OK, Google answered that one; it's not there unless it's needed. I need to use xrandr, I believe, but I'm stuck at that point!
Mark.
I haven't had this problem as I neither use Ubuntu 9.10 nor a KVM, however a similar one was asked as a Star Question in this month's Linux Format magazine, LXF130 April 2010. I've repeated the advice for you below, as it may be of use.
HTH,
Peter.
Screen Resolution
Q. I use three computers attached to a KVM switch (not the hypervisor), which works fine with Windows XP, and with Ubuntu 9.04 and earlier. However, I'm having a problem with Ubuntu 9.10 and Fedora 12. I tried Fedora 12 hoping the problem would be different. It seems that neither of these current distros can read the EDID block, so I'm not able to set the display resolution above 800x600. There is no xorg.conf file, so I had one generated with:
Xorg -configure :1
This was recommended in LXF117. I also tried using the Modeline instructions as described in that issue, but the X server wouldn't start until I removed Modeline. I have tried adding this to Section "Screen":
Subsection "Display" Modes "1280x800" EndSubSection
But this seems to be ignored. How can I get the X server to set display modes higher when it can't read EDID (through a KVM switch) and it seems to be ignoring settings in xorg.conf? Rob Solomon
A. X is ignoring your specified mode settings because it thinks that your monitor can't handle a resolution of more than 800x600. There's a quick and dirty solution to this, though: connect the monitor directly to the computer and see it reads the EDID information and sets up the display correctly. Then run:
sudo X -configure
This will write the existing configuration, working, configuration to /root/xorg.conf. Check that this works by logging out of X, logging in to a virtual console and running:
sudo X -config /root/xorg.conf
If this works, copy /root/xorg.conf to /etc/X11, and you have a working configuration that has all the information it needs in xorg.conf with no need to read the EDID information from the monitor itself.
Repeat this process for each of the computers, then reconnect them through the KVM.