Topic: For the Linux Geeks (Read 795 times)

Gaffers · « **on:** 19 March 2010, 20:22:26 »

trying to use xrandr to interogate the graphics settings as the gdm app throws out a signal the monitor cannot support. I keep getting the error "Can't open display"

Searched the web and everyone who gets this error gets silence from the linux community :-/

Help!

Andy H · « **Reply #1 on:** 19 March 2010, 21:06:29 »

man xrandr

Quote

XRANDR(1)

NAME
xrandr - primitive command line interface to RandR extension

I have never use RandR or xrandr, what do you need to use it for?

Which distribution are you running?

Kevin Wood · « **Reply #2 on:** 19 March 2010, 21:09:29 »

Hmm. Haven't had to play with Linux display configuration for many years. Normally works out of the box these days. I remember it being a batsrad though.

Will have a dig.

Kevin

Andy H · « **Reply #3 on:** 19 March 2010, 21:09:46 »

On Debian I would start by checking /var/log/Xorg.0.log

Also would type

lspci

to list the pci devices recognised on the machine.

Gaffers · « **Reply #4 on:** 19 March 2010, 23:10:07 »

Found the problem.

Startup would be ok until the KDU loaded, then I would get an 'Out of range' message from the monitor. It all pointed to the wrong resolution/freq setting. Eventually tried the onboard graphics but not before going down a rabbit hole of xrandr and xorg.conf manipulations but all at the command prompt by switching displays using ALT+CNTL+Fx. Now I am in the GUI and downloading the linux drivers for my radeon gfx card

Slowly getting back into the Linux groove 8-)

Gaffers · « **Reply #5 on:** 19 March 2010, 23:23:17 »

By the way, loving the speed of this compared to Windows 7

News:

Author Topic: For the Linux Geeks (Read 795 times)

Gaffers

For the Linux Geeks

Andy H

Re: For the Linux Geeks

Kevin Wood

Re: For the Linux Geeks

Andy H

Re: For the Linux Geeks

Gaffers

Re: For the Linux Geeks

Gaffers

Re: For the Linux Geeks