How Do I enable dual moniters in Red Hat?

EricB · 01-11-2005, 04:32 PM

In DOS both moniter are on. when I finish installing linux only one moniter came on. no big deal. however when I update linux through the internet, upon reboot the second screen looks like this. the first is still fine fine though

EricB · 01-11-2005, 04:36 PM

another picture

TheMajor · 01-11-2005, 04:39 PM

Looks like it doesn't support the refresh rate. Try booting in safe mode (failsafe) and set it to lower resolution+refresh rate (dunno if this works)

EricB · 01-14-2005, 01:11 AM

how do you do that?

TheMajor · 01-14-2005, 03:33 AM

There should be an option in the bootmenu. If you have any. I don't know where the control panel in Red Hat is.

EricB · 01-14-2005, 02:32 PM

I'll try to find it

horndude · 01-14-2005, 05:37 PM

dual head in linux is a little tricky, you have two options, separate screens or half on each

in either case both vid cards must be supported and you have to edit the xconfig or xfree86config yourself by hand, the configuration file for the X server is very well commented but there's a whole bunch of options, check the docs for details

EricB · 01-14-2005, 06:05 PM

I have a dual VGA card nvidia geoforce 4. I see so much documentation, I can't find it.

horndude · 01-14-2005, 06:14 PM

go here: http://www.linuxquestions.org do a search on the redhat forum

horndude · 01-14-2005, 06:30 PM

oh ya, one other very important detail, although you will probably be ok w/o it, goto nvidia's website and download their linux driver, it needs to be installed while logged in as root and in console mode, that will enable graphic acceleration when in X.That also involves changing 2 lines in the xconfig file.

It will run fine w/o it, but if you want to play any games that need openGL, you will need to install the driver from nvidia

01-11-2005, 04:32 PM	#1 (permalink)
EricB Hard Core Techie Join Date: Nov 2004 Posts: 11,072	How Do I enable dual moniters in Red Hat? In DOS both moniter are on. when I finish installing linux only one moniter came on. no big deal. however when I update linux through the internet, upon reboot the second screen looks like this. the first is still fine fine though

01-14-2005, 01:11 AM	#4 (permalink)
EricB Hard Core Techie Join Date: Nov 2004 Posts: 11,072	how do you do that? __________________ The Ultimate Hard Drive Utility PowerMax 4.23. (It now has the ability to clean a Boot Sector virus on the quick erase option.) The best browser Netscape 8 Have you accidently delete something? Look here (trial. the better one) and here(free)

01-14-2005, 02:32 PM	#6 (permalink)
EricB Hard Core Techie Join Date: Nov 2004 Posts: 11,072	I'll try to find it __________________ The Ultimate Hard Drive Utility PowerMax 4.23. (It now has the ability to clean a Boot Sector virus on the quick erase option.) The best browser Netscape 8 Have you accidently delete something? Look here (trial. the better one) and here(free)

01-14-2005, 06:05 PM	#8 (permalink)
EricB Hard Core Techie Join Date: Nov 2004 Posts: 11,072	I have a dual VGA card nvidia geoforce 4. I see so much documentation, I can't find it. __________________ The Ultimate Hard Drive Utility PowerMax 4.23. (It now has the ability to clean a Boot Sector virus on the quick erase option.) The best browser Netscape 8 Have you accidently delete something? Look here (trial. the better one) and here(free)

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01-11-2005, 04:36 PM	#2 (permalink)
EricB Hard Core Techie Join Date: Nov 2004 Posts: 11,072	another picture

01-11-2005, 04:39 PM	#3 (permalink)
TheMajor PowerQuest / Opera Join Date: Jun 2004 Location: The Netherlands Posts: 10,046	Looks like it doesn't support the refresh rate. Try booting in safe mode (failsafe) and set it to lower resolution+refresh rate (dunno if this works)

01-14-2005, 03:33 AM	#5 (permalink)
TheMajor PowerQuest / Opera Join Date: Jun 2004 Location: The Netherlands Posts: 10,046	There should be an option in the bootmenu. If you have any. I don't know where the control panel in Red Hat is.

01-14-2005, 05:37 PM	#7 (permalink)
horndude Master Techie Join Date: Apr 2004 Posts: 2,532	dual head in linux is a little tricky, you have two options, separate screens or half on each in either case both vid cards must be supported and you have to edit the xconfig or xfree86config yourself by hand, the configuration file for the X server is very well commented but there's a whole bunch of options, check the docs for details

01-14-2005, 06:14 PM	#9 (permalink)
horndude Master Techie Join Date: Apr 2004 Posts: 2,532	go here: http://www.linuxquestions.org do a search on the redhat forum

01-14-2005, 06:30 PM	#10 (permalink)
horndude Master Techie Join Date: Apr 2004 Posts: 2,532	oh ya, one other very important detail, although you will probably be ok w/o it, goto nvidia's website and download their linux driver, it needs to be installed while logged in as root and in console mode, that will enable graphic acceleration when in X.That also involves changing 2 lines in the xconfig file. It will run fine w/o it, but if you want to play any games that need openGL, you will need to install the driver from nvidia