Linux - HardwareThis forum is for Hardware issues.
Having trouble installing a piece of hardware? Want to know if that peripheral is compatible with Linux?
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I did a clean install of Red Hat and it was super fast and easy - auto detected every peripheral in my system without any trouble, including the monitor I was using in the office.
Then I went home and plugged into my home monitor. The boot process seems ok - displays a bunch of text - but when it switches into graphic mode, the screen goes black.
I'm a good dos/Win user, but a total newbie to Linux. Any command line I can use to get the box to recognize the monitor?Also, Red Hat gives a bunch of command line options during boot up - like grub. Which should I use?
Unlike windows, linux won't automaticly detect your monitor, that I know of. The problem is that your using a resolution / color depth / hurtz that your monitor can't handle and it is shutting off.
You can hit ctrl+alt+f1 to go to a command line logon, log in as root, then run xf86config, it might be a diffrent command. That should start the reconfigure of x, you're going to need to know what video card you have and what resolutions, color depths and hurtz levels your monitor can do, and a few other things like the keyboard layout and mouse type, etc... Let me know if you run into problems. And I probably have that command wrong, if it dosn't work I can look it up when I get home.
that is not completely true linux is in many cases ble to use edid info from monitor, not always however. I have my config file set with a wide range for vsync and hsync then the resolutions I want and color depths, I load X and it goes to the resolution I specified, then uses max refresh rates it can. then again I also use slack with a ton of customsation hacks along with a gf4 (nvidia drivers) and dual 17" monitors that can do 1024x768@85hz and have resolutions past 1600x1200 (don't know how mcuh higher to hard to see anything)
I check my log file (/var/log/X*.log (Can't remeber name I use tab completion to much)) and it has about 4 pages (if printed) of frequencies and possible combinatiosn that it eather checks as exceptible or unexceptible based off of info from card/monitors.
hope that helps, also 2 more things:
1) try checking your log (/var/log/X------.log) you can use less /file | more to see it (replace /file with path to log)
2) avoid using gui/automatic utilities to configure X 70% of the people that get X working only make it work after ditching the auto utilities and graphical ones. try typing xf86config and manually entering data. (menu hat you scroll through and select options)
just looked at your last post again:
you are not loged in as root, you are a user.
you need to do a su - then enter root password.
hopefully you remember what you ade the root password be
wait, you arn't trying to execute the file are you? (run it) that would give a similar error.
use your favorite editor, vi, emacs, whatever (do not use eather if you do not know how, otherwise good luck closing eather one)
it is a config file
if all else fails see if you have midnight commander (type mc) then cd to the directory and select the file then hit f4, I do not recommend midnight commander as an editor as it is after all a shell, but it does have an editor and is newbie safe.
Thanks friends. I realized that I needed to invoke some sort of editor to edit the file, which turned out to be vi (which isn't really all THAT hard to use). Now my monitor is happy, and I have a GUI, so I am happy. Thanks to everyone on this post for providing direction. The world has one less Windows user.