Display Settings tool does not set monitor or video card (Fedora 12) [closed]

asked 2014-11-07 12:17:06 -0600

David K gravatar image

How can I get Gnome to display at a resolution higher than 640x480, using a video card and monitor that support a higher resolution?

Here is what I have tried so far:

From the menu bar, I select System->Administration->Display. A window asks me for the root password. I enter the root password and a window titled "Display Settings" appears.

The button to the right of "Resolution" shows 640x480. Clicking anywhere on this button brings up a menu that gives me choices of only 640x480 or 320x240.

I select the Hardware tab. It shows Monitor Type: Unknown, Video Card: Unknown video card.

I click Configure to the right of "Monitor", a "Monitor" window comes up. I find my monitor in the list (it is a Dell 1905FP, using the digital input), select it, click OK. The Display Settings window shows Monitor Type: Dell 1905FP (Digital).

Now I click Configure to the right of Video Card. A "Video Card" window comes up. I select the line "nv - ... QUADRO cards" since I have a QUADRO card. I click OK. The Display Settings window now shows ... "Video Card: Unknown video card"! What happened to the choice that I just selected?

Now I click OK on the Display Settings window, thinking that at least I can set the monitor type. A window appears with this message:

Display settings changed

You need to log out and restart the X server for the changes to take effect.
Configuration was written to /etc/X11/xorg.conf, original configuration saved as /etc/X11/xorg.conf.backup.

I click OK again and the window closes. But when I look in the file /etc/X11/xorg.conf, it says, it has these lines (after other lines about other things):

Section "Monitor"
        Identifier "Monitor0"
        VendorName "Unknown"
        ModelName "Unknown"

ls -l indicates that this file was modified at the time I closed Display Settings, but I find no evidence that my monitor type was saved anywhere in this file. And indeed when I log out and restart the computer, and bring up Display Settings again, it says Monitor Type: Unknown again.

I can edit the file directly, of course, but my experience trying that was very bad (the system rebooted with no usable graphics at all, and I had to use single-user mode to restore the xorg.conf file before I could boot normally again).

According to System Monitor, my computer has Fedora Release 12 (Constantine), kernel Linux 2.6.32.16-150.fc12.x86_64, GNOME 2.28.2.

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Closed for the following reason question is not relevant or outdated by sideburns
close date 2014-11-07 18:37:39.525969

Comments

Um, why are you using Fedora 12? It's 8 versions old, and totally unsupported.

QuLogic gravatar imageQuLogic ( 2014-11-07 16:09:49 -0600 )edit

Install Fedora 20 and see if that works. If not, ask again.

sideburns gravatar imagesideburns ( 2014-11-07 18:37:19 -0600 )edit

I had F12 because I took a machine from a shelf in the lab for a short-term code-porting project. One full workday to back up files and prepare an F20 installation DVD, one morning to install it (achieving 1024x768 resolution from an "unknown" monitor), most of an afternoon searching for others who had this problem (mostly unanswered questions), installing nvidia drivers from rpmfusion, etc., making many guesses based on incomplete info, and I finally got the correct resolution when I swapped a DVI cable for the old VGA cable.

David K gravatar imageDavid K ( 2014-11-11 15:31:25 -0600 )edit