Why the OS hang when I transfer from graphic mode to text mode

Mon, 02 Feb 2004 20:22:40 -0800 

Hi , All

        After I start my machine in graphic mode as default in X-window (Redhat9) I 
found my linux os hang when I execute the following script:

                while true
                do
                init 3
                sleep 10
                init 5
                sleep 10
                done

         I have traced the source code of graphic driver & XFree86 (I use the 9880 
card of trident) and found that the system hang in the following functions:

                1.InitAndStartDevices->EnableDevice

                2.vbedoEdid

                3.vgaHWSave

        The hang issue can only be duplicated randomly , often after  the above script 
has been run for 30 minutes.

        Can anybody give me some ideas about this?

        Thanx.


bst.,rgds

Yukun




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