On Sun, Dec 02, 2001 at 01:31:46PM -0600, Greg Norris wrote:
> I've noticed recently that the X server doesn't seem to restore text
> mode properly, if I boot using the "vga=030a" (132x43 text mode) Linux
> kernel option.  This video card is a Matrox G450, with XFree86 4.1.0 on
> Debian "unstable" (i386).  The symptom is that my monitor reports
> "Invalid Scan Frequency" when I exit X (or use Ctl-Alt-Fx to switch to
> a text console), and the display is of course unrecognizable.  I've
> checked the monitor settings in XF86Config-4, and they're all correct
> according to the manual.

I've got a similar situation with an identical card and linux distro.
I can repeatably freeze the console with the following procedure:

startx from the console, with no window manager, only launching an xterm.
log in to another virtual console as the same user you started X as, 'export
DISPLAY=:0.0'; and start a window manager (actually, any X client, I think).
switch back to the graphical console (should now be displaying a window
manager), and kill the xterm (ctrl-d).
switch to the virtual console where I started the window manager, and kill
the window manager.

at this point the console hangs; displaying a blank (tho not dark) screen.
attempting to switch to any virtual console results in the rendering of a
series of short, vertical (mostly red & green) lines at the top of the
screen. machine is still active, and I can SSH in 

Greg, can you try doing this, and see if it happens on your machine as well?
It doesn't happen to me if I don't load the DRI stuff. I've tested this with
kernel 2.4.9-ac3, 2.4.14, and 2.4.16. 
I don't have framebuffer support in my kernel; as someone on #dri suggested
removing it to see if it fixes another DRI lockup problem (after playing
Half-Life [under wine] or Rune [from loki] for some time, the screen will
hang). 
I actually never got console framebuffer working with my G450... hung every
time, with the early 2.4 kernels I tried. 

I submitted a lengthy and detailed bug report to [EMAIL PROTECTED]; is it
appropriate to repost it here? (I'm new to this list).

Care Soderstrom.
-- 
Network Engineer
Real-Time Enterprises
(952) 943-8700
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