[newbie] a twist on standard backspace problem

[Mandrake Mania]

I read the KDE2 FAQ and followed their suggestion to place
the following lines 

xmodmap -e 'keycode 22 = BackSpace'
xmodmap -e "keysym Delete = BackSpace" 

in my .xinitrc file.

The backspace key works fine when I first log in now
(deletes char to the left of cursor and moves cursor to the
left) but somehow at some later point in the session the
keycode 22 gets mysteriously changed to Delete and then the
Backspace key doesn't work as desired anymore.

Any suggestions on how to determine the application that is
changing keycode 22 from BackSpace to Delete and how to
prevent this behavior in the future?

I'm using XFree4 if that is important.

Thanks.

[newbie] video problem in standby mode

[Mandrake Mania]

I'm using a KDE desktop and XFree4 under Mandrake 7.2 with
an ATI Mach64 video card and a Hitachi CM751U monitor.

With DPMS enabled, the monitor blanks for a few seconds
after the timeout period set with xset, but then an "Invalid
Scan Freq." message appears from the monitor and the screen
shows a garbled video signal. Pressing any key brings back
the desktop.

In the BIOS (ABIT BH6 rev. 1.1) I have ACPI disabled and APM
enabled. I also disabled the BIOS-level power management.
I've tried Video Off Methods: "DPMS", "Blank Screen", "VH
Sync + Blank Screen" respectively; nothing fixes the
problem.

Any suggestions on how to get the screen to stay blank
during standby?

Many thanks in advance.  

(P.S. In general I'd like to learn more about how Mandrake
supports desktop power management.  Can anyone point me in
the right direction?)

[newbie] Mandrake 7.2 and power management

[Mandrake Mania]

I recently posted re. problems I've had with a garbled video
signal appearing in place of the screen blanking in standby
mode.

Now I have a configuration that works (after many attempted
permutations):  turn off APM, ACPI, and BIOS-level power
management options in the BIOS and set display power
management with xset dpms 600 0 0, and *not* with the KDE
power management configuration control panel.

Power management under Mandrake looks like a black box to
me.  I'd still be interested in any references that explain
what control programs are using what power management
systems, what Mandrake supports/doesn't support, and known
issues with specific hardware.  

Thanks.

[newbie]

[Mandrake Mania]

I'm using a KDE desktop and XFree4 under Mandrake 7.2 with
an ATI Mach64 video card and a Hitachi CM751U monitor.

With DPMS enabled, the monitor blanks for a few seconds
after the timeout period set with xset, but then an "Invalid
Scan Freq." message appears from the monitor and the screen
shows a garbled video signal. Pressing any key brings back
the desktop.

In the BIOS (ABIT BH6 rev. 1.1) I have ACPI disabled and APM
enabled. I also disabled the BIOS-level power management.
I've tried Video Off Methods: "DPMS", "Blank Screen", "VH
Sync + Blank Screen" respectively; nothing fixes the
problem.

Any suggestions on how to get the screen to stay blank
during standby?

Many thanks in advance.  

(P.S. In general I'd like to learn more about how Mandrake
supports desktop power management.  Can anyone point me in
the right direction?)