Re: IBM PS/2 keyboard (P/N 42H1292) and magic SysRq keys

Florian Weimer (fw@s.netic.de)
13 Nov 1999 20:13:47 +0100


Pavel Machek <pavel@suse.cz> writes:

> > Only some of the key combinations work (for example, Alt-SysRq-[0-47-8]
> > don't, but *-[56] do). When I attach a different keyboard, all key
> > combinations work fine. Any suggestions?
>
> This is problem on other keyboard types, too.
>
> Try: Alt down, Sysrq down, Alt up, press key you want. Or remap Sysrq
> to some other keycode.

Thanks a lot, this works. Patch for Documentation/sysrq.txt is appended
below.

> (Windows key? <evil grin>)

Don't have that. After all, it's one of the old but terrific IBM
keyboards. ;)

--- sysrq.txt Sat Nov 13 11:12:11 1999
+++ /tmp/sysrq.txt Sat Nov 13 20:10:45 1999
@@ -1,4 +1,4 @@
- MAGIC SYSRQ KEY DOCUMENTATION v1.2
+3 MAGIC SYSRQ KEY DOCUMENTATION v1.2
------------------------------------
[Sat May 16 01:09:21 EDT 1998]

@@ -18,6 +18,13 @@
On x86 - You press the key combo 'ALT-SysRQ-<command key>'. Note - Some
(older?) may not have a key labeled 'SysRQ'. The 'SysRQ' key is
also known as the 'Print Screen' key.
+
+ Note: Unfortunately, some broken keyboards do not support
+ this key combination. If you've got such a keyboard, you can
+ try the following workaround: Press the ALT key and hold it
+ down, then the SysRq key, release the ALT key, and finally,
+ while still holding down the SysRq key, press one of the keys
+ mentioned below.

On SPARC - You press 'ALT-STOP-<command key>', I believe.

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