Hi Ed!

... Electronic Grafitti: for a good time, ping 203.31.48.11

The Tagline got me curious.
NO!, I didn't PING it, I went to a IP lookup page and read it
goes to a Network in Australia.

I just checked and same.

Barry, have You PINGed or TRACERTed it?
I'm Paranoid and wouldn't try seeing what it might do to my
computer. What did You find out? Thanks.

Based on what I read on WhoIs.com looked innocent enough. 203.31.48.11
doens't go anywhere but 203.31.48.1 goies to a login page for a foundry
(left) -- possibly something called "BigIron MG8" as that's on the
right. ... Google time!

[PDF] BigIron MG8
www.dich.com.tw/network/Core/Foundry/BigIron/MG8/BI-MG8Datasheet.pdf
The BigIron MG8 revolutionizes Enterprise networks by offering
terabit capacity LAN switching and routing in a new generation of
high performance, multilayer ...

...Well, so much for my USB 3,0 upgrade! <g>

... Get a 2nd opinion; 50% of all drs. graduated in bottom half
of class.

Should ask! Though might chicken out with a few, like my urologist!!

¯ ®
¯ Barry_Martin_3@ ®
¯ @Q.COM ®
¯ ®


... 4 out of 5 doctors agree: 1 out of 5 is an idiot
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Theoretically I'm supposed to do ALT_SysRq_REISUB to evoke a reboot
(it's a Linux system) but rarely will that work. OTOH it rarely worked
when I had the mouse and keyboard plugged in directly to the back panel.

Is there a REISUB key, or are we supposed to type those letters? I tried
the latter multiple times over the years... never did work.

I am not sure about the keyboard and mouse in USB... probably depends on
the machine. I've never tried it with linux.

Mike

---
# SLMR 2.1a # "Television! Teacher, Mother, Secret Lover..." - Homer


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Hi Mike!

Theoretically I'm supposed to do ALT_SysRq_REISUB to evoke a reboot
(it's a Linux system) but rarely will that work. OTOH it rarely worked
when I had the mouse and keyboard plugged in directly to the back panel.

Is there a REISUB key, or are we supposed to type those letters?
I tried the latter multiple times over the years... never did
work.

The way I've interpreted the instructions is to hold down the right ALT
key (as opposed to the one on the left, or the correct one -- here we go
with wacky English again!) plus SysRq (a.k.a. "Print Screen"), and while holding those slowly type the letters REISUB -- "several second pause
between entering the letters". There was a comment some keyboards don't
like four-key combinations, such as if using a laptop keyboard and to
turn on/active need to also use the (blue) Function key.

I have gotten 'REISUB' to work on this computer, with this keyboard
(there was also mention some keyboards don't work), and as you said you
have never gotten it to work at least I know it's not just me. I would
rather do the 'graceful shutdown' thing, but if I can't don't really
have a choice.

I am not sure about the keyboard and mouse in USB... probably
depends on the machine. I've never tried it with linux.

OK -- I've tried having the mouse and keyboard plugged into a (powered)
Hub the past couple of months - before then and with previous computers
they were plugged in directly (to the rear panel) via USB extension
cables. Changed to plugging in to the Hub only as part of the Cleaning
Up Project, partially in preperation for the new computer here. ...Some
of those cables snaked between the desk and the wall have been back
there for ages -- VGA?! And there was an old serial cable. Just didn't
want to take the time to untangle.



¯ ®
¯ Barry_Martin_3@ ®
¯ @Q.COM ®
¯ ®


... That's not the serial number: that's the complaint number!!
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The way I've interpreted the instructions is to hold down the right ALT
key (as opposed to the one on the left, or the correct one -- here we go
with wacky English again!) plus SysRq (a.k.a. "Print Screen"), and while holding those slowly type the letters REISUB -- "several second pause
between entering the letters". There was a comment some keyboards don't
like four-key combinations, such as if using a laptop keyboard and to
turn on/active need to also use the (blue) Function key.

Barry,
It may be the "several seconds pause" that I am missing when I try it!

Up Project, partially in preperation for the new computer here. ...Some
of those cables snaked between the desk and the wall have been back
there for ages -- VGA?! And there was an old serial cable. Just didn't
want to take the time to untangle.

I still have VGA cables running around... I am using a KVM switch in my
home "office." :)

Mike

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--- GTMail 1.26
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Hi Mike!

Found some information to update this thread:

Theoretically I'm supposed to do ALT_SysRq_REISUB to evoke a reboot
(it's a Linux system) but rarely will that work. OTOH it rarely worked
when I had the mouse and keyboard plugged in directly to the back panel.

Is there a REISUB key, or are we supposed to type those letters?
I tried the latter multiple times over the years... never did
work.

Was looking around trying to figure out why I'm having Desktop lockups
but the mouse still moves over and Pithos still plays. (Newer issue
here -- appears is a problem that has been around for years over
multiple versions.) Anyway, found Ubuntu disables many of the magic
sysrq key combinations by default. (That ought to give Ky some more ammunition!!)

Appears there might be some other options -- haven't tried as
fortunately no lockups to try on -- yet. Take a look at (and probably
print out!!) at https://askubuntu.com/questions/783501/what-do-i-do- if-ubuntu-16.04-freezes-but-i-can-move-only-the-mouse







¯ ®
¯ Barry_Martin_3@ ®
¯ @Q.COM ®
¯ ®


... Electronic Grafitti: for a good time, ping 203.31.48.11
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Hi Mike!

The way I've interpreted the instructions is to hold down the right ALT
key (as opposed to the one on the left, or the correct one -- here we go with wacky English again!) plus SysRq (a.k.a. "Print Screen"), and while holding those slowly type the letters REISUB -- "several second pause between entering the letters". There was a comment some keyboards don't like four-key combinations, such as if using a laptop keyboard and to
turn on/active need to also use the (blue) Function key.

It may be the "several seconds pause" that I am missing when I
try it!

"It's a computer - it's faster than I am! ...REISUB -- nothing?!" And
I sent you a message yesterday where apparently Ubuntu has disengaged
some of the keyboard shortcuts so no matter how slow you type it won't
work. ...Know the darn thing worked a while back -- maybe some
re-activated the REISUB thing for software update testing and forgot to deactivate it for a while?? (Wonder how one can reactivate, plus what
are the consequences of reactivating?)

And I think I either wrote or the referenced article does suggest
CTRL_ALT_F1 through F9 -- though F7 is the one to return to the Desktop.
I tested yesterday but not during a lockup ==> CTRL_ALT_F1 takes to
command line screen (I needed to log in) and CTRL_ALT_F7 exited to the Desktop.

Up Project, partially in preperation for the new computer here. ...Some
of those cables snaked between the desk and the wall have been back
there for ages -- VGA?! And there was an old serial cable. Just didn't want to take the time to untangle.

I still have VGA cables running around... I am using a KVM switch
in my home "office." :)

Right now I'm using VGA to my second monitor, mainly because this
computer has DisplayPort and VGA as output options. My laptop also has
a VGA port.


¯ ®
¯ Barry_Martin_3@ ®
¯ @Q.COM ®
¯ ®


... Reputation: what you are in light; character: what you are in dark.
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"It's a computer - it's faster than I am! ...REISUB -- nothing?!" And
I sent you a message yesterday where apparently Ubuntu has disengaged
some of the keyboard shortcuts so no matter how slow you type it won't
work.

Not sure about reactivating but, luckily, I use debian instead of ubuntu.
Of course, some things that ubuntu does wind up being "backported" to
debian, so... :o

And I think I either wrote or the referenced article does suggest
CTRL_ALT_F1 through F9 -- though F7 is the one to return to the Desktop.
I tested yesterday but not during a lockup ==> CTRL_ALT_F1 takes to
command line screen (I needed to log in) and CTRL_ALT_F7 exited to the Desktop.

So, CTRL-ALT-F7 will take you back to a GUI desktop after you have been to
the command line screen?

That actually reminds me... sometimes when the desktop is all hosed, but
not 100% locked-up, I can CTRL-ALT to a command line screen, log on, and
either kill the misbehaving program or, if that does not work, I can
shutdown -r now. Better than forcing a power down with the switch. :)

Mike
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10-04-17 16:14 Barry Martin wrote to Mike Powell about Use of Hub w Kybd Mse Howdy! Barry and Mike,

... Electronic Grafitti: for a good time, ping 203.31.48.11

The Tagline got me curious.

NO!, I didn't PING it, I went to a IP lookup page and read it goes to
a Network in Australia.

Barry, have You PINGed or TRACERTed it?

I'm Paranoid and wouldn't try seeing what it might do to my computer.
What did You find out? Thanks.


... Get a 2nd opinion; 50% of all drs. graduated in bottom half of class.
--- MultiMail/MS-DOS v0.49
* Origin: ILink: CCO - capitolcityonline.net (454:3/105)

Hi Mike!

"It's a computer - it's faster than I am! ...REISUB -- nothing?!" And
I sent you a message yesterday where apparently Ubuntu has disengaged
some of the keyboard shortcuts so no matter how slow you type it won't
work.

Not sure about reactivating but, luckily, I use debian instead of
ubuntu. Of course, some things that ubuntu does wind up being
"backported" to debian, so... :o

Probably a little bit of 'stealing' of ideas -- "I like this feature -
think I'll add it".

And I think I either wrote or the referenced article does suggest CTRL_ALT_F1 through F9 -- though F7 is the one to return to the Desktop.
I tested yesterday but not during a lockup ==> CTRL_ALT_F1 takes to
command line screen (I needed to log in) and CTRL_ALT_F7 exited to the Desktop.

So, CTRL-ALT-F7 will take you back to a GUI desktop after you
have been to the command line screen?

Here it does. When I read the CTRL_ALT_F1 through F9 I thought maybe it
was a typo (in the original article) as I remember reading some time
back F1 through F5 or 6 to get to a command line window, and the
different F-keys would open different windows. (Not sure why several.)
F7 would return to the GUI. Not sure if the higher-numbered Function
keys do anything.

I also found out many of the Magic Key Functions have been turned off by default during installation:

Ubuntu ships with sysrq default setting 176 (128+32+16), which
allows to run only SUB part of REISUB combination. You can
change it to 1 or,which is potentially less harmful, 244. To do
this: "sudo nano /etc/sysctl.d/10-magic-sysrq.conf"
and switch 176 to 244; then
"echo 244 | sudo tee /proc/sys/kernel/sysrq"

Partially worked for me. The other 'issue' is if the lockup is caused
by a 'kernel panic' things are designed to not allow us end users to semi-randomly push buttons to try to get things going again, potentially causing harm.

That actually reminds me... sometimes when the desktop is all
hosed, but not 100% locked-up, I can CTRL-ALT to a command line
screen, log on, and either kill the misbehaving program or, if
that does not work, I can shutdown -r now. Better than forcing a
power down with the switch. :)

CTRL_ALT_T to get to Terminal, yes. During my lockups doesn't work, but
then I've also noticed the keyboard doesn't seem to be working fully.
NumLock usually can be toggled, albeit sometimes sluggish (takes a
second or so for the LED to switch states). Sometimes the NumLock LED
will work properly but the CapsLock will not.

I prefer a proper shutdown but frequently with these lockups I don't
have a choice. The lockups are something new, or at least the
frequency. Always have managed to do something which the OS didn't
like; recently (couple of months) the lockups have been getting more
frequent. Could be something to do with the lack of free space on the
hard drive, Have read where someone essentially soaked his motherboard
in contact cleaner (pin oxidation); someone else ran the memory test
available at boot (Mem-something-86) and found a bad RAM.

Should build my new system.


¯ ®
¯ Barry_Martin_3@ ®
¯ @Q.COM ®
¯ ®


... It's great to be a man: The world is your urinal.
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