<html><body><div style="font-family: arial, helvetica, sans-serif; font-size: 12pt; color: #000000"><div><br></div><div><br></div><hr id="zwchr" data-marker="__DIVIDER__"><div data-marker="__HEADERS__"><blockquote style="border-left: 2px solid #1010FF; margin-left: 5px; padding-left: 5px; color: #000; font-weight: normal; font-style: normal; text-decoration: none; font-family: Helvetica,Arial,sans-serif; font-size: 12pt;" data-mce-style="border-left: 2px solid #1010FF; margin-left: 5px; padding-left: 5px; color: #000; font-weight: normal; font-style: normal; text-decoration: none; font-family: Helvetica,Arial,sans-serif; font-size: 12pt;"><b>From: </b>"Jim Lynch" <ale_nospam@fayettedigital.com><br><b>To: </b>"Atlanta Linux Enthusiasts" <ale@ale.org><br><b>Sent: </b>Saturday, August 15, 2015 5:29:01 PM<br><b>Subject: </b>Re: [ale] System Management Card<br></blockquote></div><div data-marker="__QUOTED_TEXT__"><blockquote style="border-left: 2px solid #1010FF; margin-left: 5px; padding-left: 5px; color: #000; font-weight: normal; font-style: normal; text-decoration: none; font-family: Helvetica,Arial,sans-serif; font-size: 12pt;" data-mce-style="border-left: 2px solid #1010FF; margin-left: 5px; padding-left: 5px; color: #000; font-weight: normal; font-style: normal; text-decoration: none; font-family: Helvetica,Arial,sans-serif; font-size: 12pt;">I've been thinking along the lines of ...<br><br>Connect a Rpi USB port to a an RS232 converter to a null modem to a <br>serial port on my system (yep, it's got one). Configure the system <br>(kernel) to use the serial port as a console. Open a port to the Rpi on <br>the router and ssh into the Rpi and run a terminal program to connect to <br>the serial port of the main machine. Then connect a circuit containing <br>a 115V solid state switch (normally on) to a pin on the Rpi so you can <br>bounce the power remotely when all else fails.<br><br>Not exactly what you want, but you might be able to adapt it somehow.<br></blockquote><div>Probably the best solution for access and control of a consumer grade system.</div><div>Relay modules can be purchased on eBay cheap from China.</div><div><br data-mce-bogus="1"></div><div>You need to verify the computer will support a BIOS setting of "Power State after Power Loss: Previous State".</div><div><br data-mce-bogus="1"></div><div>Many times my desktop does not really lock up. Chrome can make Xorg go to 99% CPU and it feels like a lockup. I can SSH in and kill Chrome. In your case you can't even SSH in. </div><div><br data-mce-bogus="1"></div><div>The great thing about a serial console is that if you are logging that serial connection on the RPi 24x7 and your system locks there may be some history captured of a kernel panic that will shed some light as to why.</div><div><br data-mce-bogus="1"></div><div><br data-mce-bogus="1"></div></div></div></body></html>