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Display resolutions and headless G4 Server reboots OS X Server
Ever tried to remotely restart your Server when there is no monitor attached? OS X automatically defaults to 800x600 on restart, and if you're running OS X Server on a G4 tower, it can be a royal pain in the butt - especially because once it's restarted, you don't get any choices for different resolutions ... and Workgroup Manager requires 1024x768 to run!

Here's a simple solution ... with your display attached, set your preffered resolution using the System Preferences pane. Once that's done, open the Terminal and lock the preference file (com.apple.windowserver.plist file) by typing:
 % sudo chflags uchg /Library/Preferences/com.apple.windowserver.plist
If you want to make changes to your display settings at a later date, you'll have to unlock the file using sudo chflags nouchg... instead of uchg.

Happy remote restarting!
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Display resolutions and headless G4 Server reboots | 6 comments | Create New Account
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Display resolutions and headless G4 Server reboots
Authored by: lolopb on Mar 03, '03 04:26:54PM

Hummm, I don't understand where is the problem, if I have a server without screen, I will manage it from another computer. I don't think the resolution set on the server can influence my management as long as the computer used to manage remotely is set with the required resolution.

Well, that's what I do with my XServe :)



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Display resolutions and headless G4 Server reboots
Authored by: Shawn Parr on Mar 03, '03 04:46:08PM

I run X server 10.2.3 on a QS2002 800Mhz G4, and this has never been a problem. I run headless, and when I use Workgroup manager on my machine in my office it logs in and lets me do my work without any complaints.



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monitor adaptor and headless G4 Server
Authored by: mclbruce on Mar 03, '03 06:21:40PM

Resolution settings can be a problem when using Timbuktu to access a headless computer. One tried and true way to deal with it is to attach an old style Mac-to-VGA or VGA-to-Mac adaptor to the monitor port on the headless machine. Once you boot up and connect via Timbuktu you can changed the display resolution on the headless machine. You will probably get disconnected for doing so, but the resolution change should stick permenantly.



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monitor adaptor and headless G4 Server
Authored by: lolopb on Mar 03, '03 08:34:57PM

Ok, I agree for a mac os x but I still don't understand the need of this for a mac os x server :)
And yes, I used tu put an adaptator when I used Timbuktu on headless macs with mac os. With mac os x, I prefer ssh, it's quicker even if I connect using my modem ;-)



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monitor adaptor and headless G4 Server
Authored by: sophistry on May 14, '03 11:04:08AM

We are running Timbuktu 6.0.3 on a G4 OSX.2.5 with no monitor attached and rebooting is smooth; Timbuktu doesn't seem to care that there is no monitor attached to this machine. I don't know whether it is the machine or the new Timbuktu software... but it works well.

One tip is to do an SSH tunnel to protect the Timbuktu display packets. Do a search on port forwarding ssh or tunnel ssh to get the general idea. http://afp548.com has a good article on SSH tunneling.



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Display resolutions and headless G4 Server reboots
Authored by: cswinter on May 30, '07 07:00:44AM

This does not work on my G4/400 running 10.4.9. Putting a 100 ohm resistor across the DVI connector does though.



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