Mac mini screen res changes through gcs634u

I have a mac mini and use it via a 2port Iogear kvm to a HP2408 @1920x1200 resolution. I just bought a new 4port Iogear 634u but when i connect the mac it changes the resolution to 1280x1024 and does not give me the option to do 1920x1200 at all. If i connect the monitor directly or thru the 2p kvm it works just fine... any ideas ?

Hi, only idea I have is from some reviews...
The device doesn't seem to consistently and reliably relay accurate EDID information from the monitor
It has managed to negatively impact the monitor - as much as I have messed with the settings, the left edge of my screen is off the monitor.
http://www.tigerdirect.com/applications/SearchTools/item-details.asp?EdpNo=21517 35

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Mac Mini Doesn't Display through Philips Tube HDTV

I have a Philips tube HDTV with a VGA connector in the back, and used the DVI-VGA connector that came with my new Mac Mini to connect. I don't have a computer monitor at home. The TV doesn't display anything.
So then I took the Mac Mini over to a friend's. He has a VGA monitor, and so he ran the Mac Mini through setup and set it to the lowest possible display settings. I came back here, rebooted and plugged it back in; still no display.
Then I tried this:
"First thing to try is to boot the mini into safe mode by holding down the shift key as it boots up. This should allow it to boot, and then give you access to the display preference pane to adjust the settings back to those that worked.
If that doesn't work, try disconnecting the TV, and rebooting the Mac with no display attached. Once it has fully booted and enough time has passed to allow the desktop to be displayed, reconnected the TV. This should force the mini to boot into a low-res mode that works with just about anything, then when you reconnect the display, either cause it to auto-sense the correct resolutions, or give you access to display preferences."
This didn't work either. Any suggestions?

Hi Alan,
Check your TV manual to see what resolutions your VGA/RGB connector on your TV will accept. Being a HDTV it is likely to be from 480p to at least 1080i.
You then set the resolution in your Display preference pane to 640x480 and you should get a picture on your TV. The trick is to set it when you can't see anything! Attaching to another device may not help because the Mac detects that device when you set the Display and will know its not that when attached again to your TV. When attached to your TV it is setting another resolution it thinks will work. It is clearly guessing the wrong screen resolution when you do connect it.
I overcame this situation myself using a VNC client. That requires you to have another computer you can use to control your Mac Mini via VNC. You can then access the Display pane via VNC and set the 640x480 resolution which will work.
For setting 1080i (and the VNC process) please see:
http://www.macosxhints.com/article.php?story=20060319073027371&query=1080i%2BMac %2BMini
I am guessing you can also use an S Video adapter - available from Apple - to connect to an S Video port your TV may also have. That won't help with the VGA connection though.
Hope this helps.

Access Mac Mini Server (profile management) through reverse proxy

Hi,
Newbie in Mac's world and yet trying to make it more complicated as it is.
As we recently (last month) decided to equip our sales force with iPads, they were configured through Apple Configurator tool running on a dedicated Mac Mini Mountain Lion.
Now, I'd be keen in moving this configuration to the Profile Manager, part of the OSx Server plugin. So far so good.
Problem is the following : another web server is already on the LAN using both 80 and 443 ports. So all incoming traffic on those ports was routed to this other server. As Mac Mini Server default http/s ports may not be altered, I installed a reverse proxy server (Oracle VM - Ubuntu 12.04LTS - pound), configured to deal differently traffic on those ports according to the domain name (host) of the web request (header). Each 'local' server has been allocated a domain name. Just to be clear, traffic is now routed by the WAN/LAN router, for those ports, towards the reverse proxy, configured to reroute the traffic to the correct destination.
So far so good, it works like a charm, except... as soon as we enter https protocol on Mac Mini Server Profile Manager.
Access from an iDevice to the Mac Mini Server Profile Manager login page is fine, but as soon as password is confirmed, safari is pending and finally a message 'An internal serer error occured. Please try later again' appears.
Looking to both reverse proxy system log and Mac Mini profilemanager.log files to trace the problem, the following lines are produced at this particular moment :
reverse proxy system.log
Jan 15 14:44:03 reverseproxy pound: 91.... GET /devicemanagement/console/apple_theme_v2/en/da56af0a69e733b259dac3991419fa928b4 94a56/resources/images/sprites/me_controls.png HTTP/1.1 - HTTP/1.1 200 OK
Jan 15 14:44:03 reverseproxy pound: 91.... GET /auth?redirect=http://osxsrv.fiks.net/devicemanagement/api/authentication/callback HTTP/1.1 - HTTP/1.1 302 Moved Temporarily
Jan 15 14:44:04 reverseproxy pound: 91.... GET /devicemanagement/api/authentication/callback?auth_token=336952DE-BDDE-4390-82F 7-8475B79FB2D3 HTTP/1.1 - HTTP/1.1 302 Moved Temporarily
Jan 15 14:44:04 reverseproxy pound: (b7680b40) e500 can't read header
Jan 15 14:44:04 reverseproxy pound: (b7680b40) e500 response error read from 192.168....:443/GET /profilemanager/ HTTP/1.1: Success (0.007 secs)
Jan 15 14:44:08 reverseproxy pound: 91.... POST /devicemanagement/api/magic/get_updated HTTP/1.1 - HTTP/1.1 200 OK
OSx Server profilemanager.log
Jan 15 14:44:05 osxsrv ProfileManager[1748] <Info>: Processing MagicController#do_magic (for 91.... at 2013-01-15 14:44:05) [POST]Jan 15 14:44:05 osxsrv ProfileManager[1749] <Info>: Processing MagicController#do_magic (for 91.... at 2013-01-15 14:44:05) [POST]
Jan 15 14:44:06 osxsrv ProfileManager[1748] <Info>: Completed in 492ms (View: 0, DB: 6) | 200 OK [http://osxsrv.../magic/do_magic]
Jan 15 14:44:06 osxsrv ProfileManager[1749] <Info>: Completed in 687ms (View: 0, DB: 5) | 200 OK [http://osxsrv..../magic/do_magic]
Jan 15 14:44:07 osxsrv ProfileManager[1750] <Info>: auth_token doesn't exist
Jan 15 14:44:07 osxsrv ProfileManager[1750] <Info>: Filter chain halted as [:verify_auth_token] rendered_or_redirected.
Jan 15 14:44:07 osxsrv ProfileManager[1751] <Info>: Processing MagicController#do_magic (for 91.... at 2013-01-15 14:44:07) [POST]
Jan 15 14:44:07 osxsrv ProfileManager[1751] <Info>: auth_token doesn't exist
Jan 15 14:44:07 osxsrv ProfileManager[1751] <Info>: Filter chain halted as [:verify_auth_token] rendered_or_redirected.
Jan 15 14:44:07 osxsrv ProfileManager[1751] <Info>: Completed in 4ms (View: 1, DB: 14) | 403 Forbidden [http://osxsrv..../magic/do_magic]
Jan 15 14:44:07 osxsrv ProfileManager[1748] <Info>: Processing MagicController#do_magic (for 91.... at 2013-01-15 14:44:07) [POST]
Jan 15 14:44:07 osxsrv ProfileManager[1748] <Info>: auth_token doesn't exist
Jan 15 14:44:07 osxsrv ProfileManager[1748] <Info>: Filter chain halted as [:verify_auth_token] rendered_or_redirected.
Jan 15 14:44:07 osxsrv ProfileManager[1748] <Info>: Completed in 45ms (View: 1, DB: 43) | 403 Forbidden [http://osxsrv..../magic/do_magic]
Jan 15 14:44:07 osxsrv ProfileManager[1750] <Info>: Processing MagicController#do_magic (for 91.... at 2013-01-15 14:44:07) [POST]
Jan 15 14:44:07 osxsrv ProfileManager[1750] <Info>: auth_token doesn't exist
Jan 15 14:44:07 osxsrv ProfileManager[1750] <Info>: Filter chain halted as [:verify_auth_token] rendered_or_redirected.
Jan 15 14:44:07 osxsrv ProfileManager[1750] <Info>: Completed in 55ms (View: 0, DB: 1) | 403 Forbidden [http://osxsrv..../magic/do_magic]
Jan 15 14:44:08 osxsrv ProfileManager[1749] <Info>: Processing AuthenticationController#callback (for 91.... at 2013-01-15 14:44:08) [GET]
Jan 15 14:44:08 osxsrv ProfileManager[1749] <Info>: Redirected to https://osxsrv..../profilemanager/
Jan 15 14:44:08 osxsrv ProfileManager[1749] <Info>: Completed in 149ms (DB: 5) | 302 Found [http://osxsrv..../authentication/callback?auth_token=[FILTERED]]
I guess the '302 Found' is causing or explaining the problem.
I agree this might not be a Mac issue, so I still knock your doors hoping some of you could at least give a hint for what to search for !
If the pound configuration file is of interest, just ask, but this is pretty trivial, saying basically listen these protocols (http/https) on these ports (80/443) and according to Header content (check destination host) and reroute packet to LAN device (with given LAN IP address).
As the default port(s) of the Mac Mini Web Services may not be altered (so far I know), I guess I am stuck using 80 and 443 anyway.
Maybe should I invest time in changing my other apache server ports to some more exotic 8080 or 88 or whatever so Mac Mini Server Profile Manager default ports 80 and 443 are maintained and can be easily and directly rerouted to my Mac server without any reverse proxy along the way.
Thanks in advance for your help
Alx

HI All,
i'm also using reverse proxy technique to publish my server to the internet. The ip is used by twice domains. The problem is by using the profile manager
after login it redirects the url to the Local Area network addresse instead to the domain.
How to configure this on OS X Server and the Profile Manager Service?
Kind Regards
Oemer

Setup VPN on Mac Mini Server running OSX through a BT Hub Router

Hello everyone,
I know this question has been posted several times and I have looked at the suggested solutions, trying each of them. I think this is really down to my lack of knowledge hence hoping someone out there could point me to the right direction for more resources / information, please.
I am trying to setup a Mac Mini Server with VPN access. My server sits behind a BT Hub router. These are the steps that I have been through:
1. I am using the server app and after registering a free account with no-ip, I got myself a host name <myname>.ddns.net.
2. Then I setup the server using a domain name
3. I configured the DNS by first setting up a primary zone - zone: ddns.net. Then added machine record host name: <myname> pointing to my server which I have configured my router to assign a static ip address to it at 192.168.x.x
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5. Then, I also configured my router to port forward 500, 1701, 1723, and 4500 to my server at 192.168.x.x (I selected both TCP and UDP).
6. Finally, setup a user account with account name test and password abcd12345
7. Gone on my "client" machine which is basically my Samsung S4 handphone, selected VPN -> PPTP -> server address: <myname>.ddns.net -> entered account name test and password abcd12345.
This didn't work.
Then, I read some post about manually configure DHCP on the server app. Went on the server app, turned on DHCP and setup a network named TestDHCP. Assigned ip address range between that of the default DHCP range on my BT Hub router.
This does not work either.
Could someone please kindly help me with it? I am completely lost.
Thank you in advance.

To run a public VPN server behind an NAT gateway, you need to do the following:
1. Give the gateway either a static external address or a dynamic DNS name. The latter must be a DNS record on a public DNS registrar, not on the server itself. Also in the latter case, you must run a background process to keep the DNS record up to date when your IP address changes.
2. Give the VPN server a static address on the local network, and a hostname that is not in the top-level domain "local" (which is reserved for Bonjour.)
3. Forward external UDP ports 500, 1701, and 4500 (for L2TP) and TCP port 1723 (for PPTP) to the corresponding ports on the VPN server.
If your router is an Apple device, select the Network tab in AirPort Utility and click Network Options. In the sheet that opens, check the box marked
Allow incoming IPSec authentication
if it's not already checked, and save the change.
With a third-party router, there may be a similar setting.
4. Configure any firewall in use to pass this traffic.
5. Each client must have an address on a netblock that doesn't overlap the one assigned by the VPN endpoint. For example, if the endpoint assigns addresses in the 10.0.0.0/24 range, and the client has an address on a local network in the 10.0.1.0/24 range, that's OK, but if the local network is 10.0.1.0/16, there will be a conflict. To lessen the chance of such conflicts, it's best to assign addresses in a random sub-block of 10.0.0.0./0 with a 24-bit netmask.
6. "Back to My Mac" is incompatible with the VPN service. It must be disabled both on the server and on an AirPort router, if applicable.
If the server is directly connected to the Internet, see this blog post.

Mac Mini making strange noises through external speakers

I am experiencing a strange problem with my mac mini and my external speakers. I have two different sets of speakers and the problem occurs with both so I don't think its the speakers as I have never had any problems with them on my other computers. The Mini will make strange gurgling and hissing noises through the speakers at seemingly idle cpu times. Under heavy loads I get the gurgle occasionally but it seems more prevalent at idle times. After playing around with it I have noticed a direct correlation with my wireless connection and the noise. If the mini drops the network, which it does from time to time, I get the noises but if I disable airport then they stop. Have any other mini users experienced this? It's harmless but rather annoying because my mini is set up in my dorm room and we often have music playing and when I go to sleep I hear these weird noises.
Thanks for the feedback in advance.

The Airport sub-system in the mini is identical to any other Airport Extreme equipped Mac, with the addition of a riser board on which the AE card is mounted, and which no other Mac has.
If the mini suffered a design flaw in Airport implementation, then everyone would be hearing the same sound. Neither AE-eqipped minis I've got in my system exhibit any sign of it.
RF interference can get into an audio system in a number of ways - most commonly by direct injection (ie, something in the audio circuit such as a circuit board track or speaker wire) acting as an antenna and picking up an unwanted signal, or by FR breakthrough into the power circuit - usually through the transformer or rectifiers. In the first instance, a change in channel would change the transmission frequency and thus the sensitivity of the component to the signal (thus usually making it stop altogether) and in the second, would usually require a transmission power of significantly higher level than the few milliwatts used by Airport.
There are other possible causes too of course. Even a cordless phone in the same vicinity is capable of generating RF interference - but then stories of people listening to radio stations breaking through into phone lines, and even when opening oven doors are legion - and often true.
In the case of an Airport network, where the user has control over transmission power levels and frequency, a bit of tinkering with the two can resolve many FR interference issues. Incidentally, if you're interested (given your general technical background) a number of very informative sources on RFI (Radio Frequency Interference) are published for and by the amateur radio fraternity.

My Mac Mini screen has a blue tint

I got my Mac Mini around a week ago, one equipped with intel core duo. When I originally turned it on, the screen was fine until a popup came up and said that Mini's with intel processors that a firmware update was required. I followed the instructions and did the update, and when the update was complete the computer restarted and the screen had a blue-green tint to it and has had it since. I've tried to adjust it via the color and brightness on the screen but it's not working.

First open the Universal Access preference pane and in the 'seeing' tab, make sure that the slider for 'enhance contrast' is all the way to the left. Next, open the Displays preference panel and click on the 'color' tab. The click the 'calibrate' button. This will take you through a color/brightness/contrast set up procedure that may eliminate the problem.
There are two options in the calibration process, standard, which is the default option and has fewer adjustment screens, and expert, which is selected by checking the box for it on the first calibration screen and offers more adjustments. You can't do any harm with either since any settings you create can be discarded, or profile(s) you save can be deleted or ignored if necessary.
This won't necessarily resolve the problem, but if not, then it would indicate that there's an issue with the hardware - possibly just the connector on the back of the system, which needs to be fastened really tightly. If you can't readily resolve this, since your system is so new, I'd then suggest you call Apple.

HP w2207h with Mac Mini screen clipping trouble?

Hi,
My HP monitor is connected to the Mac Mini using the HDMI cable. The monitor seems to almost be working right. The only problem is the edges of the screen are cut off in the monitor. The Apple menu bar is completely cut off at the top and part of the Dock is cut off at the bottom. I have cycled through every resolution available in the Display settings in the Systems Preferences. I have also tried to use the physical menu on the monitor with no luck. I cannot seem to fix this. Any solutions?

You can use HDMI cable with HP w2207h directly,No need for other cable. but please follow these step.
1.Find LCD tv to set up first step.
2.Connect HDMI cable to LCD TV(i use Samsung) and adjust to HDMI source.
3.Open Mac mini.
4.Open system preference.
5.Click "display" you will see that the primary setting is :1680*1050 that HP monitor did not support.
6.Unplug HDMI cable from LCDtv (no need to shut down) and plug into HP w2207h.
7.the screen still blinking, it is ok.
8.On HP monitor, Push down button "Select" and "+" and the same time and hold it.
9.Use mouse or down button on keyboard to choose screen resolution to be "1600*900"
10. Then the screen will not blinking and you can use your lovely HP w2207h
if you want a high resolution on screen.
1.Buy new LED monitor that support 1680*1050 resolution.
2.Buy Mini displayport to DVI for digital signal Mini>DVI>HDMI.
Enjoy your MAC. because i am new Mac user with my MAC mini 2011
[email protected]

Cannot start Mac mini server after changing permissions

I have a two-day-old Mac mini (server version) and all was OK until I decided to change the permissions on both hard drives (and all enclosed folders and files) to give read/write access to administrators. I received quite a few error messages about invalid kernel file extensions (I think) which I elected to ignore or override. Then when trying to log off, the machine hung.
Safe reboot does not work. I have rebooted using <Command> S and get the following amongst the many messages:
Bug: launchctl.c:3557 (23930):17: ioctl(s6, SIOCAIFADDR_IN6, &ifra6) != -1
then at the end of display, I get the following as the last 4 lines:
launchctl: Dubious permissions on file (skipping): /Library/LaunchDaemons
launchctl: Dubious permissions on file (skipping): /System/Library/LaunchDaemons
launchctl: Dubious permissions on file (skipping): /etc/mach_init.d
AppleIntelCPUPowerManagement: initialization complete
There are no peripherals and I cannot try re-installing Snow Leopard for two reasons. First, I have no disk. More importantly, there is no CD drive - this is a Mac mini.
Please help!

HHMNY wrote:
I have a two-day-old Mac mini (server version) and all was OK until I decided to change the permissions on both hard drives (and all enclosed folders and files) to give read/write access to administrators.
doing this completed scrambled your system. you now have no choice but to reinstall Snow Leopard.
and in the future NEVER use "apply to enclosed items on ANY system created folders. and certainly NEVER EVER use it on the whole system drive.

My 2011 mac mini screen is black and has an "out of range" message

My 2011 mac mini is hooked up to a monitor and it has a black screen with an "out of range" message. I'm not sure how to fix it. everything is plugged in. please help!

Reset the PRAM > Resetting your Mac's PRAM and NVRAM
1. Shut down the computer.
2. Locate the following keys on the keyboard: Command, Option, P, and R. You will need to hold these keys down simultaneously in step 4.
3. Turn on the computer.
4. Press and hold the Command-Option-P-R keys. You must press this key combination before the gray screen appears.
5. Hold the keys down until the computer restarts and you hear the startup sound for the second time.
6. Release the keys.

Mac Mini display settings change after shutdown

After a shutdown, my Mac Mini's display settings will change on startup. This happens about 80% to 90% of the time.
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The strange thing is that it isn't a change in resolution. The resolution stays the same. It is always 1080p after every shutdown. But something in the display changes. Curved shaped look more pixelized, like some kind of smoothing or antialiasing has been turned off. And bright things are too bright, dark things too dark, so images lose some detail. It is also a bit painful on the eyes. Everything looks less vivid and very dull.
Someone in an older post suggested changing refresh rates. Unfortunately, my Mac Mini doesn't show that option. It was also suggested to connect to a different monitor to possibly make the options appear. But I don't have another monitor.
My current solution is to reset NVRAM (command+option+P+R) on startup. It seems to reset the display settings and fixes the display problem 100% of the time. But the thing is, I have to now keep doing this almost everytime I start up my Mac, which is annoying.
Is there a way to ensure that the Mac Mini keeps my display settings and prevent it from losing them on startup? Or perhaps, a way to reset display settings from within the OS without having to shutdown again and reset NVRAM?

hey p26grinz,
without the external monitor and after setting the display, will the setting remain ?
have you tried uninstalling the graphic driver from your unit and then testing it with generic driver ?
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Mac Mini screen resolution

Does anyone know how I can adjust the screen output on my mac mini to fit a Samsung 40 inch HD TV? Thanks!

What is the resolution of the TV?
How are you connecting it to the TV?
What model MIni do you have?
What resolution shows/displays now?

Mac mini screen resolution not synced with monitor

Hello! I have a Mac mini at home, equipped to an hp w2408h monitor via HDMI cable. Recently, I went to my friends' house with my Mac, plugging it in to their projector and playing Minecraft. However, I had to adjust the screen resolution, and once I got back and set everything up again, the monitor said I need to 'adjust screen resolution'. Is there any way to reset/sync/calibrate the resolution to the monitor, or do I have to go back and readjust the settings? Thanks! :3

Reset the NVRAM

Mac mini screen blurs/fuzzy

Hi I bought a mac a while ago, anyway I decided to begin using it but i'm noticing over time my screen becomes fluzzy / static (The monitors fine and i've tested it on my main pc)

What model Mac Min?
How is it connected?
What specific monitor?
Is the monitor connected top the PC the same way with same cable?
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2011 2.3GHz Mac mini screen flickers

Hi,
Guys, I'm really out of ideas. I'm using a mid-2011 2.3GHz Mac mini on a Samsung SyncMaster XL2370HD screen. The flickering seems to begin in the evening, after moderate use during the day. At first I believed it was a result of plugging in my earphones (I use them almost exclusively at that time), but I soon found out it has no effect. It's as if the screen dozes off for some seconds and quickly recovers, when sometimes, after intense flickering sessions, it just goes blank, in which case I have to restart the screen. To be more accurate, it's as if the connection to the Mac mini is lost; the screens works just fine. Most people who'd experienced screen problems used some sort of an Apple screen, so most of the advice given to them is irrelevant to me. I use the included HDMI-to-DVI adapter and a DVI-to-DVI cable. Any help would be much appriciated!

I use the same connection with my 2010 Mini and an LG display.
1. Check your connections to be sure that they are all snug and firmly plugged in.
2. Try a different DVI Cable.
3. Reset your Mini's PRAM, as per > Resetting your Mac's PRAM
Then if that does not help, take the Mini and Adapter to your local AASP and have them checked out. as per > Apple - Support - iMac - Service FAQ

Mac Mini, screen share setup over network out of the box?

Greetings,
Is it possible to screen share and setup a new Mac Mini out of the box? Ultimately, I'm trying to figure out if I really need to purchase a separate screen just to setup the machine.
Thanks,

Hello,
den.thed wrote:
What other equiptment (HDMI TV, computers, etc...) do you have?
see > Setting up new mac mini without a monitor - Google Search
I have a MacBook Pro Retina, iMac, MacBook Air. I'll check out that link.

Mac mini screen res changes through gcs634u

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