The monitor flashes

Hello everyone!
I installed Arch only two days ago and already gives me problems.Yesterday I installed some programs (nothing special, OpenOffice, Chrome, Gathering, VLC, emesene, Gimp) and a couple of programs that are proven not compatible (osmosis and Talika). I uninstalled Talika, but I could not Osmos. However today I found that with the monitor (as if it were a refresh) every 30 seconds exactly flashes (goes black and after 1,2 seconds comes back). The system runs normally and is neither stopped or slowed down by this thing. May depend on what? Two days ago there wasn't this problem!
Thank's to everyone and sorry for the english!

Sure. Here's one
https://bbs.archlinux.org/viewtopic.php?id=112126

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The monitor flashes colors when it sits for awhile. When I hit enter it sill stop.

About 5 days ago the monitor, HP, would start flashing colors, red, green, white, blue,etc. until I pushed enter. The colors appear one at a time and fill the whole screen.
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Is this only happening in Firefox?
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My external monitor flashes random colors after waking up from sleep?

Whenever I wake up my Mac Mini, the monitor flashes thru many different colors..... red, blue, greeen..... maybe some other ones. Sometimes it does this for a few seconds and then gets to the log in screeen and sometimes it does if for 30 seconds or longer. I have a Samsung Monitor hooked up via HDMI cable. I have had this computer for close to a year and it only started doing this over the last month. Once I can log in I don't seem to have any performance issues, I'm just woried it will get worse over time..... Maybe never stop flashing.

Hi, installed any software/updates in the last month?
I wonder if it's a variation of this, of which I've seen many different symptoms...
Resolution
Move the mouse or trackpad cursor over the center area of the login window so you can see the user icons. Click on the icon of the user that you would like to login as, type in the user's password, and press Return.
If the login window is configured to show only the name and password fields, type in the user's name and password into the fields, and press Return (even if you cannot see the rest of the login window).
Additional Information
This issue will not occur if the display is not sleeping when the account is logged out. Use the steps below to confirm that the account is not configured to log out automatically while the display is sleeping:
Open System Preferences > Security & Privacy > General. Click the padlock to unlock the preference pane and enter your admin password. Click the Advanced button at the bottom, then see if the option "Log out after N minutes of inactivity" (where N is the number of minutes) is enabled.
Open System Preferences > Energy Saver and configure Display Sleep to occur after the account is logged out, by dragging the slider to a number of minutes that is greater than N was set to in the previous step.
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http://support.apple.com/kb/TS4135?viewlocale=en_US

My secondary monitor flashes and blacks out after the 10.7 install. Any ideas on how to fix this?

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Flashes on the monitor

I am writing to see whether there is an explanation or solution even, to some odd behaviour with my mother's Mini - on all displays which has been hooked up to it, the screen flashes when sending and receiving messages on iChat (I think it is only with iChat one sees this), almost like the effect from PhotoBooth.
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Yes, that was it! And I am almost blushing out of being ashamed! Hahaha! Why didn't I think of that? Well, perhaps I cannot understand how that option has been chosen. I can't remember I've done it and the only other ones aside from my mother who've used it, are my sister and my brother and neither one know the Mac very well.
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I am using a Macbook Pro with an External Dell 1908fp 19" monitor via a Thunderbolt to DVI adaptor all fine.
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#2 monitor flashes static image

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Hi DJ
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Good Luck P

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It sounds like preferences, log back into your normal account and check your Preferences Thoroughly;
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-mj
[email protected]

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Please fix it!

use the last combination the three finger reflash you will lose all your data but your phone might work, if the last code does not work you ought to contact either provider or nokia care point for assistance
*#7780# - Restore factory settings - resets all the settings to the default ( you will not lose any data)
Make sure you back up your data as you will lose all of it when you perform option 2 or 3 on this list.
*#7370# - Reformat your phone
This you perform as a last resort. Nothing else is working. Turn off your phone, hold the following buttons while pressing the power button. (the default code is 12345)
re-flash - hold the following buttons *, 3 (number button) and talk/green key. turn on the phone and do not release those buttons until you see the Nokia boot up screen.
If these codes are not working the only thing for you to do is contact your Nokia Care Center/Service.
You know what I love about you the most, the fact that you are not me ! In love with technology and all that it can offer. Join me in discovery....

Hi, I just bought an old Macintosh LC. Monitor flashes/ticks upon boot and it eventually chimes, restarts then chimes again then boots up. Any ideas what this might be?

Hi, I just bought an old Macintosh LC. Monitor flashes/ticks upon boot and it eventually chimes, restarts then chimes again then boots up. Any ideas what this might be?

Any Mac older than 4 years may need a new PRAM battery. Though a loose video connector could cause the problem, since those are thumbscrews that can get damaged on the back of the machine. The LC was the first Mac I actually owned!
A Mac usergroup may have someone familiar with the machine who can help:
http://www.apple.com/usergroups/

The monitor flashes

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