I couldn't find anyone else with this problem on the forum which is surprising since I am having this identical issue with not one, but two ACER AL1912 monitors.
This problem has occurred when the monitor was accidentally left on for a length of time (5 days or more). The bottom quarter of the screen becomes distorted and extremely stretched downwards, making it impossible to use anything in that space (thus making it impossible to use the display, really).
I have a two monitor set-up. This had occurred on one of the monitors in the past a couple times after accidentally leaving it on as above. I switched monitors and did enough tests to determine that the problem indeed originated from the Acer and not my computer, cables, or video card. As mysteriously as the problem occurs, a solution in the past was to leave the monitor off for a week or more (I travel a lot so this is feasible). Most of the time after it's been off for a couple weeks the monitor displays normally. The last time this happened I just made sure that I switched the monitor off so there was no future problem ... until now.
Recently I was out of town for a month and a colleague used my computer set-up. You guessed it: he left both monitors on after switching off the computer and they were on for over a week. Now, upon returning, both monitors are distorted and stretched in the bottom corner. Leaving them off for an extended time is now not an option as I have a project due in a couple weeks. And with both monitors afflicted I can't just use a 'good' one. Help!
If it makes any difference, I'm running these off a Macintosh G4 in a dual monitor set-up.
Thanks in advance.
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there are several things you can do, change the screen resolution, or change the size of the text, to do this go to Control Panel - Appearance and Personalization - Display then click the 125% radio button and apply. in versions of windows older than windows 7, this process may be slightly different, this option may be in the ease of access centre. if you have trouble changing either of these things type your operating system and change screen resolution or change text size into google. to change the screen resolution go to control panel and in appearance and personalisation click adjust screen resolution, this will make everything look bigger, try to keep near the same aspect ratio or photos and text will look distorted or stretched.
Depending upon the screen resolution that has been set in Display, the image will be distorted on these wide screen monitors. Create a large circle image using a draw program such as Paint (hold down the Shift key as you create the circle as it will draw a perfect circle). Open Control Panel - Display - Settings tab and adjust the Screen resolution slider, increase or decrease the screen resolution then bring the circle image to the front and check the image, if the circle is still distorted then change the screen resolution and check the circle again until you are satisfied with the image of the circle. When you are satisfied then click apply.
Change your screen resolution to the highest setting first, in control panel, appearance/ themes. Next Push smart button on bottom right of monitor. Cinema mode should be highlighted hit autoset on monitor. Next hit the FUN button and highlight the 4:3 screen setting. This will expand your image to fit the screen without giving it that stretched and distorted appearance.
Solution goes this way, to maintain the aspect ratio of the monitor, take note of this. Your HP 10inch notebook have different resolution compare to your additional monitor, But I'm sure you selected the dual view mode or the duplicate mode that is why you have distorted display on your additional monitor, to let the additional monitor decide and maximize its resolution, try using the extended view option, you can change the resolution of your additional monitor without affecting the resolution of your 10 inch laptop.
Your screen's ratio is oriented to playing wide screen formatted movies. Set your screen resolution to a ratio that's more or less 2 to 1 and you'll have a more realistic depiction of people on photos.
What kind of monitor? They can all be adjusted for width and height by using the buttons along the bottom of the screen. Often it can be confusing and a bit of a pain but look under the monitor menu for 2 sets of icons that look like 2 boxes on top of each other both horizontal and vertical. That is how you adjust it.
Most LCD monitors have a couple of control buttons at the top or on the side. Inside the menu, there should be an option called "Auto Adjust" which senses the input signal and resolution, and then shifts the monitor to match it. Have you tried to auto-adjust the screen? There may even be a button called "Auto" on the monitor.
Depending on the length of time the monitor has been used, this would often indicate a power supply problem, more specifically a low main B+. Since you are familiar with electronic components & circuitry, you might want to check the big filter capacitor right after the bridge diode on the hotside, likewise the capacitor after the single diode on the secondary side and or the capacitor along the + rail going to the FBT/HOT.
If your computer does not have a video card that supports the correct
resolutions for the widescreen monitors, then your picture may get
stretched. Much like watching normal tv programs on a an hd set. It
will eitther strech or cut off the picture.
Try different settings in you computer display settings.