The three reasons why the resolution of win7 system can not be adjusted and the solution

The three reasons why the resolution of win7 system can't be adjusted and the solution:

Solution 1: I need to adjust the resolution, I can't adjust the resolution first, first To see if the resolution mode of the screen is supported.

View Method:

1) Right click on the blank space of the desktop, select “Screen Resolution” in the menu <;

2, enter to change the appearance of the monitor After the interface, click on the right side of the "advanced settings", in the Universal Plug and Play monitor window, select "adjust" & rsquo;, click the "list all modes" button, take a look at all the mode list, Whether to support the resolution you set, if not, it means not supported.

3, there is also an unsupported, that is, an external display is used, the external display adopts the copy mode, because the resolution can only be set to the maximum resolution in the copy mode, that is, the external device and the built-in The maximum resolution of the display.

For example, the built-in resolution of the computer is 1366X768, while the external one is 1280X768. Then, in the copy mode, the maximum resolution can only be set to 1280X768. If you want to adjust to 1366X768, you can't adjust it.

Solution 2:

If it is not because of the mode problem, then the driver of the graphics card is damaged. If you encounter such a situation, you can solve it by two methods. Manually update the driver, one is to use the driver wizard to update;

Manually update the driver method:

1, right click on the desktop "Computer" icon, select “Manage”;

2. In the computer management window, first find and select "Set Manager" in the left directory;

3, when displaying After the right window, find the “display adapter”, then open it to see if there is a yellow warning sign on the device under it. If it is, it means the graphics card driver is damaged, you need to update it, before the update. Ok, uninstall the old driver.

4. When uninstalling, it is best to delete the original driver, so as not to be reinstalled by the system again, check "Delete the driver software of this device", press "Determine" ”.

5. If you still can't install the driver after uninstalling, you can enable driver signing, install the driver, and how to enable driver signing. See the following article.

6, after the old driver is uninstalled, you can update the graphics card driver, right click on the graphics card, select “ update driver & rdquo; this one.

7. Enter the update wizard window, first select “ browse the computer to find the driver software & rdquo; this one.

8, after entering the next window, fill in the driver storage path to be updated (you need to back up the driver of the graphics card before, there is a driver CD), if you do not remember the path , click “ Browse”.

9, open the browse folder window, find the driver that was backed up before, the path can only select the folder with the driver, can not select a single file, OK.

10. After the path is loaded, check the subfolder ” and press OK to update the graphics card driver.

Manually update the driver method:

If there is no backup before, there is no driver CD, you can only download the corresponding driver online.

1 There will be a lot of updates or fixes after the test. Just update the driver, so click “View all drivers”.

Note: Because the driver version is different, its options will be different, depending on your own version.

2, in all upgradeable or updated drivers, check the "graphics card", then click a button to install, the driver wizard will automatically download from the Internet and the computer Driver, then click “Install & rdquo;

Solution 3:

1. If it is not a mode problem or a driver problem, it can only be a hardware problem. The most common is that the monitor data cable is not plugged in. , or the data line has a broken line.

Workaround: Re-link the data line first, if not, try to change the new data connection.

2, may also be a problem with the graphics card, common for the graphics card loose

Solution: Can be re-plugged once to try.

The above is the introduction of the three reasons and solutions for the resolution of the win7 system, it is very important to adjust the win7 system to a suitable resolution, if you also encounter win7 system can not adjust the resolution For the case of rate, please refer to the reasons and methods described above.