Du­pli­cate a screen on mul­ti­ple mon­i­tors

Tech Advisor - - HOW TO -

Jim Martin shows how to du­pli­cate a com­puter’s screen, so that it can be seen on dif­fer­ent mon­i­tors

Win­dows makes it sur­pris­ingly easy to work with mul­ti­ple mon­i­tors, but in most cases you’ll be work­ing with two, or per­haps three at a push. Two is great for hav­ing sev­eral ap­pli­ca­tions vis­i­ble at once, while three is great for gam­ing – if your graph­ics card is up to the job. Here we’re us­ing Win­dows 8.1, but the process is al­most iden­ti­cal in Win­dows 7.

Du­pli­cate screen on mul­ti­ple mon­i­tors

When you first con­nect a sec­ond mon­i­tor, Win­dows should de­tect it and au­to­mat­i­cally du­pli­cate the screen on both dis­plays. This is the case re­gard­less of whether you have a PC with two mon­i­tors or a lap­top with a screen or pro­jec­tor at­tached.

If you don’t see an im­age on the sec­ond screen, look for a func­tion key on the top row of keys on your lap­top which shows two mon­i­tors. Press the Fn key and the ap­pro­pri­ate func­tion key (F5 on the lap­top be­low, for ex­am­ple) and it should tog­gle through the var­i­ous con­fig­u­ra­tions: lap­top dis­play only, lap­top and ex­ter­nal screen, and ex­ter­nal screen only. You can also try press­ing the Win­dows key and P at the same time for the same ef­fect.

If you still have no im­age, go to the Win­dows desk­top, right-click and choose screen res­o­lu­tion. If you see only one screen in the drop­down Dis­play list, try click­ing the De­tect but­ton to force Win­dows to scan for the sec­ond screen. If it has de­tected it, you can use the other op­tions in this win­dow to choose how Win­dows deals with mul­ti­ple mon­i­tors.

Since you want to du­pli­cate the screens and have the same im­age on both, make sure ‘Du­pli­cate these dis­plays’ is se­lected in the Mul­ti­ple dis­plays drop-down menu (see bot­tom-left im­age).

Note that du­pli­cat­ing dis­plays is of­ten a com­pro­mise if the screens have dif­fer­ent res­o­lu­tions or as­pect ra­tios. For ex­am­ple, if you hook up a 1024x768 pro­jec­tor to a lap­top with a 1366x768 screen, both will run at 1024x768, and you’ll end up with black bars on the left and right on your lap­top screen.

Ex­tend the desk­top across mul­ti­ple mon­i­tors

As­sum­ing you’re not us­ing a pro­jec­tor, which is when it makes sense to du­pli­cate the screen, then you prob­a­bly want to ex­tend the desk­top to have dif­fer­ent things on each screen. To do that, choose ‘Ex­tend these dis­plays’ in­stead of ‘Du­pli­cate these dis­plays’.

You can se­lect a mon­i­tor in the di­a­gram at the top and drag it to the po­si­tion it’s in on your desk. Here we’ve put the sec­ond mon­i­tor on the left of the lap­top be­cause it de­faults to the right. You can move the smaller screen up and down, too.

You’ll also no­tice you can se­lect dif­fer­ent res­o­lu­tions for each screen, but you have to se­lect each screen in turn. Only one of the mon­i­tors can be your main dis­play. In Win­dows 7, that means it will be the only mon­i­tor with a task bar and start but­ton. In Win­dows 8.1, you get those on all screens, but only the no­ti­fi­ca­tion area and clock on the main screen.

Newspapers in English

Newspapers from UK

© PressReader. All rights reserved.