Depending on your model, some models allow an oversized desktop, but everything starts looking like tunnel, as you need to pan around. Oversized desktops might not let some oversized desktop sensitive applications to open.
Some oversized resolution of an FHD display might me 1152 pixels or 1440 pixels, but setting these resolutions might show the entire screen, depending on your model, whether it has 'auxiliary' pixels, make a tunnel, lower the color depth, show blurry letters, or even turn black and go dead in the worst cases of very oversized desktop sensitive desktop monitors.
I suggest not trying this unless you know that is is true non-oversized desktop sensitive monitors or true very oversized desktop-sensitive monitors. All monitors have the option to hide modes that monitor can't display properly or not. In that case, when a monitor can't display properly, it is the GPU to show the picture which might look poor, depending on how sensitive your monitor is to an oversized desktop.
In that case, you must call the computer model maker to see if it's sensitive to an oversized desktop or not.
"Intel HD 3000 graphics and Radeon HD 6490M GPU" -- so which is it? Both are graphics processors with way more capability than 1366X768. The Raedon maxes at 2560x1600, the Intel at 1920x1080. Since you didn't give the specific DV6 model i can't guess what display is in it, but I would guess it will support a much greater resolution. – Tyson – 2014-07-25T22:39:51.630
1By getting a higher resolution screen... – Daniel Beck – 2012-05-20T11:25:37.097
what os you use, windows or ubuntu (linux) – Perdana Putra – 2012-05-20T11:27:24.343
3.. on a laptop?? I mean that is there any hack to it, maybe just virtually increase it and not really. – VirMatrix – 2012-05-20T11:27:41.097
Windows and Ubunut both.. – VirMatrix – 2012-05-20T11:28:00.427
that's ok, you can edit your comment; there's no need to make corrections in the new comments how about the version ? Ubuntu 10.04? – Perdana Putra – 2012-05-20T11:38:48.383
It very much depends on the maximum resolution of your screen, you cannot suddenly create more pixels on your screen. Most likely your machine is detecting the correct upper limit on your resolution. – madmaze – 2012-05-20T11:41:23.653
So am I right that you are asking about increasing desktop size so it will have greater dimensions (in pixels) than display itself, and maybe you want it to be scrollable too? – Sampo Sarrala - codidact.org – 2012-05-20T11:54:57.480
Version Ubuntu 12.04 LTS, My screen has max 1366X768 and I want to increase the resolution internally, I know the max this screen can populate is 1366X768 so increse then scale internally to 1366X768 – VirMatrix – 2012-05-21T14:25:11.860
VirMatrix: It sounds like you either are confused about resolution in general or using the wrong term. Give an answer to why you want to increase the resolution beyond 1366x768, and people will be able to help you better. – Daniel Andersson – 2012-05-21T15:37:04.917
Use external monitor temporarily. You can simply switch to only external monitor and use its native resolution. – Revaz – 2012-12-10T13:18:22.933
I am doing just that for now. – VirMatrix – 2013-01-03T09:31:37.187