setup 2 displays as one big screen

Mgiese · Veteran Joined: 23 Mar 2005 Posts: 1609 Location: indiana

hi there,

i am running a gtx 1050 nvidia card, with 2 monitors connected to it via dvi & hdmi

using "nvidia-settings" tool or xfce`s integrated settings->display program

i set up the diplays and can move windows from one screen to another. i have xinerama useflag enabled and system recompiled. i installed xrandr plus read a dozen forum posts regarding my issue. i want that when i enlarge a window it is being displayed on both monitors (it should appear as one big screen) but i am failing at getting it to work. any help is very much aprecciated....

Mgiese · Veteran Joined: 23 Mar 2005 Posts: 1609 Location: indiana

krinn · Watchman Joined: 02 May 2003 Posts: 7470

Mgiese · Veteran Joined: 23 Mar 2005 Posts: 1609 Location: indiana

krinn · Watchman Joined: 02 May 2003 Posts: 7470

like i said, not all games allow this big resolution, if you want see if it really work or not, try openttd, at least this one works
you can also create smaller resolution 1024x768x2 metamodes for a game which has a 2048 limit
ps: the _60 is a "custom" setting, while people name it _refresh, xorg is not taking the _60 has a value, more it is a special name ; which mean if it's only a name and not a refresh value that your 1920x1080_60 refer to a name that doesn't exist (it should be a name of a modeline)
try looking in xorg.log if really the 1920x1080_60 was use or if the driver itself has decide to switch to 1920x1080 because it's your native resolution of your monitor.
ps2: metamodes of 1920x1080 null and null, 1920x1080 is not usable "in game", while this is a correct value (you can switch from one to other using ctrl+alt+"+" key) to have left then right monitor disable, the driver will use the metamodes the game is asking the resolution for: which mean one or the other as both have same resolution, loosing control on which monitor you really want see the game. Using different resolution you remove the blur on which metamodes to use, ie: "metamodes" "1920x1080, null; null, 1024x768" would mean you can play a game using left monitor by setting the game in 1920x1080 or playing it in right monitor using 1024x786 in the game

have a look at my monitor thread just to figure out things by yourself, it's more a thread for the monitor rather than dual monitor usage but you'll see modeline and xorg.log showing name: https://forums.gentoo.org/viewtopic-t-894978.html