Make permanent resolution changes in Linux Mint 12?

[linuxidemil]

Hey all, new here.. just having a problem with my resolution settings.. so, I have a 23' TV connected to my PC with DVI ( DVI to HDMI actually ), and the problem is it doesn't detect the highest resolution ( 1920x1080 ) by default..

I know how to add the resolution with xrandr and output it etc.. but how do you make it permanent? In older versions of Linux ( Ubuntu 10.10 for example ) the resolution is detected by default, it could be because Xorg was actually useful back then, not really sure.. I also tried editing the Xorg file but it's empty and of no use..

Terminal codes used to make the custom resolution -

Code: Select all

xrandr --newmode "1920x1080_60.00"  172.80  1920 2040 2248 2576  1080 1081 1084 1118  -HSync +Vsync

xrandr --addmode DVI1 1920x1080_60.00

xrandr --output DVI1 --mode 1920x1080_60.00

The resolution shows perfectly just for the log in session, but after I log out or reboot, everything reverts.. is there a way possible to make these changed permanent in Linux Mint 12?

Oh and the highest resolution I get by default is 1360x768..

Thanks..

[Danko8321]

Yeah, sorry about that, I should have paid more attention. Well, since you are using two displays at a time (mirror displays) it won't let you go further than the resolution supported by the screen that has the lowest resolution (in this case, that would be your laptop screen, featuring 1360X768 vs the 1900X1280 that your TV offers). Quick and dirty fix: Disable your laptop screen using the "Monitors" app. It will make your TV the only screen and it will get a better resolution hope that helps. Danko.

[linuxidemil]

Yeah, sorry about that, I should have paid more attention. Well, since you are using two displays at a time (mirror displays) it won't let you go further than the resolution supported by the screen that has the lowest resolution (in this case, that would be your laptop screen, featuring 1360X768 vs the 1900X1280 that your TV offers). Quick and dirty fix: Disable your laptop screen using the "Monitors" app. It will make your TV the only screen and it will get a better resolution hope that helps. Danko.

Sorry for the late reply, I fixed this problem a few days ago, and I'll add it here later, btw it's a desktop PC not a laptop, and no it's not dual monitor, basically instead of connecting a small monitor I connect my TV, but because I don't have a D-SUB cable I had to use a DVI to HDMI.. I could've also had the ability to do a DVI to D-SUB conversion but I couldn't find any adapters.. anyway.. problem's fixed mate..

I'll add the problem here in the next couple of days, have to find the code stored on one of my USB sticks ^^