[Solved] xrandr problem

Legacy Netrunner 13.06
1

Hi

using xrandr I should be able to

xrandr --newmode "1920x1200_60.00" 193.25 1920 2056 2256 2592 1200 1203 1209 1245 -hsync +vsync xrandr --addmode VGA-0 1920x1200_60.00 xrandr --output VGA-0 --mode 1920x1200_60.00

one at a time of course
however when using addmode I get the following error message

xrandr --addmode VGA-0 1920x1200_60.00 X Error of failed request: BadMatch (invalid parameter attributes) Major opcode of failed request: 153 (RANDR) Minor opcode of failed request: 18 (RRAddOutputMode) Serial number of failed request: 39 Current serial number in output stream: 40

Now I know my monitor can do this resolution as I got it working under other distro’s

Doing research someone suggested

Driver "nvidia" Option "ModeValidation" "AllowNon60hzmodesDFPModes, NoEDIDDFPMaxSizeCheck, NoVertRefreshCheck, NoHorizSyncCheck, NoDFPNativeResolutionCheck, NoMaxSizeCheck, NoMaxPClkCheck, AllowNonEdidModes, NoEdidMaxPClkCheck"

Now I can sort of see what they are on about ie in plain English ignore your found limitations of the monitor and just do as you’re told

but I have some questions

  1. does this apply here in Netrunner
  2. if so where and how do I apply it
  3. if not, how do I set my monitor to the desired resolution

Thanks in advance Zeb.

ps I really am a noob so please keep replies simply and dont assume I know what you’re talking about, please explain step by step

2

I think this line is wrong

but I am not sure.
Is this working for you ?

xrandr --fb 1920x1200
3

the newmode line comes from

cvt 1920 1200

will give your line a try and report back - thank you

4

ok that did not work - I forgot to mention that I have three screens
DVI-D-0 1920x1080
DVI-D-1 1680x1050
VGA-0 1360x768

now the last screen can go 1920x1200 but I need to tell it that as Netrunner can’t work it out automatically. As per my first post I think I need to tell it

Option "ModeValidation" "AllowNon60hzmodesDFPModes, NoEDIDDFPMaxSizeCheck, NoVertRefreshCheck, NoHorizSyncCheck, NoDFPNativeResolutionCheck, NoMaxSizeCheck, NoMaxPClkCheck,  AllowNonEdidModes, NoEdidMaxPClkCheck"

but do not know what file to add this too or where it resides

Zeb…

5

You have to add this to your Section Device of your /etc/X11/xorg.conf .

6

Excellent - all solved. Thanks for the Guidance Leszek

I will learn (and more importantly - try and remember)

Zeb…