Custom modeline on X.Org: Difference between revisions
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<syntaxhighlight lang="bash" line="1"> | <syntaxhighlight lang="bash" line="1"> | ||
xrandr --newmode uw 295.08 2560 2744 3024 3488 1080 1081 1084 1128 -HSync +Vsync | xrandr --newmode uw 295.08 2560 2744 3024 3488 1080 1081 1084 1128 -HSync +Vsync | ||
xrandr | xrandr --addmode DP2 uw | ||
xrandr --output DP2 | xrandr --output DP2 --mode uw | ||
</syntaxhighlight> | </syntaxhighlight> | ||
{{Page lang|en}} | == Generating modeline == | ||
=== Generalized Timing Formula === | |||
[[wikipedia:Generalized_Timing_Formula|Wikipedia]] <syntaxhighlight> | |||
$ gtf | |||
usage: gtf x y refresh [-v|--verbose] [-f|--fbmode] [-x|--xorgmode] | |||
x : the desired horizontal resolution (required) | |||
y : the desired vertical resolution (required) | |||
refresh : the desired refresh rate (required) | |||
-v|--verbose : enable verbose printouts (traces each step of the computation) | |||
-f|--fbmode : output an fbset(8)-style mode description | |||
-x|--xorgmode : output an Xorg-style mode description (this is the default | |||
if no mode description is requested) | |||
</syntaxhighlight> | |||
== VESA Coordinated Video Timings == | |||
[[wikipedia:Coordinated_Video_Timings|Wikipedia]] | |||
The standard was adopted in 2002 and superseded the [[Custom modeline on X.Org#Generalized Timing Formula|Generalized Timing Formula]].<syntaxhighlight> | |||
$ cvt | |||
usage: cvt [-v|--verbose] [-r|--reduced] X Y [refresh] | |||
-v|--verbose : Warn about CVT standard adherence. | |||
-r|--reduced : Create a mode with reduced blanking (default: normal blanking). | |||
X : Desired horizontal resolution (multiple of 8, required). | |||
Y : Desired vertical resolution (required). | |||
refresh : Desired refresh rate (default: 60.0Hz). | |||
Calculates VESA CVT (Coordinated Video Timing) modelines for use with X. | |||
</syntaxhighlight>{{Page lang|en}} | |||
[[Category:Notes]] | [[Category:Notes]] | ||
Latest revision as of 14:37, 22 March 2025
For running X
xrandr --newmode uw 295.08 2560 2744 3024 3488 1080 1081 1084 1128 -HSync +Vsync
xrandr --addmode DP2 uw
xrandr --output DP2 --mode uw
Generating modeline
Generalized Timing Formula
$ gtf
usage: gtf x y refresh [-v|--verbose] [-f|--fbmode] [-x|--xorgmode]
x : the desired horizontal resolution (required)
y : the desired vertical resolution (required)
refresh : the desired refresh rate (required)
-v|--verbose : enable verbose printouts (traces each step of the computation)
-f|--fbmode : output an fbset(8)-style mode description
-x|--xorgmode : output an Xorg-style mode description (this is the default
if no mode description is requested)VESA Coordinated Video Timings
The standard was adopted in 2002 and superseded the Generalized Timing Formula.
$ cvt
usage: cvt [-v|--verbose] [-r|--reduced] X Y [refresh]
-v|--verbose : Warn about CVT standard adherence.
-r|--reduced : Create a mode with reduced blanking (default: normal blanking).
X : Desired horizontal resolution (multiple of 8, required).
Y : Desired vertical resolution (required).
refresh : Desired refresh rate (default: 60.0Hz).
Calculates VESA CVT (Coordinated Video Timing) modelines for use with X.