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modetest — Diagnose Direct Rendering Manager and Kernel Mode Setting. More information: <https://xilinx-wiki.at

Submitted by: @import:tldr-pages·Mar 2, 2026·

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commandrenderingdirectdiagnoseandmodetestclimanager

linux

Problem

How to use the modetest command: Diagnose Direct Rendering Manager and Kernel Mode Setting. More information: <https://xilinx-wiki.atlassian.net/wiki/spaces/A/pages/18841850/Video_Mixer#modetest>.

Solution

modetest — Diagnose Direct Rendering Manager and Kernel Mode Setting. More information: <https://xilinx-wiki.atlassian.net/wiki/spaces/A/pages/18841850/Video_Mixer#modetest>.

List connectors and their available modes for a specific driver:

modetest -M {{mgag200}} -c

Set the resolution of a connector:

sudo modetest -M {{mgag200}} -s {{connector_id}}:{{1600}}x{{1200}}

Code Snippets

List connectors and their available modes for a specific driver

modetest -M {{mgag200}} -c

Set the resolution of a connector

sudo modetest -M {{mgag200}} -s {{connector_id}}:{{1600}}x{{1200}}

Context

tldr-pages: linux/modetest

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