File 10-chromium.conf of Package Mesa
<driconf> <device driver="radeonsi"> <application name="Chromium" executable="chromium"> <option name="allow_rgb10_configs" value="false" /> </application> </device> </driconf>
<driconf> <device driver="radeonsi"> <application name="Chromium" executable="chromium"> <option name="allow_rgb10_configs" value="false" /> </application> </device> </driconf>