Gnome X11, Debian Testing, Nvidia GTX 1060, proprietary driver 450.66 With [GTK_CSD=1](https://searchfox.org/mozilla-central/rev/919607a3610222099fbfb0113c98b77888ebcbfb/widget/gtk/nsWindow.cpp#7813) I can reproduce this bug even on Gnome X11. mozilla.widget.use-argb-visuals=false can't fix it on Gnome X11. bug: GTK_CSD=1 mozregression --launch 20201008094950 --pref gfx.webrender.all:true -a about:support GTK_CSD=1 mozregression --launch 20201008094950 --pref gfx.webrender.all:true mozilla.widget.use-argb-visuals:false -a about:support GTK_CSD=1 mozregression --launch 20201008094950 --pref gfx.webrender.all:true mozilla.widget.use-argb-visuals:true -a about:support
Bug 1663273 Comment 46 Edit History
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Gnome X11, Debian Testing, Nvidia GTX 1060, proprietary driver 450.66 With [GTK_CSD=1](https://searchfox.org/mozilla-central/rev/919607a3610222099fbfb0113c98b77888ebcbfb/widget/gtk/nsWindow.cpp#7813) I can reproduce this bug even on Gnome X11. mozilla.widget.use-argb-visuals=false/true can't fix it on Gnome X11. bug: GTK_CSD=1 mozregression --launch 20201008094950 --pref gfx.webrender.all:true -a about:support GTK_CSD=1 mozregression --launch 20201008094950 --pref gfx.webrender.all:true mozilla.widget.use-argb-visuals:false -a about:support GTK_CSD=1 mozregression --launch 20201008094950 --pref gfx.webrender.all:true mozilla.widget.use-argb-visuals:true -a about:support