[Bug 1987976] Re: firefox black window

[Michelet]

Oh I found that https://doc.ubuntu-fr.org/carte_graphique. Result is:
nicolas at nicolas-fixe:~$ lspci -vnn | grep -A 12 '\[030[02]\]' | grep -Ei "vga|3d|display|kernel"
01:05.0 VGA compatible controller [0300]: Advanced Micro Devices, Inc. [AMD/ATI] RS880 [Radeon HD 4200] [1002:9710] (prog-if 00 [VGA controller])
	Kernel driver in use: radeon
	Kernel modules: radeon
nicolas at nicolas-fixe:~$ sudo lshw -enable pci -class display
[sudo] Mot de passe de nicolas : 
  *-display                 
       description: VGA compatible controller
       produit: RS880 [Radeon HD 4200]
       fabricant: Advanced Micro Devices, Inc. [AMD/ATI]
       identifiant matériel: 5
       information bus: pci at 0000:01:05.0
       nom logique: /dev/fb0
       version: 00
       bits: 32 bits
       horloge: 33MHz
       fonctionnalités: pm msi vga_controller bus_master cap_list rom fb
       configuration : depth=32 driver=radeon latency=0 resolution=1920,1080
       ressources : irq:18 mémoire:d0000000-dfffffff portE/S:d000(taille=256) mémoire:fe9f0000-fe9fffff mémoire:fe800000-fe8fffff mémoire:c0000-dffff
nicolas at nicolas-fixe:~$ xrandr
Screen 0: minimum 16 x 16, current 1920 x 1080, maximum 32767 x 32767
XWAYLAND0 connected 1920x1080+0+0 (normal left inverted right x axis y axis) 480mm x 270mm
   1920x1080     59.96*+
   1440x1080     59.99  
   1400x1050     59.98  
   1280x1024     59.89  
   1280x960      59.94  
   1152x864      59.96  
   1024x768      59.92  
   800x600       59.86  
   640x480       59.38  
   320x240       59.52  
   1680x1050     59.95  
   1440x900      59.89  
   1280x800      59.81  
   720x480       59.71  
   640x400       59.95  
   320x200       58.96  
   1600x900      59.95  
   1368x768      59.88  
   1280x720      59.86  
   1024x576      59.90  
   864x486       59.92  
   720x400       59.55  
   640x350       59.77

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Title:
  firefox black window

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