C'est normal que 32 ne fonctionne pas. C'est une nouveauté de XFree 4.
Voir dans XF86Config.5 à propos de 'Depth' :
"This entry specifies what colour depth the Display subsection is to be used for. This entry is usually mandatory, but it may be omitted in some cases providing an FbBpp entry is present. The range of depth values that are allowed depends on the driver. Most driver support 8, 15, 16 and 24. Some also support 1 and/or 4, and some may support other values (like 30). Note: depth means the number of bits in a pixel that are actually used to determine the pixel colour. 32 is not a valid depth value. Most hardware that uses 32 bits per pixel only uses 24 of them to hold the colour information, which means that the colour depth is 24, not 32."
[^] # Re: C'est pas encore ça...
Posté par Christophe Merlet (site web personnel) . En réponse à la dépêche XFree86 4.0.2 disponible. Évalué à 1.
Voir dans XF86Config.5 à propos de 'Depth' :
"This entry specifies what colour depth the Display subsection is to be used for. This entry is usually mandatory, but it may be omitted in some cases providing an FbBpp entry is present. The range of depth values that are allowed depends on the driver. Most driver support 8, 15, 16 and 24. Some also support 1 and/or 4, and some may support other values (like 30). Note: depth means the number of bits in a pixel that are actually used to determine the pixel colour. 32 is not a valid depth value. Most hardware that uses 32 bits per pixel only uses 24 of them to hold the colour information, which means that the colour depth is 24, not 32."