I went ahead and merged this to all branches, as it is generally useful, in particular for the Wind River BSPs that will eventually appear for the platform.
Bruce In message: [v6.18][genericarm64][PATCH 0/1] X11 HDMI fixes for AMD KV260 on 09/01/2026 Mikko Rapeli wrote: > Yocto core-image-sato comes with X11/Xorg and currently startup works > but there is no output drawn to an HDMI display on AMD KV260. > Xorg falls back to using 24bpp defaults which don't work on KV260. > Workaround is to set 16bpp in Xorg config or add this patch to > kernel where xlnx fb driver reports to userspace and X11 > that it prefers 16bpp. > > Submitted to upstream but unfortunately there are several > patches in this area which have the same effect but none > of them have been merged in a long time. Thus this simple > one liner patch should be applied for now until other fixes > or improvements make this obsolete. > > https://lore.kernel.org/dri-devel/[email protected]/ > https://lore.kernel.org/dri-devel/aUkSclVzlRCXDdug@nuoska/ > > Mikko Rapeli (1): > drm: xlnx: zynqmp_kms: set preferred_depth to 16 bpp > > drivers/gpu/drm/xlnx/zynqmp_kms.c | 1 + > 1 file changed, 1 insertion(+) > > -- > 2.34.1 >
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