Hello,

I tested the latest Git kernel with my VAPOR-X Radeon HD5870 1GB GDDR5 PCI-E DUAL DVI-I/HDMI/DP on my PASEMI Nemo board today.
Unfortunately it has the same issue like my FSL P5040 board.

I think it depends on which graphics card is used.

It could be, that FSL P5020 boards are also affected.

dmesg (via null modem RS-232 serial cable): https://www.xenosoft.de/PuTTY_P5040_U-Boot.log

Please check the drm-next-2024-09-19 updates: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=de848da12f752170c2ebe114804a985314fd5a6a

Thanks,
Christian