This is Y.C. Chen at ASPEED Technology Inc. The in-box “ast” drm driver will casue linux boot hanged if P2A bridge is disabled by BMC fw. We had upstreamed the patch to linux kernel org and here are the related link: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/drivers/gpu/drm/ast?id=71f677a91046599ece96ebab21df956ce909c456. Is it possible to include this patch in later SLES update?
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