After trying out kernel v5.14-rc5 on my system, I no longer get any display output. Checking dmesg, I found it's because my DRM driver (nouveau) is failing at ttm_device_init. That is failing because of a behavior change in ttm_global_init with respect to debugfs. debugfs is disabled on my system, which causes ttm_global_init to fail. The following patch fixes the issue by ignoring the debugfs failure, which is expected, rather than allowing it to cause ttm_global_init to fail. Dan Moulding (1): drm: ttm: Don't bail from ttm_global_init if debugfs_create_dir fails drivers/gpu/drm/ttm/ttm_device.c | 2 -- 1 file changed, 2 deletions(-) -- 2.31.1
