Comment 6 for bug 1018907

The log shows:

[ply-renderer.c] ply_renderer_open_plugin:trying to open renderer plugin /lib/plymouth/renderers/drm.so
[...]
[./plugin.c] load_driver:Attempting to load driver 'omapdrm'
[...]
[ply-renderer.c] ply_renderer_open_plugin:opened renderer plugin /lib/plymouth/renderers/drm.so
[...]
[./plugin.c] ply_renderer_head_map:Creating buffer for 1920x1200 renderer head
[./ply-renderer-libkms-driver.c] create_buffer:Could not allocate GEM object for frame buffer: 22

So the kernel is exposing a DRM interface which is not usable by plymouth (or, according to what Oliver tells me on IRC, by anything else either). Either the kernel needs fixed, or we need to blacklist omapdrm so that we fall back to the framebuffer renderer instead, which is what was used in precise and earlier.