3.11.0-12 does not have the bug, while 3.12.0-1 with SYSFB=n does. It looks like 3.12 is when simplefb was implemented (as you noted in a previous post) and when vesafb was integrated.
Based on Joseph Salisbury's comment #24 above noting that the older Ubuntu kernels had SAUCE patches to make vesafb work on platforms like this, is it safe to conclude that the version of vesafb in the Ubuntu-specific kernels 3.11.0-12 and earlier is not the same as the version in upstream?
3.11.0-12 does not have the bug, while 3.12.0-1 with SYSFB=n does. It looks like 3.12 is when simplefb was implemented (as you noted in a previous post) and when vesafb was integrated.
Based on Joseph Salisbury's comment #24 above noting that the older Ubuntu kernels had SAUCE patches to make vesafb work on platforms like this, is it safe to conclude that the version of vesafb in the Ubuntu-specific kernels 3.11.0-12 and earlier is not the same as the version in upstream?