Public bug reported: The UBUNTU SAUCE patches that add module support to vesafb make the "mtrr" module parameter "bool". This only allows the values 0 and 1, thus no MTRR entries or "uncachable" MTRR entries. To enable write- combining (or write-back) MTRR entries, the "mtrr" module parameter should be "uint" (or "int").
I'll attach two patches, the first makes the described modification, the second one additionally makes write-combining MTRR entries the default. (Just as it already is for e.g. uvesafb.) Kind regards, Thomas ** Affects: linux (Ubuntu) Importance: Undecided Status: New -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/778043 Title: vesafb: mtrr module parameter is uint, not bool -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs