Comment 58 for bug 392544

Indeed the noted patches went in post 2.6.31. As an interim solution you can try running one of the latest mainline kernel builds which should contain these patches. For ex http://kernel.ubuntu.com/~kernel-ppa/mainline/v2.6.32-rc4/

ogasawara@yoji:~/linux-2.6$ git show aa9eaa1f0962152d0bde821149d82fe7b70a6f92

commit aa9eaa1f0962152d0bde821149d82fe7b70a6f92

Author: Zhao Yakui <email address hidden>

Date: Thu Sep 3 09:33:46 2009 +0800

    drm/kms: Add the default mode table

ogasawara@yoji:~/linux-2.6$ git show 559ee21d261a54c42594ef9405d27e9008eedf44

commit 559ee21d261a54c42594ef9405d27e9008eedf44

Author: Zhao Yakui <email address hidden>

Date: Thu Sep 3 09:33:47 2009 +0800

    drm/kms: try to find the std mode in DMT table