Ok, thanks for the info re dpkg-buildpackage. xf86DefModeSet.c is created by hw/xfree86/common/modeline2c.awk. If you run dpkg-buildpackage, you'll find it two places:
$ find -name xf86DefModeSet.c ./build-main/hw/xfree86/common/xf86DefModeSet.c ./build-udeb/hw/xfree86/common/xf86DefModeSet.c xf86DefModeSet.c is built using the files hw/xfree86/common/vesamodes and hw/xfree86/common/extramodes. extramodes is modified in the build process by debian/patches/001_fedora_extramodes.patch, so editing extramodes directly means the patch and therefore build fails. The packages do build if I add my missing modes to vesamodes and because all the modes are combined into the one xf86DefModeSet.c, I assume it'll work for testing purposes. dpkg-buildpackage builds a whole bunch of debs: xserver-common_1.18.4-1ubuntu6_all.deb xserver-xorg-core-udeb_1.18.4-1ubuntu6_amd64.udeb xserver-xephyr_1.18.4-1ubuntu6_amd64.deb xserver-xorg-dev_1.18.4-1ubuntu6_amd64.deb xserver-xorg-core_1.18.4-1ubuntu6_amd64.deb xserver-xorg-legacy_1.18.4-1ubuntu6_amd64.deb xserver-xorg-core-dbg_1.18.4-1ubuntu6_amd64.deb xserver-xorg-xmir_1.18.4-1ubuntu6_all.deb It looks like installing xserver-common and xserver-xorg-core should be sufficient to test my changes, is that correct or do I need the udeb or any of the other packages? -- You received this bug notification because you are a member of Ubuntu-X, which is subscribed to xorg-server in Ubuntu. https://bugs.launchpad.net/bugs/1606103 Title: modeset driver is missing some modes that the intel driver (and Mir) has To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1606103/+subscriptions _______________________________________________ Mailing list: https://launchpad.net/~ubuntu-x-swat Post to : ubuntu-x-swat@lists.launchpad.net Unsubscribe : https://launchpad.net/~ubuntu-x-swat More help : https://help.launchpad.net/ListHelp