I have exactly the same problem with a normal 32 bit PC and the same E400 monitor mentioned above. Resolution is wrong, 640x480, 60 Hz. Some bugs marked as duplicates don't mention 64bits either.
Hardware. - Sony Multiscan E400 19" Trinitron CRT monitor - Pentium III coppermine 800MHz 32 bits - Matrox Graphics, Inc. MGA G400 AGP 32 MB Software: Ubuntu Dapper 6.06 LTS Desktop Live CD After boot, my resolution is 640x480, 60 Hz. Should be 1280x1024, 85 Hz (Monitor Menu: Help: Recommended resolution). Can be fixed on installed system by modifying xorg.conf. $ sudo ddcprobe # with linebreaks removed vbe: VESA 2.0 detected. oem: Matrox Graphics Inc. memory: 32768kb mode: 640x400x256 mode: 640x480x256 mode: 800x600x16 mode: 800x600x256 mode: 640x480x32k mode: 640x480x64k mode: 640x480x16m mode: 800x600x32k mode: 800x600x64k mode: 800x600x16m mode: 132x43 (text) edidfail $ sudo xresprobe nv id: res: freq: disptype: -- vbetool should subsume ddcprobe, use x86emu https://launchpad.net/bugs/8177 -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
