This also sounds much like bug 3731, which many people have reported. I don't know if it's driver-specific, but the problem can be traced down to xresprobe, which is not reporting the resolutions correctly.
Also, xresprobe is not installed by default on Feisty, so I wonder if people who upgrade from Edgy->Feisty might be losing xresprobe, and then when x reconfigures it misses the refresh rates? Or else perhaps xresprobe is unable to interpret the EDID data from these nvidia cards? -- [nvidia-glx] Resolutions lost on upgrade from Edgy to Feisty [nvidia-glx-legacy][nvidia-glx-new] https://bugs.launchpad.net/bugs/91292 You received this bug notification because you are a member of Ubuntu Bugs, which is the bug contact for Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs