I'm not surprised that there is no 1152x864@60 mode. I don't see where that mode would come from.
There is a default mode for 1152x864@85 in the Ubuntu supplement to extramodes, however. I can't see in the log where defaultmodes are being considered. They are seen clearly with my nv driver. That's one reason I wanted to see the config file. If it is pristine, however, then it won't be at fault.
@Mantas Kriaučiūnas
Is your configuration the default one automatically installed by Hardy, without change? Was the 1152x864@85 mode available when you tried Nvidia and Intel?
Your monitor could ask, in the EDID, for a mode with a vertical refresh of >=100 Hz, but doesn't. There are no VESA established modes, as of the last document I could find, for modes >=100Hz. Therefore if any were to be included automatically they would have to come from a modeline in the extramodes source file in xorg-server. If the radeon driver isn't trying to use these default modes it won't be able to offer 1152x864@85 (or anything around or above 100Hz) unless the monitor requests the modes inclusion or a modeline is added to the configuration. Of course it could be silently trying and rejecting this mode because of some detail I'm not aware of.
I'm not surprised that there is no 1152x864@60 mode. I don't see where that mode would come from.
There is a default mode for 1152x864@85 in the Ubuntu supplement to extramodes, however. I can't see in the log where defaultmodes are being considered. They are seen clearly with my nv driver. That's one reason I wanted to see the config file. If it is pristine, however, then it won't be at fault.
@Mantas Kriaučiūnas
Is your configuration the default one automatically installed by Hardy, without change? Was the 1152x864@85 mode available when you tried Nvidia and Intel?
Your monitor could ask, in the EDID, for a mode with a vertical refresh of >=100 Hz, but doesn't. There are no VESA established modes, as of the last document I could find, for modes >=100Hz. Therefore if any were to be included automatically they would have to come from a modeline in the extramodes source file in xorg-server. If the radeon driver isn't trying to use these default modes it won't be able to offer 1152x864@85 (or anything around or above 100Hz) unless the monitor requests the modes inclusion or a modeline is added to the configuration. Of course it could be silently trying and rejecting this mode because of some detail I'm not aware of.
I could easily be missing something here.