From Bugzilla Helper: User-Agent: Mozilla/5.0 (X11; U; Linux x86_64; en-US; rv:1.8) Gecko/20051118 Fedora/1.5-0.5.0.rc3 Firefox/1.5 Description of problem: A monitor by a major soncumer manufacturer is unknown at graphical install. Version-Release number of selected component (if applicable): How reproducible: Always Steps to Reproduce: 1. Boot FC5test1 install CD-ROM disk 1. 2. Choose graphical install. 3. Actual Results: Probing for monitor type: Unknown monitor Expected Results: Probing for monitor type: Samsung SyncMaster 730 Additional info: (II) VESA(0): Manufacturer: SAM Model: 192 Serial#: xxxxxxxxxx (II) VESA(0): Year: 2005 Week: 23 (II) VESA(0): EDID Version: 1.3 Samsung SyncMaster 730 flat panel 17" LCD monitor, upto 1280x1024. The same monitor is initially unknown by firstboot, but is in firstboot's detailed list if you search for it.
Unfortunately, we can't probe for monitors on x86_64 due to the generic method (ddc vbe probing via lrmi) not working once you've switched to long mode. There are other card specific methods, but X doesn't support a way to get access to those. The longer term answer is going to involve reworking the way that X handles configuration