[Bug 12877] New: No video or Ubuntu fails to boot on G4 Towers after successful installation

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Documentation | Installation Guide

           Summary: No video or Ubuntu fails to boot on G4 Towers after
                    successful installation
           Product: Documentation
           Version: unspecified
          Platform: powerpc
        OS/Version: other
            Status: NEW
          Severity: normal
          Priority: P2
         Component: Installation Guide
        AssignedTo: cjwatson at ubuntu.com
        ReportedBy: macangels at spamcop.net
         QAContact: ubuntu-doc at lists.ubuntu.com


There is a common issue where Ubuntu PowerPC fails to boot, or has no video display, on G4 Towers after a 
successful installation. This can happen when the same Mac can boot from the Live CD.

In my case, the problem was caused by a video card using a DVI to VGA adapter. It was resolved by removing the 
AGP video card [ 64 MB ATI 9000 - DVI / ADC ] and replacing it with the original one that ran natively VGA [ 16 
MB ATI Rage Pro - VGA only ].

Several posters to discussion lists suggest this was also caused by having more than 1 GB of RAM. I did remove 
additional RAM but I have not tested this. I consider that the DVI to VGA seemed a more likely culprit as it must 
have been messing up the video signal.

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