On 4/21/06, Mike Cohler <mike.cohler@xxxxxxxxx> wrote: > I have a freshly installed FC5 system on a machine that was running > FC4 until today. > It has an Athlon processor and an onboard Trident Cyberblade graphics > card, as well as a Radeon 7000 PCI card, and the monitor is plugged > into the Radeon card. > > It would not do a graphical install at all, so I did a text install - > and this appeared successful. > > However, once complete it refused to enter firstboot - and crashed as > soon as X tried to start. > I have been unable to get past that point ! I had severe problems > last year - see > https://bugzilla.redhat.com/bugzilla/show_bug.cgi?id=169637 > for the problems relating to fc4. Having had some thoughts overnight I think that the basic problem may be that during install the installer recognised the Trident on-board graphics card and selected this as the card to use instead of the PCI radeon card to which the monitor was plugged in. The monitor was nevertheless detected correctly by the probe. I therefore wonder if it is possible to select which graphics card the system uses by a kernel parameter when the installer starts (assuming I re-installed from scratch) ? For example is it possible to select pci=reverse or somesuch or does anyone know the details of the kernel parameters to be able to say what other options might work ? Cetainly noacpi, noapic and selecting resolution all make no difference. If the monitor is connected to the onboard Trident socket then the screen is not displaying anything once the system boots so I presume the BIOS detects the monitor - this is all very puzzling and I am not sure if it is something simple to cure or if I should unplug the PCI graphics card and stick with the old on-board one. Mike -- mike cohler
