Thanks for the quick response. I tried replacing the battery, and that seems to have cleared up some other issues I was having (prolonged blue screen on boot up), but it didn't solve the no video on reboot problem.
When I log in and share the screen, instead of the video card being properly identified in system profiler, it just lists it as a "VGA Compatible controller", but it lists the manufacturer correctly as ATI. When I cold boot it sees it as a ATI Radeon X1900. I had the same result with the original Nvidia card. It only list 3 resolutions on the displays pref pane: 1024x768, 1280x1024 and 1680x1050. I'm using an Apple 23" aluminum HD display, and none of those shows up on the display when I try selecting it. Maybe the slot has gone bad? Is that possible? I pressed the reset button on the logic board when I put the new battery in. Any help is appreciated. -Hal On Dec 24, 2009, at 12:20 PM, Clark Martin wrote: > Hal wrote: >> Hi all. >> I'm new to the group, but have been a member of some of the other LEM >> groups for a while. >> I've been having a problem with my G5 Quad that I hope I can get some >> insight on. >> >> It's running 10.5.8, though this problem has been consistent across OS >> versions. >> When I restart the G5, it reboots fine, but there is no video. If I >> use screen sharing to log in from another computer, I can see that it >> booted fine, but it won't send video to the DVI port on the video >> card. >> >> This behavior is exhibited with several DVI displays (I've tried 3), >> including an APple 23" Cinema display. I've also tried 2 video cards, >> the original PCIe 6600, as well as a flashed Radeon X1900. >> >> If I tell it to shut down, and then start it up, it works fine. > > When logged in remotely check System Preferences / Display and see what > video mode it's trying to display in (width x heighth and vert sync > speed). It's possible it is not one the monitor can display. Try > changing it to something you know the monitor can handle. > > Also check your PRAM battery, it may be dead or dying. > > > -- > Clark Martin > Redwood City, CA, USA > Macintosh / Internet Consulting > > "I'm a designated driver on the Information Super Highway" > > -- > You received this message because you are a member of G-Group, a group for > those using G3, G4, and G5 desktop Macs - with a particular focus on Power > Macs. > The list FAQ is at http://lowendmac.com/lists/g-list.shtml and our netiquette > guide is at http://www.lowendmac.com/lists/netiquette.shtml > To post to this group, send email to g3-5-list@googlegroups.com > For more options, visit this group at http://groups.google.com/group/g3-5-list -- You received this message because you are a member of G-Group, a group for those using G3, G4, and G5 desktop Macs - with a particular focus on Power Macs. The list FAQ is at http://lowendmac.com/lists/g-list.shtml and our netiquette guide is at http://www.lowendmac.com/lists/netiquette.shtml To post to this group, send email to g3-5-list@googlegroups.com For more options, visit this group at http://groups.google.com/group/g3-5-list
