Sure. 1920x1200 is what I got when testing using an DVI to HDMI, just to troubleshoot the connection. Connecting my display directly to the DVI port of the Raden 5770 I get full resolution, but no boot screen.
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Apple OEM 5770 Mac Pro 1,1 = no video during boot?
- Thread starter halfcamerageek
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Sure. 1920x1200 is what I got when testing using an DVI to HDMI, just to troubleshoot the connection. Connecting my display directly to the DVI port of the Raden 5770 I get full resolution, but no boot screen.
IIRC, OS X detects the resolution of the monitor at boot and thus provides a boot screen at native resolution. Perhaps it is having difficulty detecting this with your specific monitor.
I wonder if manually forcing the OS X boot screen to a specific resolution, say 1920x1200 at 60Hz, might give you a usable boot screen? If you want to try that, there is some information here:
http://www.insanelymac.com/forum/lofiversion/index.php/t5513.html
I wonder if manually forcing the OS X boot screen to a specific resolution, say 1920x1200 at 60Hz, might give you a usable boot screen? If you want to try that, there is some information here:
http://www.insanelymac.com/forum/lofiversion/index.php/t5513.html
It didn't work, unfortunately. I have also tried all variations for that command I could find Googling around - inside Kernel flags, specifying refresh rate and such.
I'm still waiting for a mini DisplayPort to DisplayPort adapter to arrive, so I can try the DisplayPort connection on my LCD. I'll update this thread with any findings.
Meanwhile, I've concluded that the card is fine and what I'm seeing is some kind of incompatibility with my display. Like you said, seems that the card's EFI is not able to recognize the proper native resolution of my display. Using VGA or HDMI adapters work fine.
I'm sure many Mac Pros are connected to 30" ultrasharps. Also, the 5770 is currently the default card, so I'm still surprised about this. The only thing I can think of is that it is a 3-way incompatibility (MP 1.1 + 5770 + 3008WFP).
I'm sorry I couldn't help. I hope it works out for you with the adapter.
I'm sorry I couldn't help. I hope it works out for you with the adapter.
You have all helped a lot. The important thing for me is that the card is not faulty and I don't have to return it. I was worried about having to wait one or more weeks to get a new card, while I have plenty of work to do.
I'd make that a 4 way incompatibility: MP 1,1 + 5770 + Dell 3008WFP connected using the DVI port.
Thanks for your suggestions.
I'd make that a 4 way incompatibility: MP 1,1 + 5770 + Dell 3008WFP connected using the DVI port.
Thanks for your suggestions.
Have you tried to use DisplayPort instead of DVI?
All you need is a miniDP to DP adapter or a miniDP/DP cable. Both go for about $10 on amazon.
Might be a suitable solution if you can't get DVI to work.
All you need is a miniDP to DP adapter or a miniDP/DP cable. Both go for about $10 on amazon.
Might be a suitable solution if you can't get DVI to work.
That's what I'll try soon. I've bought one of those adapters on eBay, but it'll take some weeks to arrive. I live in Brazil and I could not find any mini DisplayPort to DisplayPort adapter in my local market. I'll update this thread as soon as the it arrives.
I had this issue on a hackintosh build, the boot would be low resolution until it got to OSX-land, upon which it would go black and the only solution would be to sleep then wake or unplug and replug the monitor, so I don't think that this is his problem.
Zapping the gremlins
Just wanted to post an update about this problem. Something truly bizarre happened: without any intervention or change, the boot screen appeared and now is displayed correctly on every boot. I'm puzzled.
Yesterday I had a kernel panic and decided to leave my computer running memtest for a few hours and later Apple Hardware Test. Both programs didn't detect any problem. I used a mini DisplayPort to VGA adapter, connected to my main LCD, in order to be able to run those programs. Remember I only had video after the system completed the boot process. Memtest is run in the single user mode, command line, and the Apple Hardware Test by booting from the computer Mac OS install DVD.
On the next boot, much to my amazement, the computer displayed the boot screen on the DVI connection.
Something I've noticed, though, is that the boot process is much longer after installing the 5770 and the system hangs for about 30 seconds on a plain gray screen, before the Apple logo and spinning wheel appear. This issue used to happen on PCs with the same card and most motherboard manufacturers issued BIOS updates to fix it. Since this MacPro model is discontinued, I'm sure we won't see any update from Apple to fix this delay. In any case, I'm happy to have it working as is.
Just wanted to post an update about this problem. Something truly bizarre happened: without any intervention or change, the boot screen appeared and now is displayed correctly on every boot. I'm puzzled.
Yesterday I had a kernel panic and decided to leave my computer running memtest for a few hours and later Apple Hardware Test. Both programs didn't detect any problem. I used a mini DisplayPort to VGA adapter, connected to my main LCD, in order to be able to run those programs. Remember I only had video after the system completed the boot process. Memtest is run in the single user mode, command line, and the Apple Hardware Test by booting from the computer Mac OS install DVD.
On the next boot, much to my amazement, the computer displayed the boot screen on the DVI connection.
Something I've noticed, though, is that the boot process is much longer after installing the 5770 and the system hangs for about 30 seconds on a plain gray screen, before the Apple logo and spinning wheel appear. This issue used to happen on PCs with the same card and most motherboard manufacturers issued BIOS updates to fix it. Since this MacPro model is discontinued, I'm sure we won't see any update from Apple to fix this delay. In any case, I'm happy to have it working as is.
Coming to this party a decade later as I have been facing this same issue featuring my 1,1 mac pro, recently upgraded to 32gb ram & 5770 gpu. It has an oldschool apple cinema display with an adc adapter on the dvi port, and a minidisplay to vga generic monitor. I did these upgrades to bring my big ole cheesegrater up to El Cap. I piked the Cap installer & everything boots up as normal minus my boot screen. After reading the entirety of halfcamerageek's journey on multiple forums I think today's the day I go home and try to boot it without my minidisplay port adapters plugged in & see if that makes any difference. Will be posting updates here for the Pike community.
So I tried booting with just one monitor in at a time, dvi only, mdp (to vga) only, and no progress. A new thought began to cross my mind though. This gpu requires additional power to run, it might simply be not getting it at boot. I found this excerpt from the original product manual and am going to test it tonight:
If it doesn't work, I think it might be worth while to see if anyone has had luck using a spliced power connection from an unused drive to ensure it's running at startup.
I suppose before I jump to this solution I should make sure the gpu power is the issue, If I can at least witness the fan spinning at the boot chime, my hypothesis could be invalid.
If it doesn't work, I think it might be worth while to see if anyone has had luck using a spliced power connection from an unused drive to ensure it's running at startup.
I suppose before I jump to this solution I should make sure the gpu power is the issue, If I can at least witness the fan spinning at the boot chime, my hypothesis could be invalid.