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Hi!
I am running a 3-port (DVI, HDMI, VGA) ATi 6770 card which is flashed to a 5770 in order to run on Lion. Two displays are connected to the DVI and the HDMI port. All is working great up to the point where I put the machine to sleep. After waking up there is no signal coming out of the HDMI port. System Information still shows the monitor and there still are windows on that desktop but the display stays dead. What I tried already is setting the AtiPorts key to 3 in boot.plist.
Edit: Even after unplugging (gets detected, only one display attached) and replugging (gets detected again) the output on the port is just black
Any help/ideas/tips are greatly appreciated. If you need any files (dsdt etc) just say so. The machine is a Gigabyte g41mt-d3v mainboard, core2duo processor and a 1Gb ATi 6770(5770) graphics card.
Thanks!
7 replies to this topic
#2
Posted 27 July 2012 - 03:24 PM
jonisign
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InsanelyMac Protégé
I have the same problem... Except display port doesn't work either...
#4
Posted 30 July 2012 - 11:43 PM
jamdox
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Big fat bump on this one! I'm having a similar problem with my MSI R5770. I only have one monitor on displayoport and it stops working after waking from sleep, although plugging in the DVI cable enables it to work again.
Does anyone with a reference layout 5770 have this problem? If so, it could just be a 10.8 glitch.
Does anyone with a reference layout 5770 have this problem? If so, it could just be a 10.8 glitch.
#5
Posted 31 July 2012 - 04:29 AM
jonisign
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InsanelyMac Protégé
Same problem with an XFX 5850... maybe it's an issue with all 5700/5800 cards?
#6
Posted 01 August 2012 - 12:30 AM
jamdox
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Word over at tonymac is that this is an old issue that has been dealt with ###### and in greater depth ###### Let's see what happens?
#7
Posted 01 August 2012 - 02:58 PM
jonisign
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InsanelyMac Protégé
Looks like someone fixed it over there! Let's see if we can get a more detailed explanation for how to do it ourselves? Thanks again for the tipoff!
#8
Posted 28 October 2012 - 12:10 AM
who_s_there
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InsanelyMac Protégé
I had a similar issue with my new i7-3770 and ATI HD 5770. Sleep was OK but at wake up screen stays black.
I've finally found the solution : In order for OSX to control perfectly the graphics card (and not the internal HD4000), I needed to set PciRoot=1 on /Extra/org.chameleon.Boot.plist
May be that could help you guys
I've finally found the solution : In order for OSX to control perfectly the graphics card (and not the internal HD4000), I needed to set PciRoot=1 on /Extra/org.chameleon.Boot.plist
May be that could help you guys
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