Z77X-UP5 + Thunderbolt Display = Intermittent Failed Boots

[derperoo]

Hi All,

I am wondering if anyone (Einsteiniac ??) could please help me get this board and display working together properly. My trouble is, I am getting intermittent boot failures for reasons unknown, intermittent webcam functionality, intermittent speaker support, etc...

I have repeatedly "Shutdown" and just powered back up, and it seems to randomly decide to boot up (though the webcam and speakers don't work) or simply fail to boot, and I have to hold the power button to restart. I have been unable to track down the source of the failed boots. Does OS X record any information on failed boots? I was unable to find a log anywhere.

Any help is greatly appreciated!

 

[rfhall]

Location of Logs

About the only thing I can help with is the location of the logs. You must use terminal to access the logs by going to /var/log/system.log, finder will not get there. You can use any text editor to view the log.

 

[derperoo]

Thanks, I know about viewing logs in "Console" so I have seen system.log. Based on what I have seen though, it does not look like failed boots leave any entries. That's unfortunate. I did take some screen shots of the failed boots though, and here is what I am getting...

Any help is greatly appreciated! I don't understand why it works sometimes, and then fails randomly at others!

 

[SockChampion]

I am getting the exact same symptoms and stack trace. What Multibeast configs are you using?

 

[derperoo]

Initially I used the one with GraphicsEnabler=yes, but I have since edited my chameleon boot file several times. The most recent two that I tried are these...



<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
<plist version="1.0">
<dict>
<key>Legacy Logo</key>
<string>Yes</string>
<key>Timeout</key>
<string>2</string>
<key>device-properties</key>
<string>7f0000000100000001000000730000000200000002010c00d041030a000000000101060000027fff04002c0000004100410050004c002c00690067002d0070006c006100740066006f0072006d002d006900640000000800000005006201140000006800640061002d0067006600780000000d0000006f6e626f6172642d31</string>
<key>Graphics Mode</key>
<string>2560x1440x32</string>
</dict>
</plist>


And the same thing with this stuff included (which came with the file initially).
<key>EthernetBuiltIn</key>
<string>Yes</string>
<key>Kernel</key>
<string>mach_kernel</string>
<key>Kernel Flags</key>
<string>npci=0x3000 darkwake=0</string>
<key>Legacy Logo</key>
<string>Yes</string>

I've also tested GraphicsEnabler=yes several times, but no success. I don't understand why this error is so random! I just booted up onto the thunderbolt display this morning and everything was perfect. Shutdown and power on again, and I get the same kernel panic on boot. Help!!

 

[derperoo]

I just found out the following... When I boot onto a normal monitor through DVI, I never get Kernel panics, and the only difference in the loaded kexts of the Thunderbolt display and this display are the following...

IOEthernetAVBController, AppleBCM5701Ethernet, smbfs, AppleUSBAudio, AppleUSBDisplays...

So I would assume it is one of these kexts causing the problem? I may try to just get rid of them one at a time and see if that does it...

 

[SockChampion]

Looks very similar to mine:


<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
<plist version="1.0">
<dict>
<key>EthernetBuiltIn</key>
<string>Yes</string>
<key>GraphicsEnabler</key>
<string>Yes</string>
<key>Graphics Mode</key>
<string>2560x1440x32</string>
<key>Kernel</key>
<string>mach_kernel</string>
<key>Kernel Flags</key>
<string>npci=0x3000 darkwake=0</string>
<key>Legacy Logo</key>
<string>Yes</string>
<key>Timeout</key>
<string>2</string>
<key>device-properties</key>
<string>7f0000000100000001000000730000000200000002010c00d041030a000000000101060000027fff04002c0000004100410050004c002c00690067002d0070006c006100740066006f0072006d002d006900640000000800000005006201140000006800640061002d0067006600780000000d0000006f6e626f6172642d31</string>
</dict>
</plist>

 

[SockChampion]

I just found out the following... When I boot onto a normal monitor through DVI, I never get Kernel panics, and the only difference in the loaded kexts of the Thunderbolt display and this display are the following...

IOEthernetAVBController, AppleBCM5701Ethernet, smbfs, AppleUSBAudio, AppleUSBDisplays...

So I would assume it is one of these kexts causing the problem? I may try to just get rid of them one at a time and see if that does it...

I'd love to hear your findings on this. The only monitor I own is the thunderbolt display.

Edit: What BIOS version are you running on your board? I have version 3 but I'm considering flashing version 4.

 

[derperoo]

I already flashed to version 4. Makes no difference. Actually, I ran into a bug related to flashing. The board would freeze during boot on A2 which is something to do with IDE configuration. Clearing the CMOS seemed to fix that though.

 

[derperoo]

Also, are your boot failures also intermittent? Sometimes it boots for me and everything works including camera and audio, other times it boots and camera and audio don't work, and other times I get that kernel panic! It seems random, which is really frustrating.