Haravikk Posted November 23, 2014 Share Posted November 23, 2014 Okay, so my system is mostly working, but ever since the update to 10.10.1 I'm experiencing a rare kernel panic, or rather, one that I don't usually cause but that is entirely consistent. Quite simply, I tried a variety of ig-platform-id's in Clover before just sticking with the default value it gives for an HD4600 (0x0D220003) and it works fine for the most part. However, I have two screens, one connected via DisplayPort and one via HDMI, but if the HDMI screen isn't switched on during startup, then when I do turn it on then Yosemite kernel panics. If I have it switched on then Yosemite seems fine with this, and I can turn it on and off as normal. The only thing I've changed since the update was to remove a bunch of patches I wasn't using, including Realtek audio which I couldn't get to work, and HDMI audio which I'm not using (I opted for an Omni Surround 5.1 as it eliminated audio headaches); I figured it was better to prune any kext patches and SSDT files I wasn't actually using, which reduces me to just a few patches for Airport compatibility and a patch to enable TRIM support for all SSDs. Anyway, this issue didn't occur on 10.10.0, and while it's not critical (all I have to do is remember to turn both screens on) I'd really like to eliminate it entirely in case there may be other bugs that haven't surfaced. While it hasn't kernel panicked with the screen turned on at startup, I'm a bit paranoid that it might when I least expect it. Link to comment https://www.insanelymac.com/forum/topic/302856-hd4600-kernel-panic-when-switching-on-second-screen/ Share on other sites More sharing options...
Allan Posted November 23, 2014 Share Posted November 23, 2014 For we help you, we need more information. Post your hardware details, and a pic of the error. Link to comment https://www.insanelymac.com/forum/topic/302856-hd4600-kernel-panic-when-switching-on-second-screen/#findComment-2088594 Share on other sites More sharing options...
Haravikk Posted November 23, 2014 Author Share Posted November 23, 2014 Unfortunately I haven't been able to catch a specific error as although it dumps some text to the screen it then resets immediately. If it's dumping anything to disk then I haven't found it yet, though I do receive a crash-report dialogue once the system restarts, but it just lists a panic and all loaded kexts, it doesn't appear to giving anything more useful. I'm running a Gigabyte GA87TN thin Mini-ITX motherboard (supporting LVDS, DisplayPort and HDMI) with an i7-4790T (Haswell Refresh, 45W, 2.7ghz with 3.9ghz boost, quad-core, hyper-threading, HD4600). Link to comment https://www.insanelymac.com/forum/topic/302856-hd4600-kernel-panic-when-switching-on-second-screen/#findComment-2088598 Share on other sites More sharing options...
Allan Posted November 23, 2014 Share Posted November 23, 2014 Ok, if you use Clover, enter in initial GUI and go in "Clover Boot Options" -> "KernelAndKextPatches" and mark AppleRTC. Try start OS X now. And take a look here: http://www.insanelymac.com/forum/topic/302376-guide-patching-the-kernel-for-haswell-cpus-xcpm-early-reboot/ Link to comment https://www.insanelymac.com/forum/topic/302856-hd4600-kernel-panic-when-switching-on-second-screen/#findComment-2088603 Share on other sites More sharing options...
Haravikk Posted November 23, 2014 Author Share Posted November 23, 2014 I already have AppleRTC and KernelPM (in your link) enabled, I'm not sure if they might be enabled by default? Also, I've noticed something else weird, but I tried running Second Life in fullscreen mode, and after a single frame the whole screen turns pink; other fullscreen apps aren't affected, and if I run it in windows mode there's no problem at all. But this is also new since the 10.10.1 update. [edit] Actually I spoke too soon; with Second Life open in windowed mode, many of OS X's animations (including scrolling) become very jittery. Not a huge deal, but definitely not ideal either. [edit2] I'm adding my boot.log, forgot to do it in the first post. bootlog.log.txt Link to comment https://www.insanelymac.com/forum/topic/302856-hd4600-kernel-panic-when-switching-on-second-screen/#findComment-2088636 Share on other sites More sharing options...
Haravikk Posted November 24, 2014 Author Share Posted November 24, 2014 Okay, so I've solved all but the kernel panic/reset problem; I simply deleted all my graphics settings in Clover, re-enabled Inject Intel and things seem to be working smoothly, providing I remember to switch my second screen on in time. So long as I do that then everything runs perfectly. 1 Link to comment https://www.insanelymac.com/forum/topic/302856-hd4600-kernel-panic-when-switching-on-second-screen/#findComment-2088807 Share on other sites More sharing options...
Allan Posted November 24, 2014 Share Posted November 24, 2014 Enjoy your hack now! Link to comment https://www.insanelymac.com/forum/topic/302856-hd4600-kernel-panic-when-switching-on-second-screen/#findComment-2089032 Share on other sites More sharing options...
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