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Slow GUI in Yosemite


naquaada
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Hello,

 

I have a rather frustrating problem... Yosemite 10.10.2 works fine, but I always have a very slow GUI speed, Xbench results in only 66 points, on a Radeon HD6870 or Intel HD4000. In comparison: My ATI HD2600XT has 220 on my 10.5.8 AMD system (which works unmodified since 2008). It's no hardware problem: On 10.6.8 with the Radeon HD6870 I get nearly 600 GUI points.

 

I know, Xbench is old, but it should be enough for tests. First I tried Yosemite with Chimera and had these problems, then people told me I should try it with Clover. Now I tried Clover, but still no better results. It's the only problem I have, otherwise Yosemite is running fine.

 

I also tested another benchmark program with more graphics tests (don't know the name anymore), which resulted in 4 FPS on a very low resulution on the HD4000. In all cases the 3D accelerators doesn't seem to be enabled, with Chimera I got some messages that only a standard AMD driver was loaded, with Clover I get the message 'GPU Hardware VM is disabled (multispace: disabled, page table updates with DMA: disabled)'

 

My Hardware:

 

Gigabyte GA-Z77N, Core i7 3770S, 16 GB RAM, Intel HD4000

Gigabyte GA-Z77-DS3H, Core i7 3770K, 16 GB RAM, Radeon HD6870 1 GB, using HDMI and DVI

Gigabyte GA-H61N-D2V, Core i7 3770S, 16 GB RAM, HD4000

 

Issues: Graphic accelerators, Audio on Z77-DS3H and H61N-D2V

Radeon ID: 0x1002 0x6738 - HD4000 ID: 0x8086 0x0162 on all systems

 

Note: I disabled ALL UEFI settings on the boards, I'm using only Legacy. I have an extreme MBR-Multiboot with 9 Partitions, and I have to use EasyBCD to access all of them. EasyBCD doesn't work on UEFI/GPT.

 

I also have the USB keyboard problem within the Windows bootloaders (XP, EasyBCD), there's no reaction. I read something about changing the loading process to chainloading, or change Clover to boot6 or boot7 method. Don't know what this means, actually a '5' is displayed a short time before clover starts. I also often have the problem that the shutdown (from selecting Restart in the Apple menu to the first text output) takes extremely long, often more than a minute. This also was happening after using Clover.

 

Something else: What is with AppleKextExcludeList.kext? It seems to block a lot of kexts in it's .plist file. Are these settings overridden by kext-dev-mode=1 or should the excluded kexts be deleted in the .plist, especcially because there are many OSx86 kexts listed? Simply removing/renaming AppleKextExcludeList.kext won't work without errors.

 

I would really appreciate your help. The slow GUI/graphics accelerator problem is mainly the last reason why I'm not switching to my Core i7 systems. My AMD Opteron 185 couldn't even play H.264 Youtube-Videos without heavy CPU load, but OS X is much more useable because the GUI is faster.

 

Greets, naquaada.

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hello

 

clover can load kext from clover/kexts/10.10.. injecting in the cache when boot

 

avoid the kext-dev-mode=1

 

if u install no apple kext in s/l/e .. is sign are broken .. then become the errors .. if u modify any apple kext then u broke this sign .. for that u must use the flag..

 

http://clover-wiki.zetam.org/Configuration#Config.plist-structure

 

SystemParameters

 

good hack

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So, I removed kext-dev-mode, no changes, still no graphics accelerator enabled. I always have the message

 

25.03.15 15:09:43,000 kernel[0]: BUG in process suhelperd[215]: over-released legacy external boost assertions (1 total, 1 external, 0 legacy-external)
 

while booting, I think that was something with HDA audio. I had audio working a longer time ago, but I don't know which enabler anymore. I tested 1, 3, 5, 9, 887 and 888b.

 

BTW, I'm using the Clover Configuration tool. Memory information aren't working in 'About this Mac' and System Profiler, although the data are in the settings.

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Actually I'm only on the 6870 system, it's a card from Sapphire. I think it has 1x DVI-I, 1x DVI-D and 2x HDMI. I'm using original drivers from the Yosemite installation.

 

The HD4000 is another problem: it is shown as 0x01620009, which is not listed. The GA-Z77N-WiFi (Mini-ITX) has DVI and 2x HDMI, the GA-Z77-DS3H has VGA, DVI and HDMI.

 

A little speciality is the Gigabyte GA-H61N-D2V Mini-ITX-Board: It can use a Core i7, 16 GB RAM... but has just one DVI output, two seperate PS/2 connectors (the other boards need an Y-adapter cable) and it has connectors for a serial and parallel port. That's unusual, but inside it has just one PCI slot, no PCI-E! In a test was written that it may be designed as a small high-power board for industrial use. Makes sense, because a real parallel port is neccessary for specific data I/O, an USB parallel port won't work for all things. I'm using the parallel port for my EPROM burner. Ok, a board for industrial use doesn't need any funky addons, but it has the graphical 3D UEFI BIOS. The successor, the GA-H61N-USB3 has only a text-based BIOS and PCI-E x16. The audio chip of the H61N-D2V is the same like in the GA-Z77-DS3H, the network is the same as the GA-Z77N-WiFi. I already had Yosemite working on it.

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