No GPU Power Managment

[PaulAdrien]

noob here, is this bug noticable when actually using the OS ? i use a gtx 460, im really not sure how to read the hw graph properly to know whats going on, but should the os seem slugish or slow, or its just using more juice ?

it basically uses more juices, although I don't know if it would have long term repercussion on your GPU's health... as for reading HW sensor, see the picture attached.

When we say the GPU won't throttle down, you will see that GPU Core will be up to 1GHZ and never goes down.



EDIT : Although the repercussions would more visible while using laptops (mac or hack), as your battery life would greatly diminished since your GPU is using a lot more power and your fans would be running non stop.

 

[bloodwarmer2002]

Here is some news ! I have a Gigabyte GA-Z77-DS3H with an i5 2500K (intel HD3000) and gtx 660 MSI (and iMac 12,2 SMBIOS) and have the same problem with frequency stuck when I use Quicklook, Preview, ... . So I made a fresh install of OS X 10.9 and found a "solution" :

- first, I selected "Intel Graphics Patch For Mixed Configurations" in Multibeast/Drivers/Graphics (because I use HD3000 on a 7-series motherboard) in order to enable the HD3000.
- In my org.chameleon.Boot.plist in /extras folder, I have set "IGPEnabler" to "Yes" so my HD3000 is well recognized
- Then, I reboot and in the BIOS, I set IGFX as primary boot
- I plug my HDMI cable in the HD3000 (not in the GTX 660) and boot

Both of my graphics cards are recognized and HD3000 is set as primary. Weird thing here : when I use quick look, my GTX 660 frequency still goes up to 1.03 Ghz and when I close Quicklook, the frequency goes down ... But Power management seems to work.

- Then I unplug the HDMI cable from HD3000 and plug it into the GTX660 and the power management is still working ! So great !

So I tried to see if this tip resists in rebooting ...
I plugged in the HD3000, rebooted and plugged in the GTX660 at the desktop. Surprise ... bad power management !

Then I shut down the computer, I plugged in the HD3000, booted and plugged in the GTX660 at the desktop. Good power management !

Conclusion : this tip (plug in the HD3000 first for booting and then in the gtx660 on the desktop) only works when I boot the computer, not if I reboot. It is not a permanent solution, but it actually works.

 

[callofmx]

the kepler seems to work great with HDXXXX series when you have more than one screen plugged in, such as the HDXXXX for the main screen and the second screen with GTX through HDMI. but once you plugged off and reboot with only screen

 

[bloodwarmer2002]

Actually, I still have a problem with the solution I gave since the new Intel Graphics drivers (included in 10.9.1) seam to be buggy with my config. When I open a Youtube video, the video window is pink and flashy, then the system hangs a few seconds later... This happen even if I plug the screen in the Nvidia graphics card before launching the video :/
I think I'll keep using ML for a while, but that doesn't bother me that much since ML has, for the moment, better graphics performances than Mavericks on my config.

 

[pano_78]

im experiencing some corruption on the login screen, sometimes it shows like a tv with no signal, but when if i type the password and access the desktop all becomes normal. this is plugged to the intel graphics.

 

[farcry84]

10.9.2 is being tested by developers and its said there aiming at graphics drivers this go around. can't wait to see how this goes.

 

[schwartzki]

@pano I used to have this issue back when I was running Intel graphics. Its was a simple fix for me, just simply hit the input switch on my monitor and it would cycle the inputs and redo the handshake for hdmi fixing the problem.

 

[m4rkus95]

im experiencing some corruption on the login screen, sometimes it shows like a tv with no signal, but when if i type the password and access the desktop all becomes normal. this is plugged to the intel graphics.

the same scenario here with my GTX 760. I think it's a feature to save power: After my system jumped to the login screen to retype the password the display goes to sleep mode. When I type my password in or hit any key, the display is waking up.

I'm following the problem with the power managment since I realized that my system needs more power with OS X. My Watt-O-Meter shows me around 60 Watt without any opened applications in Windows 7. After OS X are booted, my Watt-O-Meter shows me first around 60 Watt too, but after I open HWMonitor, Preview or other applications, it shows up to 100 Watt. It's not a nice feeling to see, that the system (or the GPU) takes more power as it should.

Hopefully somebody find a way to fix that. I can't wait that Apple releases 10.9.2 with a fix.

Regards
m4rkus95

 

[jamdox]

Well this is VERY interesting.

While the graphics power management doesn't seem to be better (I have a Dual-Link DVI-only monitor which HAS to be plugged in to the video card), enabling the HD4000 (via injection of the efi string and setting it to init first) has had an impact:

Previously, attempting to play XCOM would crash my system. Hard crash. Really bad.

Enabling the HD4000 AND plugging my second monitor into the motherboard video output has solved this problem!

I'd say this should be the recommended configuration for people running kepler cards. Integrated ON, at least. It seems like the system expects it to be there.

Will test more. For some reason booting -f made the system lose my audio drivers...? Looks like reinstalling restored. Weird.

 

[chevalier433]

This is not new to Mavericks. Unless your graphics card is native to OSX (i.e., 5770, 5870, 650M, 750M, etc.) there is no GPU PM.

Thats not correct what about the mac pro users?