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[GUIDE] Thinkpad T420 with (Mountain) Lion

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#21
Paddy O

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Well kinda...it goes to sleep but doesn't wake up...

That is the same behavior I had until I patched the AppleIntelCPUPowerManagement and removed NullCPU

#22
yeast

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Hi, can anybody help me with my problem. I was able to use this guide to install lion onto my t520 instead of t420. Everything is working fine except for one thing. Whenever I enter sleep mode and wake up from it, all my usb ports would stop working. It will not detect anything anymore unless I restart. Since I am using the airline 5088, this cause me to lose internet connection whenever I enter sleep mode. If anybody know how I can fix this, please let me know. Thank you

#23
crumpo

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Hi,
I finally found a VoodooHDA kext that doesn't crash on startup for me, great! Also I found a wifi dongle that works for me with the Aeronet drivers

That is the same behavior I had until I patched the AppleIntelCPUPowerManagement and removed NullCPU


I did that but it still doesn't work. After I patched AppleIntelCPUPowerManagement and deleted the NullCPU kext, I'd get CMOS errors on resume. I then applied madl0n's RTC patch which fixed that BUT it still does not wake up from sleep.

When I hit FN+F4 or select Sleep from the menu, the screen gets blank, I have some harddisk activity and the machine finally sleeps.

When I try to wake it up vis the fingerprint sensor or the power button, the machine comes to life a little, there is harddisk and fan activity, but the screen remains blank and the power light continues to fade in and out. The machine doesn't ract to keyboard or mouse actions. At that point, I have no choice but to force power off by holding the power button for a few secs.

Just for the record, I am using madl0n's dsdt and I have an i7-2620m if that makes any difference.

I'm gratefule for any help at this point...thanks!

#24
crumpo

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Here is a link to a thread that deals with the T420: (it's Chinese so you may want to use google translate if your Chinese is a little rusty :)

One noob question though - are the posted dsdts supposed to work with an i7 configuration, too (i7-2620m here) or do they need extra patches? - I have tried both madl0n's and the one from the first thread and my machine goes to sleep doesn't wake wake up.

Thanks!

#25
mysho

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i have lion 10.7.2 working on my t420i only with rBoot LE DVD. when i boot with rBoot everything works fine, i have 1600x900, trackpad, etc. but when i want to boot from hdd i always get stuck at blue screen when desktop should show up.
and AppleIntelCPUPM.kext is causing KP even after using speed stepper utility, so for now I'm not using -allowAppleCPUPM flag
can anyone help me?

and how can i see power consumption of my osx? i would like something similar to powertop in linux

edit: my integrated webcam stopped working after 10.7.2 update

#26
chinhhut

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I got the same problem with T420i, core i3 - 2310m. The system can go sleep but can't wake up :wacko: .

#27
149113

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Hi, can anybody help me with my problem. I was able to use this guide to install lion onto my t520 instead of t420. Everything is working fine except for one thing. Whenever I enter sleep mode and wake up from it, all my usb ports would stop working. It will not detect anything anymore unless I restart. Since I am using the airline 5088, this cause me to lose internet connection whenever I enter sleep mode. If anybody know how I can fix this, please let me know. Thank you


Which T520 model number and what graphics option does it have (NVIDIA NVS 4200M Graphics with Optimus or just the Intel 3100)?

#28
nerdkiller14

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I've got wireless working with a Dell 1397. This required patching the bios to remove the wireless card whitelist that lenovo has on all of their machines.
Although it was risky, it was certainly worth not having to carry an external USB wireless device with me wherever I go.



Could you post your bios and would/could you modify one for a Dell 1510?

#29
nerdkiller14

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I've got wireless working with a Dell 1397. This required patching the bios to remove the wireless card whitelist that lenovo has on all of their machines.
Although it was risky, it was certainly worth not having to carry an external USB wireless device with me wherever I go.



Could you post your bios and would/could you modify one for a Dell 1510?

I've got wireless working with a Dell 1397. This required patching the bios to remove the wireless card whitelist that lenovo has on all of their machines.
Although it was risky, it was certainly worth not having to carry an external USB wireless device with me wherever I go.



Could you post your bios and would/could you modify one for a Dell 1510?

#30
mysho

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ok so i can boot without rBoot DVD but i have to boot with arch=i386 (thats not good because i have 6GB RAM), and i don't have webcam working

could anybody try if his webcam is working in 10.7.2 and if it is working upload kexts that can do something with camera? my FaceTime shows message "There is no connected camera", in 10.7.1 it was working

#31
nerdkiller14

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some fixs in accordance with chipset


Could you please post the edits you did to the DSDT file ? Whenever I boot with your DSDT I get a KP something having to do with CPU? Any help is appreciated.

#32
mulletman13

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Any updates/progress?

I just purchased a Thinkpad with a 2520 i5 and integrated graphics; I'm mainly just looking to get QE/CI, sleep, and speedstep working. I'm a little hesitant to update/modify the BIOS, but it seems pretty straightforward?

Edit: Sorry, I'm mainly looking to see if the brightness of the screen can be controlled in System Preferences, or if any progress was made on getting the Brightness/Function buttons to work.

#33
mulletman13

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Finally got 10.7 to install, but when I reboot I get a KP regarding the AHCI or something talking about the USB. Was the original method using ##### or was it done with a retail install followed by using Lion Extra packages?

Any information would be appreciated.

#34
Manwe150

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Any updates/progress?

I just purchased a Thinkpad with a 2520 i5 and integrated graphics; I'm mainly just looking to get QE/CI, sleep, and speedstep working. I'm a little hesitant to update/modify the BIOS, but it seems pretty straightforward?

Edit: Sorry, I'm mainly looking to see if the brightness of the screen can be controlled in System Preferences, or if any progress was made on getting the Brightness/Function buttons to work.


All of those items work w/o needing to modify the BIOS. Brightness cannot be controlled via the standard Fn Home/End, but can be remapped to any other key combination from System Preferences->Keyboard->Keyboard Shortcuts->Display

#35
mulletman13

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Sounds good. I finally got the main OS installed to MBR with an appropriate (and loading!) boot loader.

Using the DSDT from the first post results in a kernel panic; likely as a result of the Optimus video switching.

Does anybody have one available for T420 that only have the integrated graphics option?

My last hurdle would be to get sleep working, and as it runs without a DSDT and with the IntelPM patch, it seems to almost enter complete sleep, but not quite. I imagine the USB power level change would be all that I'd need, I just don't know how to only use that part of the DSDT.


Wow, so I didn't realize that DSDT patching was quite easy with standard chipset patches. In any case, if anybody else has a T420 with only integrated graphics, I attached the DSDT I made that lets the computer sleep and enables brightness. Keep in mind that ApplePowermanagement will need to be patched as per the first post as well.

Attached Files



#36
nvrmore100

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I have been trying to get my T420 working for the last few days, and not a whole lot of luck. I had to add in the DSDT from the first post to my install USB or I had the issues that others were seeing where it was much too wide, and most of the screen was impossible to see. That got me installing, but am seeing a lot of issues when up and running. Mainly these are graphics glitches (lots of them), I have tried both DSDT's on this post, and no luck there. I also am having frequent lockups, generally when launching apps. Mouse works fine, but unable to click anything, type, etc. Generally I get a graphic glitch on screen at the same time. Any ideas?

EDIT: After 30s - 1min (or more sometimes) whatever was supposed to launch eventually does, and the graphic glitches resolve themselves. I can then type/click, etc.


I also tried my docking station for the first time today, and am getting a power management (ACPIPlatform kext) crash on boot when I use it. Don't have this issue when not docked. I have not messed with the sleep kexts or anything at this point, so will do that once I give those a go.

Power management working great, using kext from this post: http://www.insanelym...t&p=1797969

Also remove NullCPUPowerManagement.kext, and adding -allowAppleCPUPM to kernel boot flags as noted in original post.

Dock works fine, and outputs to both external screen (over DVI) and laptop screen. I cannot get it to display two different displays over DVI and VGA. It will provide signal to both but they mirror display, not separate. The OS only recognizes one display, not two when in this state. I don't think I'll have any luck here, based on previous posts about docking stations.

EDIT2 - SOLVED - After a hint from Manwe150 about possible BIOS related issues to my graphics bugs, I installed the whitelist free BIOS hack listed in this thread. That resolved my problems! screen tearing and artifact issues.

EDIT3 - Still graphic issues, but no screen tearing or anything like before. I think I am hitting this problem: http://www.insanelym...259705&st=0 Need to tinker with this a lot, but way over my head as to settings to try. I'll post back if I make any progress. If anyone is interested, I took a video of the graphics issue I'm facing:


EDIT4 - Video hangs are fixed! After hunting all over, I found some hints about new kexts in 10.7.3 that might be causing some pain. I removed all AppleIntelHD* out of /S/L/E and rebuilt the caches.

For those that might be encountering issues, check your console logs for messages similar to this:

****  Debug info for apparent hang in Main graphics engine  ****
<snip>
VRSYNC: (0x12044) = 0x2cc
BRSYNC: (0x22040) = 0x0
RVSYNC: (0x 2040) = 0x0
BVSYNC: (0x22044) = 0x0
RBSYNC: (0x 2044) = 0x0
VBSYNC: (0x12040) = 0x0
<snip>

Leaving a video of my issues out there for people to view also, in case you experience the same.

http://www.youtube.com/watch?v=EBOHXaVg3eI

Reinstalling for try to get a simply how-to to prevent a few of these issues. Here are couple things to modify after a fresh install is complete (even before it reboots):

# vi /Volumes/<osx install="" disk="">/System/Library/CoreServices/Setup\ Assistant.app/Contents/Info.plist
Delete:
<string>DeviceSection</string>
<string>KeyboardTypeSection</string>

# rm -rf /Volumes/<osx install="" disk="">/Volumes/OSX/System/Library/Extensions/AppleHDA.kext
</osx></osx></snip></snip>

#37
nvrmore100

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If anyone wants, here is a slightly newer modded BIOS link (1.37):

http://dl.dropbox.co...mo...miloml.exe

#38
bajabronco

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Any luck with HDMI out or VGA out yet?

#39
nvrmore100

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I'll have to test when I go into the office next week, I left the laptop there. If I remember, VGA out was working, but it wasn't displaying a separate output, just mirrored the laptop display. I don't have a way to test HDMI out at work, but I might bring it home to test.

#40
Playgame38

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I received this right after installing OSX Lion 10.7.3 and rebooting. I do not have an external keyboard ATM. Any recommendations?

Attached File  DSCI0145.JPG   141.4KB   41 downloads





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