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Dell Latitude E5520


sampoint

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Okay, I got Lion to install but it would only boot in safe mode with cpus=1... And once up it seems that the SL install was more supportive from the first boot... With SL my keyboard was supported from the start with lion it was not however when I plugged in the USB keyboard it seems that it forced the labtop keyboard into working order somehow because it is now fully functional...

 

Of course neither the Ethernet or the wifi are working as this is still a fresh install... But with my SL install I was able to use my iPhone to tether 3G... Unfortunatly lion doesn't recognize the tether as of now, I'm not sure if this has something to do with it being in safe mode or not

 

I downloaded the e5520 files aswell as the DSDT that you provided... I didn't install the kexts yet, I didn't apply the userDSDT yet and I haven't run multifail yet in fear of botching The install.. . Seeing as you've been the only one thats provided any sort of useful info I figured maybe you might be able to walk me through the multifail setup because last time I screwed it up.

 

Also I wanted to find out if applying the DSDT would be an issue since I can only boot with -x cpus=1.

 

Any help you may be able to provide will be greatly appreciated

 

Thanks again

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Okay, I got Lion to install but it would only boot in safe mode with cpus=1... And once up it seems that the SL install was more supportive from the first boot... With SL my keyboard was supported from the start with lion it was not however when I plugged in the USB keyboard it seems that it forced the labtop keyboard into working order somehow because it is now fully functional...

Of course neither the Ethernet or the wifi are working as this is still a fresh install... But with my SL install I was able to use my iPhone to tether 3G... Unfortunatly lion doesn't recognize the tether as of now, I'm not sure if this has something to do with it being in safe mode or not

I downloaded the e5520 files aswell as the DSDT that you provided... I didn't install the kexts yet, I didn't apply the userDSDT yet and I haven't run multifail yet in fear of botching The install.. . Seeing as you've been the only one thats provided any sort of useful info I figured maybe you might be able to walk me through the multifail setup because last time I screwed it up.

Also I wanted to find out if applying the DSDT would be an issue since I can only boot with -x cpus=1.

Any help you may be able to provide will be greatly appreciated

Thanks again



Currently i'm trying different modifications to my DSDT to see which patcher improve the system and which make it less stable.
The current config i'm testing is enabling brightness control is System Preferences (If I do, it keeps starting up at full brightness but it's attached to the "fn+F3" key to dim it (the "fn+up", "fn+down" still apply), but when i remove it from the DSDT it relies on the native brightness ("fn+up", "fn+down") control keys. I'm not still sure if anything else is affected by this change.

As to the configuration, I can just attach my current Extra folder to make it easier to get it running (I'm not sure if the above-provided kexts will work on any other OS other than 10.8 but it doesn't hurt to try (just need to make a way to quickly revert the changes just in case, to save time).


Just replace (don't forget to save your old files) the /extra folder with this one:  Extra.zip (updated 8 Dec 2012)

As to the ML installation process...
I've made a dedicated ML Install USB which I've obtained from somewhere (don't remember where exactly) but it's a process that uses a Windows-based program called SUSE to record a *.raw image of the ML installer directly to a USB drive. It's available via torrent (I'll IM the link to you). After the SUSE program created the ML Install partition on the USB drive I installed Chameleon with the Easy Boot option onto the USB (don't remember exactly why though).
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in my current working config I don't use any arguments other than the ones in my boot.plist file

I'll attach my current dsdt.aml ssdt.aml and boot.plist files

files.zip

plus i'm currently using Chameleon v3070 boot loader

if you're having boot problems try using the following arguments:

PCIrootUID=1 NPCI=0x3000

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got mine

 

Dell Latitude E5520

Core i7-2620M @2.7GHz

8 GB Ram DDR3

SSD

 

can't get it to boot, only in safe mode, tried the following switches:

 

cpus=1

npci=0x3000

pcirootuid=1

 

in safemode (-x) wlan with atheros card is working ;)

 

woul be great if someone can help.

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got mine

 

Dell Latitude E5520

Core i7-2620M @2.7GHz

8 GB Ram DDR3

SSD

 

can't get it to boot, only in safe mode, tried the following switches:

 

cpus=1

npci=0x3000

pcirootuid=1

 

in safemode (-x) wlan with atheros card is working ;)

 

woul be great if someone can help.

Did you try using the boot pack for E5520 and then install EDP?

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thank you. 

 

created a new install drive with the extra folder from your link, now after booting, when the install should show me the screen, the display is black.

 

I think, the olny diff. from the downloaded extra is the CPU, its not an i5, its a i7 2620m, could that be the problem ?

 

same found here: https://osxlatitude.com/index.php?/topic/1301-no-screen-after-installing-lion-on-a-latitude-e5520/

 

 

will try to post a full install doc, when its running

 

regards

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