mackyreddy Posted March 13, 2012 Author Share Posted March 13, 2012 @ Jon Lachonis Just use the DSDT which works for u. @ RDGnome Why, whats the Problem ? The one which i made for u is more 3D specific, where as the one in kexts pack is for an Optimus laptop. Changes are done in the Video card section. Link to comment Share on other sites More sharing options...
RDGnome Posted March 13, 2012 Share Posted March 13, 2012 Well it doesn't work fully. USB ports are unreliable and panic error. Also, when I updated to 10.7.3 it completely died, which didn't happen when I had no DSDT.. Link to comment Share on other sites More sharing options...
bouklett Posted March 15, 2012 Share Posted March 15, 2012 Hello, First of all please excuse my English wich is not my native language. I'm trying to boot from my iAtkos USB key but each time I get a "Operation System Not Found" Error. I made this key by "restoring" iAtkos .dmg file on it and installing the latest Chameleon 2.1 bootloader via another iAtkos installation, and then replacing the files on Windows via MacDrive. Since my laptop doesn't find any OS, i guess there is a problem with my bootloader installation but i have no clue about the source of this problem. Can you help me please? Link to comment Share on other sites More sharing options...
RDGnome Posted March 15, 2012 Share Posted March 15, 2012 Hello, First of all please excuse my English wich is not my native language. I'm trying to boot from my iAtkos USB key but each time I get a "Operation System Not Found" Error. I made this key by "restoring" iAtkos .dmg file on it and installing the latest Chameleon 2.1 bootloader via another iAtkos installation, and then replacing the files on Windows via MacDrive. Since my laptop doesn't find any OS, i guess there is a problem with my bootloader installation but i have no clue about the source of this problem. Can you help me please? Did you install GUID Partition or MBR Partition Table? Link to comment Share on other sites More sharing options...
mackyreddy Posted March 16, 2012 Author Share Posted March 16, 2012 Does any one have A.12 bios app ? dell has removed the A.12 bios from support page. Sleep & wake works out of the box on A.12. Update: Dell released a new bios update X56. Link to comment Share on other sites More sharing options...
mackyreddy Posted March 17, 2012 Author Share Posted March 17, 2012 Updated first post with A.17 ( revision x56) DSDT. Test it and let me know Link to comment Share on other sites More sharing options...
Zpecter Posted March 19, 2012 Share Posted March 19, 2012 Hello, I tried to install using iAtkos L2 but every time I press F8 for selecting the loading options, the laptop hangs. :wallbash: What can I do? Link to comment Share on other sites More sharing options...
c_cube Posted March 20, 2012 Share Posted March 20, 2012 hello Mahesh, tried using your latest DSDT with the latest BIOS. On my side, sleep still not working. stays on blank screen after hitting any keys or the power button. tried also closing the lid but same result But no other issues encounter so far. @Zpecter - have you installed the iatkos already? or you are trying to access the installation setup? Have you followed Mahesh guide properly? Link to comment Share on other sites More sharing options...
mackyreddy Posted March 20, 2012 Author Share Posted March 20, 2012 @ C-cube I am really disappointed with dell, I will start comparing the code of A.12 and A.17, hope we find some scope. By the way Do u have the A.12 bios.exe app ? Dell removed it from support page. Link to comment Share on other sites More sharing options...
Zpecter Posted March 20, 2012 Share Posted March 20, 2012 @Zpecter - have you installed the iatkos already? or you are trying to access the installation setup? Have you followed Mahesh guide properly? No, I can't even select the boot options, when I press F8, it hangs. Link to comment Share on other sites More sharing options...
c_cube Posted March 20, 2012 Share Posted March 20, 2012 @ C-cube I am really disappointed with dell, I will start comparing the code of A.12 and A.17, hope we find some scope. By the way Do u have the A.12 bios.exe app ? Dell removed it from support page. yeah they removed it but A11 still there. question, does sleep works under A11 or only in A12? Sorry i don't have. got my laptop A14 OTB. but will try to look if i can salvage for A12 bios. @Zpecter - try not to press F8 and let it boot to the installation setup/guide Link to comment Share on other sites More sharing options...
Zpecter Posted March 21, 2012 Share Posted March 21, 2012 @Zpecter - try not to press F8 and let it boot to the installation setup/guide I tried that, but it doesn't boot neither. What can I do? Link to comment Share on other sites More sharing options...
rgbastro Posted March 23, 2012 Share Posted March 23, 2012 Guys, does anyone experience jumpy movements of the USB mouse when laptop is under load, say loading YouTube videos or installing anything ? Touchpad mouse control works fine without delays, not pointer jumping. UPDATE: I figured the culprit: my usb mouse was connected to high speed USB port along with HSDPA wireless modem on a neighbouring high speed port. I switched mouse to a 3rd port -- no more mouse lagging! Link to comment Share on other sites More sharing options...
Zpecter Posted March 24, 2012 Share Posted March 24, 2012 Hello, I tried to install using iAtkos L2 but every time I press F8 for selecting the loading options, the laptop hangs. :wallbash: What can I do? Any tip to solve this problem?? Link to comment Share on other sites More sharing options...
Jon Lachonis Posted March 24, 2012 Share Posted March 24, 2012 Try disconnecting all USB devices, sd cards, etc. Mine hung when I had a USB pen drive in. Although, it seems if you are booting from DVD iAtkos L2 you shouldn't need any boot options. In my install I just let the countdown expire and it booted fine. I also remember that it hung when I had my iPhone in... 1 Link to comment Share on other sites More sharing options...
meok Posted March 24, 2012 Share Posted March 24, 2012 Hi all! I'm new on this topic, but I'm a bit confused after all... First of all, I still haven't tried to install OSX, I got it on my Acer 5920G and I'm satisfied, so i'm thinking to put it also on L702x.... Well, just to check if I correctly understood.... I have a L702x with GT555M and NON 3D screen (i have 1600x900 display). So I have Optimus technology. And there is NO WAY to make GT555M work under OSX, if I want to install OSX, the ONLY thing I can do is to disable it by deleting Nvidia Geforce and Fermi kexts. Right? (or there is a way to start selectively OSX with GT555M as main and only display adapter and Intel HD Graphics hidden and sleeping?) Thanks... Link to comment Share on other sites More sharing options...
Zpecter Posted March 25, 2012 Share Posted March 25, 2012 Try disconnecting all USB devices, sd cards, etc. Mine hung when I had a USB pen drive in. Although, it seems if you are booting from DVD iAtkos L2 you shouldn't need any boot options. In my install I just let the countdown expire and it booted fine. I also remember that it hung when I had my iPhone in... Thanks a lot, that was the problem. I had plugged the mouse usb connector. Link to comment Share on other sites More sharing options...
rgbastro Posted March 26, 2012 Share Posted March 26, 2012 Can anyone change brightness inside Display portion of System Preferences? Link to comment Share on other sites More sharing options...
rfingez Posted March 27, 2012 Share Posted March 27, 2012 Hello, I tried to install using iAtkos L2 but every time I press F8 for selecting the loading options, the laptop hangs. :wallbash: What can I do? I had same issue then realised it was due to my wireless mouse receiver plugged into USB! So maybe you have something in ur USB port?? Ok, so please forgive my first post above, didn't realize it had been answered already! Just wanted to send thanks to Mahesh et al for this post and enabling me to get 10.7.2 running on my xps15. Although my DSDT and SSDT are most likely not right (used the 2670qm one) my 2820qm acheived a healthy 10087 in 32bit and 11034 in 64bit. I got sound, video, network all purring along. No card reader yet though. I'm still a newbie at this and certainly couldnt have done it without this post! Cheers! Richie Link to comment Share on other sites More sharing options...
mackyreddy Posted March 27, 2012 Author Share Posted March 27, 2012 @ rfingez No worries mate, have a good day. Link to comment Share on other sites More sharing options...
JohnnyD Posted March 27, 2012 Share Posted March 27, 2012 Any one have the A12 Bios flasher still? 1 Link to comment Share on other sites More sharing options...
mackyreddy Posted March 27, 2012 Author Share Posted March 27, 2012 Does Dell includes the Bios flasher on the Dell Utilities & Drivers DVD ? i will check my DVD. Link to comment Share on other sites More sharing options...
justinramell Posted March 27, 2012 Share Posted March 27, 2012 My first post here so hopefully it's a useful one! Dell still have all their previous BIOS revisions available on FTP. ftp://ftp.dell.com/bios/L702X_A12.exe I took a risk and tried flashing this on my 1 week old L702X (A16 stock) and sadly the GT555m stopped working completely. I was able to use the Intel card fully, and sleep worked perfectly in OSX. The newer L702x's must have a new revision of the NVIDIA card that needs the newer bios. I've re-flashed A17 and the GT555m now works again, albeit it no longer sleeps in OSX again. I don't remember exactly where I found the Winflash program, but the link was in another forum where people are modding the L702x bios to get higher NVIDIA clock speeds - there was a link to a version that allowed the downgrade without any fuss. 1 Link to comment Share on other sites More sharing options...
mackyreddy Posted March 27, 2012 Author Share Posted March 27, 2012 Thank you so much Justinramell, There is some thing mystical about A.12 as this is the only bios where sleep & wake works perfectly, but Dell removes it from their support page and treats A.11 as a better choice than A.12 Link to comment Share on other sites More sharing options...
mackyreddy Posted March 27, 2012 Author Share Posted March 27, 2012 Wake is back guys with A.12 bios and A.12 DSDT.aml in place ok guys as a backup i attached A.12 bios archive to the first post. just in case if Dell deletes the A.12 bios from its ftp server as well. Link to comment Share on other sites More sharing options...
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