laserboy

So I have done a clean install of Lion on my D520. Used MyHack method with extra from this site. Running EDP 2.1, I ended up with a functional system, but I still had no ethernet as was the case with snow leopard. I then removed the dsdt, reduced the /Extra/Extensions Kexts to a minimum (FakeSMC, etc.) Booting, the system with the default of 32 bit was not good. It came up with a dark screen - I believe it booted, but did not have any video display. However, booting in 64 bit was more successful - though I had no keyboard or trackpad. Using USB Mouse and Keyboard allowed me to mess around with the system. I also had an ethernet connection AND a wifi connection. So that was in some ways an improvement. There is a package on kexts.com for 32 bit 64 bit ps/2 keyboard and track http://www.kexts.com/downloads.php?do=file&id=1448. Installed these and away I went, trackpad, keyboard, sound installed fine - all in 64 bit. Sleep does not work, but that's not a biggy for me since I have specific uses for this machine that do not involve sleep. I dumped the DSDT (A05 bios), cleaned it up, patched it for GMA950. It seems to work ok on the system though I do not know how I would tell how well it is working. Updates on Lion have gone very well. Not an issue. Hope this helps someone. M.

So I have been doing some experimenting... 1) Installed another partition of OSX 10.6 no updates. 1A)Without running EDP - No LAN. 1B) Running EDP 1.8 - No LAN. 1C) Kernel flag maxmem=1024 - No LAN 1D) kernel flag max_valid_dma_addr=1024 - No LAN 1E) Downgraded bios to A05 - No LAN in either 10.6.0 or 10.6.7. The thing knows it has a connection, but WILL not get an IP. Even manually setting up an IP and having the router have a static route, it will not communicate. Works fine in Win 7 or Ubuntu. I feel like there is some obvious thing that I have not thought of and I am missing. This is getting me angry. M

Yeah I had looked at thAt stuff So it works for 10.6.7? I still think this is a Mac issue and not a driver issue. Maybe I'll try a second install.

Yeah, it works with Linux. Worked with windows until I deleted it.

Hi, I tried several things: 1) Removing the BCM4401 kext from extra/extensions, running edptool and update and reboot (turn off really). The reinstall BCM4401 kext and update and reboot. Result No change. 2) added the kernel flag as suggested Ddd max_valid_dma_addr=1024. That produced no change either. It senses the presence of a ethernet connect, but will not connect. M

Sorry for the delay. Holiday weekend. I did have the kernel flag max_valid_dma_addr=1024 I did not have the ddd. I will try in AM and report back. The d520 lives in my office. M

Well the n does sound great. I like it on my windows laptop. The D520 was sitting on my office desk collecting dust so now it is perhaps used a little more. Regarding the LAN, I am not so convinced that it is an issue with installing OSX as an issue with OSX. The web seems to abound by Mac users complaining of this issue with no real solution in sight. I am just hoping that the problem will one day cure itself. Ive tried booting in safe mode, booting with 1 cpu, playing with various forms of the BCM440x kext, Can someone tell me how to remove drivers and then have the computer rediscover the card?

The pause key does say it is increasing the brightness, but nothing happens! Guess that does not bother me. And honestly, for most things the wifi is fine. But when downloading a larger file - i'd rather have the ethernet.

Yeah, done that about half dozen times. No joy. It just self assigns the IP.

Its a good suggestion. I can only do that at home and when I set up a static route, it would say connected but would not connect. Part of me feels that it is lying to me.

Tried it, but it did not work. Same issue as before. Really frustrating. It is simply not able to get an IP address (I think).

I have a relatively plain D520 - 2G ram, 160G HD, Bios A08. Everything installed well, I updated to 10.6.7, I have wifi, I used the EDPTool 1.8 (great tool!) and the system seems to work really well. Except for the Ethernet. If I have no cable, it says so. If I plug in a cable, it knows there is a cable but it never will get an ip and self assigns the ip. I can do nothing with it. The lan card is a broadcom 4401. It shows up in the system profile. I have tried max_valid_dma_addr=1024 as a kernel flag. Nothing works. Any suggestions on how to fix this really annoying issue? Thanks, M