I don't know why this is the case, since I previously had it working with AHCI turned on. I had to turn off AHCI in my bios (set it to "Compatibility" mode, it's under Settings / SATA, or something like that).
which I think is the same thing that System Update will give you if you run it.ģ) At this point I had a Ricoh SD/MMC Controller in Device Manager / IDE ATA ATAPI Controllers, as well as a SDA Standard Compliant SD Host Controller under SD host adapters, and probably some other stuff.Ĥ) This is the confusing one. Back to where I started - everything working but the card reader.ġ) Removed all "Ricoh" packages from Control Panel / Uninstall Software.Ģ) Installed the latest from this page.
Then I went into Safe Mode, uninstalled all the devices it was trying to update, uninstalled the graphics driver & updated it by hand, rebooted. I did a System Restore to roll back the drivers. I'm pretty sure the graphics driver was what was BSOD'ing me. The issue turned out to be that Windows was attempting to re-install the graphics driver (and a bunch of other ones) on boot for some reason. After an hour of him trying to fix his mess, I hung up and started working on it myself.
This caused my computer to bluescreen on every bootup - even Safe Mode was inaccessible.
When I stopped him, he agreed to only update the Ricoh driver and the bios, plus resetting all the bios settings to defaults. The T520 has Lenovo Enhanced Experience 2.0 which includes TurboBoost+ which allows. The T520 can be configured with up to 8GB RAM and up to a 320GB hard drive or up to a 160GB SSD. The tech tried to update everything in System Update simultaneously. The ThinkPad T520 comes with the newest Intel Second Generation Core i processors, all the way up to the Intel Core i7-2820QM 2.30GHz processor with TurboBoost 2.0. Not sure exactly what the deal was, but I can tell you the things I did:Ġ) Called Lenovo support. # last line is unregulated/max speed.As of this writing, I've got it working (I think).
This inherently leads to overheating since the laptop is designed to run with unregulated fan speed under full load. Option "RegistryDwords" "EnableBrightnessControl=1"ĭefault temperature management allows only a limited fan speed. Add the following to your kernel parameters:Īnd create the file /usr/share/X11//nf The following may also be necessary to get backlight control working in X sessions with NVidia drivers.