It's really frustrating to buy a new notebook to use only with Ubuntu and not be able to use its wi-fi connection. If I sudo su and try again, I get the error bash: echo: write error: Invalid argument.
PROBLEMS WITH REALTEK RTL8723AE WIRELESS DRIVER
I also tried to echo 10ec 8723 > new_id on the sysfs (/sys/bus/pci/drivers/rtl8192de) location ( of the driver (actually, on each of them, one at a time), but I get a "Permission denied" error even with sudo.
PROBLEMS WITH REALTEK RTL8723AE WIRELESS DRIVERS
Since Realtek's Linux drivers for RTL8192CE/SE/DE actually mention the 8723 chipset in its sources, I tried compiling them and modprobing them, but they don't pick up the card ID (10ec:8723). The same errors occurred for both versions. I tried using both the 64-bit version (on my installed system, which uses the x86_64 version of Ubuntu) and the 32-bit version (on a live-USB x86 system with persistence enabled) of the Windows XP driver. Since this function doesn't seem to be called from anywhere in ndiswrapper's code, I'd assume the Windows driver is somehow calling it with bogus parameters. Upon further investigation, I have found that the function NdisMMapIOSpace (ndis.c:808), in 1.58rc1, gets called with physical address and length zero, which causes the failure. 1.58rc1 has dummy functions in their places, but it fails with a "ioremap failed" message. Both failed: version 1.57 does not provide an interface for the functions IoWMIOpenBlock and IoWMIQueryAllData. Installed ndiswrapper versions 1.57 (from repositories, with dkms) and 1.58rc1 (compiled from source from ndiswrapper's website). I have tried the following steps in order to try and make it work: Realtek usually makes drivers available for its card, but this specific one doesn't have a driver available on Realtek's website. I bought a new laptop with a RTL8723AE-BT wireless card, but it seems there is nothing that makes it work.
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