No, the NV6800M needs 340xx driver, not 390xx as I prior posted. However, I have a GF-119 in my Lenovo T520, where nvidia-detect says, it needs 340xx. But, although I got 340xx compiled for the kernel, it did not start.
I then build 390xx, which worked like a charm. This happened on my notebook and also on an older graphics card in my desktop pc (forgot, which graphic chip it was). The 340xx I never got compiled in bookworm, even when downloaded the sources from bullseye and downgraded compiler and other things (except of kernel). The issue: During build, the nvidia-sources were looking for some files, which were no more existent in the kernel headers since that version. So the build failed. I asked the developers of the kernel headers, to fix this, but they claimed, that NVidia has to fix it, not the developers. One can now argument for both sides. 1. Either tell Nvidia, "hey fix your old drivers to our new headers, we removed some libs!" or 2. Tell the developers "Hey, please put back the libs, so that the kernel module of this old driver can be build again!" In real life no one wants to care of it! Nvidia not, because this costs money and the developers not, because this is Nvidia and proprietrary (what is not quite correct, because the kernel-module, which is the part, that can not be build, is open-source). Before you try: It is also not possible, to download the driver from the NVidia site directly, because you will run into the same issue again: It can not be build! Personally I can not understand, why this is not beeing fixed. It is not a problem with the kernel-module itself (I mean, no bug in the function), but it just can not be build. This is the least, I would expect! However, this is just my own very personal Opinion and no one shall be feel blamed here with! Hope, this makes a little bit clearer. Oh, and of course, modern cards supported by 470 and higher, of course this can be build! But they do not support older cards (legacy cards). Best Hans > Did the 470 driver work for the GeForce 8600M? I tried to install the > 390 driver, but it said "This driver will ignore your GPU" so I didn't > finish the installation.