Your errors are most likely due to: [ 2.421428] nouveau [ PFB][0000:01:00.0] RAM size: 1975398418 MiB
I'm guessing you don't *actually* have 1.9PB of VRAM. At least one other person with a GM108 was seeing a similar issue. You're getting a bunch of other failed reads, looks like we're somehow not bringing the card up properly. The most immediate "fix" is to just disable nouveau entirely -- boot with nouveau.modeset=0. Cheers, -ilia On Sun, May 17, 2015 at 2:31 PM, <cao...@mail2tor.com> wrote: > Hello all, > > I've juste installed a new computer and I feel like I'm having trouble > with my NVIDIA GPU but it could be something else so I've enclosed > detailed output. As you can see in [lspci] output, my GPU is `NVIDIA > Corporation GM107M [GeForce GTX 850M] (rev a2)` whose specification can be > found in [specs]. > > The trouble I'd like to solve has the following symptoms: > --> Sometimes during booting process, it issues a lot of lines like > `nouveau E[ PFIFO][0000:01:00.0] SCHED_ERROR [ UNK06 ]` (see [dmesg] > output for full details). This seems to appear randomly: sometimes the > computer has to reboot automatically two or three times before being able > to boot correctly, sometimes it just needs once and doesn't have nay > troubles. > --> Some other times, windows appear to stop responding with no > reasons. I have to move the pointer off so the window display will > unfreeze and then I can put the pointer over again. I've found it seems to > be related to lines like this one `nouveau E[ PIBUS][0000:01:00.0] HUB0: > 0x000001 0x00000002 (0xbad00100)` in [dmesg]. It starts at timestamp > 28.115820. > --> Sometimes, even my window manager (Gnome 3) freezes and I have to > go to a tty to have a chance to unfreeze it. It doesn't always work > then sometimes I have to reboot my computer because it has become > absolutely frozen (no mouse, no keyboard, even the keyboard CAPS light > responds no more). > > I'm quite puzzled by this and I don't know whether the last symptom is a > bug or a feature (maybe multiple user simultaneous outputs). I've also > enclosed for your information my [Xorg.0.log] file and [lsmod] output. One > suggested me to share that with nouveau mailing list: maybe you don't have > any GeForce GTX 850M to test. I would agree to take time and perform test > for you if it can help to improve the way driver nouveau handles recent > GPU :) > > Just feel free to ask any further data you'd need about my configuration. > > Thank you in advance for you reply and have a good week! > > Caocoa > > --- references > [lspci] https://pastee.org/mtwkr > [specs] http://www.geforce.com/hardware/notebook-gpus/geforce-gtx-850m > [dmesg] https://pastee.org/zd4tt > [lsmod] https://pastee.org/t5z4e > [Xorg.0.log] https://pastee.org/r5tak > > > > _______________________________________________ > Nouveau mailing list > Nouveau@lists.freedesktop.org > http://lists.freedesktop.org/mailman/listinfo/nouveau _______________________________________________ Nouveau mailing list Nouveau@lists.freedesktop.org http://lists.freedesktop.org/mailman/listinfo/nouveau
