> When I tried "sudo modprobe nvidia" I got an "exec format error" > message and the nvidia module refused to load. You need to build your driver for each kernel separately. That's why you can get [0] as a package. cheers! mar77i [0] https://www.archlinux.org/packages/testing/x86_64/nvidia-dkms/ Sent with ProtonMail Secure Email. ‐‐‐‐‐‐‐ Original Message ‐‐‐‐‐‐‐ On May 5, 2018 7:01 AM, Junayeed Ahnaf via arch-general <arch-general@xxxxxxxxxxxxx> wrote: > I did a rollback too , seems like there's no easy way to go back from nonfree to free drivers. > > On May 5 2018, at 12:00 am, Eric Blau eblau@xxxxxxxxx wrote: > > On Fri, May 4, 2018 at 1:34 PM Junayeed Ahnaf via arch-general < > > arch-general@xxxxxxxxxxxxx> wrote: > > So here's what happened, I was facing issue with proprietary nVidia driver > > (screen tearing) so I thought I want to switch to the free one, so I > > uninstalled nvidia with "pacman -Rs nvidia" , then I thought might as well > > try a different kernel and installed zen. Now when I boot into either > > kernel I am seeing "Starting display manager" then a black screen. I can > > login to tty2 , but no display comes up. > > I want to switch back to free driver, with preferably zen kernel. What > > should I do? Thanks in advance. > > I just hit a similar issue when trying to switch from nvidia to nouveau. I > > was trying to switch from i3/Xorg to sway/Wayland. The proprietary nvidia > > driver is unsupported with sway. I uninstalled the nvidia modules like you > > did, disabled the lightdm display manager, and booted into nouveau. It > > worked but was much too slow to be usable with my 4K display. I was getting > > major lag. It was like getting 1 HZ refresh rate moving my mouse pointer > > around. > > I switched back to i3/Xorg with the nvidia modules but when rebooting to > > > The nvidia module installed to the extramodules directory so I expected it > > to work with the 4.16.4 kernel I'm running even though it was built on > > 4.16.1, but apparently that is not the case. Uninstalling and reinstalling > > nvidia and nvidia-utils did not fix things. > > Eventually I gave up and did a "zfs rollback" to restore the previous > > system state and everything was fine after that. Sorry I don't have good > > solution for you, but I wanted to chime in that I also encountered the same > > problem and it was related to the nvidia modules not being loadable. > > Regards, > > Eric
