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ohmysql

Member

Registered: 2015-03-13

Posts: 33

gnome 3.14 oh no! (gdm & gnome won't start)

I'm quite stumped about why I'm getting a "Gnome - oh no! Something has gone wrong" message. I try logging in but Gnome 3 doesn't work.

I am able to startx, but when I then try to do gnome-session I get:

Xlib: extension "GLX" missing on display ":0"
gnome-session-is-accelerated: No hardware 3D support
gnome-session-check-accelerated: Helper exited with code 256

gdm just hangs, as does lightdm.

I have nvidia-340xx installed.

I've been googling around without much luck.

I use gnome 3.14!

Help?

ohmysql

Member

Registered: 2015-03-13

Posts: 33

Re: gnome 3.14 oh no! (gdm & gnome won't start)

Following other tips I found this:

pacman -Qo /usr/lib/xorg/modules/dri/swrast_dri.so
usr/lib/xorg/modules/dri/swrast_dri.so is owned by mesa 10.5.1-2

I'm still trying to get the Nvidia proprietary drivers to run everything, so that may be a clue.

Should I uninstall mesa? I'm trying to have it loaded as a backup for when Nvidia fails, but maybe that's a bad idea.

Now trying for the second time: pacman -S nvidia-340xx-utils nvidia-340xx-libgl nvidia-340xx

Also, I deleted some symlinks (at least that's what I think they are) according to:

http://ubuntuforums.org/showthread.php?t=1722306

Last edited by ohmysql (2015-03-27 19:09:09)

gnumdk

Member

Registered: 2009-10-15

Posts: 175

Re: gnome 3.14 oh no! (gdm & gnome won't start)

https://bbs.archlinux.org/viewtopic.php … 3#p1514173

ohmysql

Member

Registered: 2015-03-13

Posts: 33

Re: gnome 3.14 oh no! (gdm & gnome won't start)

FYI For sure I'm not using a test environment and I can't think of any reason I would be running wayland. I believe wayland is installed on my system -- are you saying I should remove it?

When I run htop I certainly don't see anything mentioning wayland when I filter by gdm. And mutter isn't running. I do see a coredump today from /usr/bin/gdm, but no signs of it using wayland.

By the way, I saw on another thread that it might be worth investigating a possible interference from libvdpau with nvidia-settings. But I don't see any sign that libvdpau is running when I do systemctl -a | grep vd or systemctl -a | grep pau

Also, "glxinfo | grep rendering" and "glxinfo | grep NVIDIA" give the message: "(Error: unable to open display)"

Here's what I'm getting when I open gnome-shell --replace --debug

gnome-shell --replace
hand written notes: 

Glib critical g_environ setenv assertion 'value!=NULL' failed
Cannot open display
Unable to init server: Could not connect: connection refused

Helllp? Also, would it help to uninstall mesa or wayland?