nixos-rebuild switch/test issue with GNOME #21439
Comments
bjornfor
added
0.kind: bug
6.topic: GNOME
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I suspect restarting some of the services is a problem for gnome. Xfce once had this problem with dbus (the desktop just restarted). |
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This seems fixed now. |
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It happens again now on recent master. |
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Well, I don't see that error message in the journal. But "nixos-rebuild switch" on recent master kills the desktop. Some of the "switch'es" cause a restart of display-manager (so I can login immediately) while others have left me at the console and had to "sudo systemctl stop + start display-manager" to get it back. |
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Can confirm I'm experiencing this issue with gnome3/nixos 17.03. It happens with both options, test and switch. |
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I have been experiencing this issue for months now in 17.03; didn't know I could access the virtual terminals, I once accidentally hard-reset the machine due to the issue and corrupted my boot partition. Here are some logs from my latest crash. |
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I think this is related to #28053 (comment) |
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A workaround is to use |
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@teh are you still experiencing GDM changing every time you rebuild? |
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@eqyiel I use If you are still experiencing this it's probably a new problem. Can you find anything in the logs that would point to the reason for restarting? |
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@teh which master are you referring too? |
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I experience this on my machine too. Gnome desktop alwayes crashes and gets stuck on blank screen with flashing "_" after I ran nixos-rebuild switch within gnome environment. I'm currently on: |
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That's strange. The fix was picked to 17.09 as 24f0aec, a few weeks before your version. |
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The problem still persist. X11 breaks while systemd is going to be restarted. I can't even change tty after x11 breaks. I only can leave the blank screen by shutting down the machine. There was someone on #nixos irc encoutering this still too. |
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@teh there's a bunch of stuff in the logs that looks suspicious: I haven't gotten around to investigating all of this, but thank you for getting back to me - i just reached out because I remembered you had a similar problem. 😄 |
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This happens to me as well, as long as gdm is enabled every rebuild (I do not even have to change my config) kills my graphical environment. |
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Hm, I haven't experienced any trouble like this lately. (So if it wasn't for others here, I'd close the issue.) (UPDATE: I was wrong, "nixos-rebuild switch" restarts the desktop on NixOS 17.09 when using GNOME.) But just to rule out statefulness in $HOME, try adding a "test" user to your system and use that for a bit. I'm saying this because I just had trouble with screen locking not working in GNOME. When pressing Super+L I only got |
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Hi @bjornfor |
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Once I remove from nixos/modules/services/x11/display-managers/gdm.nix I can do a |
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I wrote:
But I was wrong. I am affected by this on NixOS 17.09. |
That "conflicts" line was added in b73e3b6 ("GNOME: 3.22 -> 3.24") at the end of august. One month later, just before NixOS 17.09 release, another related fix was added: 48465ae ("Revert "kbd service: use /dev/tty1 for systemd-vconsole-setup"). @jnugh: Will you submit a PR to remove the |
- fix restart of display-manager due to a conflict with getty@tty1 - fixes #21439
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The conflict between
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More specific: The conflict between getty@tt1 and gdm on boot happens only with NVIDIA binary drivers now. On intel cards, both getty@tty1 and gdm can run simultaneously and getty on tty1 will appear whenever you stop gdm (display-manager) |
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This should be reopened, as it is occurring again since has been merged #31003. |
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Cross-linking: roastiek@d761e66#commitcomment-25382880 Seems like that's the approach we should use. |
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Ha, the main difference is whether GDM runs on wayland or xserver. Only wayland supports sharing |
- Fixes nixos-rebuild switch/test issue with GNOME NixOS#21439 - The solution was given here: roastiek@d761e66#commitcomment-25382880
- Fixes nixos-rebuild switch/test issue with GNOME #21439 - The solution was given here: roastiek@d761e66#commitcomment-25382880
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Fixed on master as of c46d4da. |
- Fixes nixos-rebuild switch/test issue with GNOME NixOS#21439 - The solution was given here: roastiek@d761e66#commitcomment-25382880 (cherry picked from commit 37875c4)
GDM is now killed if tty1 is started after gdm is launched. This follows upstream's gdm service config. This might cause problems with nixos-rebuild switch though. See the reasoning and work that led to not following upstream on this: #21439 4a180da c46d4da
GDM is now killed if tty1 is started after gdm is launched. This follows upstream's gdm service config. This might cause problems with nixos-rebuild switch though. See the reasoning and work that led to not following upstream on this: #21439 4a180da c46d4da
GDM is now killed if tty1 is started after gdm is launched. This follows upstream's gdm service config. This might cause problems with nixos-rebuild switch though. See the reasoning and work that led to not following upstream on this: #21439 4a180da c46d4da
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Still happens on nixos-unstable (20.03pre196586.b943338e) |
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The fix hasn't landed in a channel yet (last nixos-unstable channel build failed on an urelated timeout https://hydra.nixos.org/job/nixos/trunk-combined/tested#tabs-constituents ) |
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Using Tha main reason is part of https://github.com/NixOS/nixpkgs/blob/master/nixos/modules/system/activation/switch-to-configuration.pl#L170-L268, which restart |
Issue description
A couple of times now I've been "locked out" of the GNOME desktop after having run "nixos-rebuild switch/test" on nixpkgs master branch. What happens is the graphical session disappears (black screen) and I can only access virtual terminals on Ctrl-Alt+F2..F6.
When this happens, I see this in the journal:
Steps to reproduce
Doing "nixos-rebuild switch/test" on a NixOS unstable system with GNOME, where the currently running configuration is old/different enough (compared to new) to affect the desktop session. (As far as I can tell.)
Technical details
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