Nixpkgs: Alacritty won't start - found no glX extensions

[karolchmist]

Describe the bug

Since last update on nixos-unstable, I can't launch Alacritty. I get this error:

Alacritty encountered an unrecoverable error:
         Error creating GL context; Received multiple errors. Errors: `[OsError("Could not create EGL display object"), OsError("`glXQueryExtensionsString` found no glX extensions")]`

cc @filalex77 @Mic92

To Reproduce
Steps to reproduce the behavior:

1. run alacritty

Metadata

• system: "x86_64-linux"
• host os: Linux 5.5.4, NixOS, 20.09.git.e2b4abe3c8f (Nightingale)
• multi-user?: yes
• sandbox: yes
• version: nix-env (Nix) 2.3.3
• channels(karol): ""
• channels(root): ""
• nixpkgs: /etc/nixos/nixpkgs

[Mic92]

It might be the case that it does not find your opengl driver.
The same version works on my system (TM).

$ alacritty  --version
alacritty 0.4.1

First of all verify that alacritty finds your opengl driver.

╭─[~]
╰─ % strace -f -o /tmp/alacritty alacritty

╭─[~]
╰─ % grep opengl /tmp/alacritty
12661 openat(AT_FDCWD, "/run/opengl-driver/share/glvnd/egl_vendor.d", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 7
12661 openat(AT_FDCWD, "/run/opengl-driver/share/glvnd/egl_vendor.d/50_mesa.json", O_RDONLY) = 7
12661 openat(AT_FDCWD, "/run/opengl-driver/lib/tls/haswell/x86_64/libGLX_mesa.so.0", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
12661 stat("/run/opengl-driver/lib/tls/haswell/x86_64", 0x7ffdff5fd160) = -1 ENOENT (No such file or directory)
12661 openat(AT_FDCWD, "/run/opengl-driver/lib/tls/haswell/libGLX_mesa.so.0", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
12661 stat("/run/opengl-driver/lib/tls/haswell", 0x7ffdff5fd160) = -1 ENOENT (No such file or directory)
12661 openat(AT_FDCWD, "/run/opengl-driver/lib/tls/x86_64/libGLX_mesa.so.0", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
12661 stat("/run/opengl-driver/lib/tls/x86_64", 0x7ffdff5fd160) = -1 ENOENT (No such file or directory)
12661 openat(AT_FDCWD, "/run/opengl-driver/lib/tls/libGLX_mesa.so.0", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
12661 stat("/run/opengl-driver/lib/tls", 0x7ffdff5fd160) = -1 ENOENT (No such file or directory)
12661 openat(AT_FDCWD, "/run/opengl-driver/lib/haswell/x86_64/libGLX_mesa.so.0", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
12661 stat("/run/opengl-driver/lib/haswell/x86_64", 0x7ffdff5fd160) = -1 ENOENT (No such file or directory)
12661 openat(AT_FDCWD, "/run/opengl-driver/lib/haswell/libGLX_mesa.so.0", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
12661 stat("/run/opengl-driver/lib/haswell", 0x7ffdff5fd160) = -1 ENOENT (No such file or directory)
12661 openat(AT_FDCWD, "/run/opengl-driver/lib/x86_64/libGLX_mesa.so.0", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
12661 stat("/run/opengl-driver/lib/x86_64", 0x7ffdff5fd160) = -1 ENOENT (No such file or directory)
12661 openat(AT_FDCWD, "/run/opengl-driver/lib/libGLX_mesa.so.0", O_RDONLY|O_CLOEXEC) = 7
12661 openat(AT_FDCWD, "/run/opengl-driver/lib/dri/tls/i965_dri.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
12661 openat(AT_FDCWD, "/run/opengl-driver/lib/dri/i965_dri.so", O_RDONLY|O_CLOEXEC) = 8

[karolchmist]

My result, but I'm not sure how to interpret it...

19732 openat(AT_FDCWD, "/run/opengl-driver/share/glvnd/egl_vendor.d", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 7
19732 openat(AT_FDCWD, "/run/opengl-driver/share/glvnd/egl_vendor.d/50_mesa.json", O_RDONLY) = 7
19732 openat(AT_FDCWD, "/run/opengl-driver/lib/tls/haswell/x86_64/libGLX_mesa.so.0", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
19732 stat("/run/opengl-driver/lib/tls/haswell/x86_64", 0x7ffd83e90630) = -1 ENOENT (No such file or directory)
19732 openat(AT_FDCWD, "/run/opengl-driver/lib/tls/haswell/libGLX_mesa.so.0", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
19732 stat("/run/opengl-driver/lib/tls/haswell", 0x7ffd83e90630) = -1 ENOENT (No such file or directory)
19732 openat(AT_FDCWD, "/run/opengl-driver/lib/tls/x86_64/libGLX_mesa.so.0", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
19732 stat("/run/opengl-driver/lib/tls/x86_64", 0x7ffd83e90630) = -1 ENOENT (No such file or directory)
19732 openat(AT_FDCWD, "/run/opengl-driver/lib/tls/libGLX_mesa.so.0", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
19732 stat("/run/opengl-driver/lib/tls", 0x7ffd83e90630) = -1 ENOENT (No such file or directory)
19732 openat(AT_FDCWD, "/run/opengl-driver/lib/haswell/x86_64/libGLX_mesa.so.0", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
19732 stat("/run/opengl-driver/lib/haswell/x86_64", 0x7ffd83e90630) = -1 ENOENT (No such file or directory)
19732 openat(AT_FDCWD, "/run/opengl-driver/lib/haswell/libGLX_mesa.so.0", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
19732 stat("/run/opengl-driver/lib/haswell", 0x7ffd83e90630) = -1 ENOENT (No such file or directory)
19732 openat(AT_FDCWD, "/run/opengl-driver/lib/x86_64/libGLX_mesa.so.0", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
19732 stat("/run/opengl-driver/lib/x86_64", 0x7ffd83e90630) = -1 ENOENT (No such file or directory)
19732 openat(AT_FDCWD, "/run/opengl-driver/lib/libGLX_mesa.so.0", O_RDONLY|O_CLOEXEC) = 7
19732 openat(AT_FDCWD, "/run/opengl-driver/lib/libGLX_indirect.so.0", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
19732 openat(AT_FDCWD, "/run/opengl-driver/lib/libGLX_mesa.so.0", O_RDONLY|O_CLOEXEC) = 7
19732 openat(AT_FDCWD, "/run/opengl-driver/lib/libGLX_indirect.so.0", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)

[karolchmist]

Oh, and I have a previous version of alacritty:

alacritty  --version
alacritty 0.4.0

[Mic92]

It should load at least one graphics driver from /run/opengl-driver/lib/dri (i915_dri.so in my case). It does not do so on your machine. I am not an expert on graphic cards but somebody else might able to help you if you also share your details on your graphic card (Nvidia, Intel integrated graphic card etc).

[karolchmist]

Ok, thanks @Mic92 ! I have Intel HD Graphics 530, but not sure which driver corresponds to it... Will rollback to the previous generation of Nixos and check.

BTW, can't run those commands either:

➜  ~ glxinfo                                                                                                                                                                   ~
name of display: :0.0
Error: couldn't find RGB GLX visual or fbconfig

➜  ~ glxgears                                                                                                                                                                  ~
Error: couldn't get an RGB, Double-buffered visual

[Mic92]

Do you have this set? https://github.com/Mic92/dotfiles/blob/master/nixos/modules/intel-graphics.nix#L5 We also have https://github.com/NixOS/nixos-hardware/ which might help getting opengl to work for some devices.

[karolchmist]

My hardware-configuration.nix:

  boot.initrd.availableKernelModules = [ "xhci_pci" "ahci" "sd_mod" "rtsx_pci_sdmmc" ];
  boot.kernelModules = [ "kvm-intel" ];
  boot.extraModulePackages = [ ];
  boot.blacklistedKernelModules = ["mei_wdt"];

I rollbacked to previous working NixOS generation and I have this:

➜  ~ glxinfo | grep -i vendor                                                                                                              ~
server glx vendor string: SGI
client glx vendor string: Mesa Project and SGI
    Vendor: Intel Open Source Technology Center (0x8086)
OpenGL vendor string: Intel Open Source Technology Center

strace for alacritty (working now):

2610  openat(AT_FDCWD, "/run/opengl-driver/share/glvnd/egl_vendor.d", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 8
2610  openat(AT_FDCWD, "/run/opengl-driver/share/glvnd/egl_vendor.d/50_mesa.json", O_RDONLY) = 8
2610  openat(AT_FDCWD, "/run/opengl-driver/lib/tls/haswell/x86_64/libGLX_mesa.so.0", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
2610  stat("/run/opengl-driver/lib/tls/haswell/x86_64", 0x7ffd6b7bea10) = -1 ENOENT (No such file or directory)
2610  openat(AT_FDCWD, "/run/opengl-driver/lib/tls/haswell/libGLX_mesa.so.0", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
2610  stat("/run/opengl-driver/lib/tls/haswell", 0x7ffd6b7bea10) = -1 ENOENT (No such file or directory)
2610  openat(AT_FDCWD, "/run/opengl-driver/lib/tls/x86_64/libGLX_mesa.so.0", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
2610  stat("/run/opengl-driver/lib/tls/x86_64", 0x7ffd6b7bea10) = -1 ENOENT (No such file or directory)
2610  openat(AT_FDCWD, "/run/opengl-driver/lib/tls/libGLX_mesa.so.0", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
2610  stat("/run/opengl-driver/lib/tls", 0x7ffd6b7bea10) = -1 ENOENT (No such file or directory)
2610  openat(AT_FDCWD, "/run/opengl-driver/lib/haswell/x86_64/libGLX_mesa.so.0", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
2610  stat("/run/opengl-driver/lib/haswell/x86_64", 0x7ffd6b7bea10) = -1 ENOENT (No such file or directory)
2610  openat(AT_FDCWD, "/run/opengl-driver/lib/haswell/libGLX_mesa.so.0", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
2610  stat("/run/opengl-driver/lib/haswell", 0x7ffd6b7bea10) = -1 ENOENT (No such file or directory)
2610  openat(AT_FDCWD, "/run/opengl-driver/lib/x86_64/libGLX_mesa.so.0", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
2610  stat("/run/opengl-driver/lib/x86_64", 0x7ffd6b7bea10) = -1 ENOENT (No such file or directory)
2610  openat(AT_FDCWD, "/run/opengl-driver/lib/libGLX_mesa.so.0", O_RDONLY|O_CLOEXEC) = 8
2610  openat(AT_FDCWD, "/run/opengl-driver/lib/dri/tls/i965_dri.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
2610  openat(AT_FDCWD, "/run/opengl-driver/lib/dri/i965_dri.so", O_RDONLY|O_CLOEXEC) = 9
2617  write(1, " alacritty_opengl.log\t\t\t drivers"..., 50 <unfinished ...>
2618  read(13, " alacritty_opengl.log\t\t\t drivers"..., 65536) = 90

Seems like i965_dri.so is being used. I have this in /run/opengl-driver/lib/dri/

-r-xr-xr-x 6 root root 13968872 Jan  1  1970 i915_dri.so*
-r-xr-xr-x 6 root root 13968872 Jan  1  1970 i965_dri.so*
-r-xr-xr-x 9 root root 17878056 Jan  1  1970 kms_swrast_dri.so*
-r-xr-xr-x 9 root root 17878056 Jan  1  1970 nouveau_dri.so*
-r-xr-xr-x 4 root root 10185608 Jan  1  1970 nouveau_drv_video.so*
-r-xr-xr-x 6 root root 13968872 Jan  1  1970 nouveau_vieux_dri.so*
-r-xr-xr-x 6 root root 13968872 Jan  1  1970 r200_dri.so*
-r-xr-xr-x 9 root root 17878056 Jan  1  1970 r300_dri.so*
-r-xr-xr-x 9 root root 17878056 Jan  1  1970 r600_dri.so*
-r-xr-xr-x 4 root root 10185608 Jan  1  1970 r600_drv_video.so*
-r-xr-xr-x 6 root root 13968872 Jan  1  1970 radeon_dri.so*
-r-xr-xr-x 9 root root 17878056 Jan  1  1970 radeonsi_dri.so*
-r-xr-xr-x 4 root root 10185608 Jan  1  1970 radeonsi_drv_video.so*
-r-xr-xr-x 9 root root 17878056 Jan  1  1970 swrast_dri.so*
-r-xr-xr-x 9 root root 17878056 Jan  1  1970 virtio_gpu_dri.so*
-r-xr-xr-x 9 root root 17878056 Jan  1  1970 vmwgfx_dri.so*

So I'll add i965 to kernelModules and see if it works.

[karolchmist]

I tried with kernelModule i965, and pkgs.vaapiIntel to opengl, still the same. I'll try more stuff this weekend, thanks @Mic92 for your help!

[jpas]

I'm getting the same error but I've got an AMD RS880.

But on my current generation (nixpkgs e2b4abe3c8f) it tries all of these:

openat(AT_FDCWD, "/run/opengl-driver/share/glvnd/egl_vendor.d", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 7
openat(AT_FDCWD, "/run/opengl-driver/share/glvnd/egl_vendor.d/50_mesa.json", O_RDONLY) = 7
openat(AT_FDCWD, "/run/opengl-driver/lib/tls/x86_64/x86_64/libGLX_mesa.so.0", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat("/run/opengl-driver/lib/tls/x86_64/x86_64", 0x7fff4815d530) = -1 ENOENT (No such file or directory)
openat(AT_FDCWD, "/run/opengl-driver/lib/tls/x86_64/libGLX_mesa.so.0", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat("/run/opengl-driver/lib/tls/x86_64", 0x7fff4815d530) = -1 ENOENT (No such file or directory)
openat(AT_FDCWD, "/run/opengl-driver/lib/tls/x86_64/libGLX_mesa.so.0", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat("/run/opengl-driver/lib/tls/x86_64", 0x7fff4815d530) = -1 ENOENT (No such file or directory)
openat(AT_FDCWD, "/run/opengl-driver/lib/tls/libGLX_mesa.so.0", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat("/run/opengl-driver/lib/tls", 0x7fff4815d530) = -1 ENOENT (No such file or directory)
openat(AT_FDCWD, "/run/opengl-driver/lib/x86_64/x86_64/libGLX_mesa.so.0", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat("/run/opengl-driver/lib/x86_64/x86_64", 0x7fff4815d530) = -1 ENOENT (No such file or directory)
openat(AT_FDCWD, "/run/opengl-driver/lib/x86_64/libGLX_mesa.so.0", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat("/run/opengl-driver/lib/x86_64", 0x7fff4815d530) = -1 ENOENT (No such file or directory)
openat(AT_FDCWD, "/run/opengl-driver/lib/x86_64/libGLX_mesa.so.0", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat("/run/opengl-driver/lib/x86_64", 0x7fff4815d530) = -1 ENOENT (No such file or directory)
openat(AT_FDCWD, "/run/opengl-driver/lib/libGLX_mesa.so.0", O_RDONLY|O_CLOEXEC) = 7
openat(AT_FDCWD, "/run/opengl-driver/lib/libGLX_indirect.so.0", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
openat(AT_FDCWD, "/run/opengl-driver/lib/libGLX_mesa.so.0", O_RDONLY|O_CLOEXEC) = 7
openat(AT_FDCWD, "/run/opengl-driver/lib/libGLX_indirect.so.0", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)

But on my previous nixos generation (nixpkgs 8130f3c1c2b) using alacritty 0.4.1 it is working properly.

openat(AT_FDCWD, "/run/opengl-driver/share/glvnd/egl_vendor.d", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 7
openat(AT_FDCWD, "/run/opengl-driver/share/glvnd/egl_vendor.d/50_mesa.json", O_RDONLY) = 7
openat(AT_FDCWD, "/run/opengl-driver/lib/tls/x86_64/x86_64/libGLX_mesa.so.0", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat("/run/opengl-driver/lib/tls/x86_64/x86_64", 0x7ffcb8826270) = -1 ENOENT (No such file or directory)
openat(AT_FDCWD, "/run/opengl-driver/lib/tls/x86_64/libGLX_mesa.so.0", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat("/run/opengl-driver/lib/tls/x86_64", 0x7ffcb8826270) = -1 ENOENT (No such file or directory)
openat(AT_FDCWD, "/run/opengl-driver/lib/tls/x86_64/libGLX_mesa.so.0", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat("/run/opengl-driver/lib/tls/x86_64", 0x7ffcb8826270) = -1 ENOENT (No such file or directory)
openat(AT_FDCWD, "/run/opengl-driver/lib/tls/libGLX_mesa.so.0", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat("/run/opengl-driver/lib/tls", 0x7ffcb8826270) = -1 ENOENT (No such file or directory)
openat(AT_FDCWD, "/run/opengl-driver/lib/x86_64/x86_64/libGLX_mesa.so.0", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat("/run/opengl-driver/lib/x86_64/x86_64", 0x7ffcb8826270) = -1 ENOENT (No such file or directory)
openat(AT_FDCWD, "/run/opengl-driver/lib/x86_64/libGLX_mesa.so.0", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat("/run/opengl-driver/lib/x86_64", 0x7ffcb8826270) = -1 ENOENT (No such file or directory)
openat(AT_FDCWD, "/run/opengl-driver/lib/x86_64/libGLX_mesa.so.0", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat("/run/opengl-driver/lib/x86_64", 0x7ffcb8826270) = -1 ENOENT (No such file or directory)
openat(AT_FDCWD, "/run/opengl-driver/lib/libGLX_mesa.so.0", O_RDONLY|O_CLOEXEC) = 7
openat(AT_FDCWD, "/run/opengl-driver/lib/dri/tls/r600_dri.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
openat(AT_FDCWD, "/run/opengl-driver/lib/dri/r600_dri.so", O_RDONLY|O_CLOEXEC) = 8

[yvt]

I experienced a similar problem with glxinfo, glxgears, and steam installed by nix-env. Forcibly upgrading them by nix-env -u ... --always fixed the issue.

It seems that the problem was caused by the application and its dependencies linking to an older version of glibc than what /run/opengl-driver/lib/libGLX_mesa.so.0 links to, though I'm not entirely sure how all of this works.

$ objdump -x glxgears-fail | grep glibc
  RUNPATH              [...]:/nix/store/qn76sklvyalzw9ilnxz6sh0020gl2qn6-glibc-2.27/lib
$ objdump -x glxgears-ok | grep glibc
  RUNPATH              [...]:/nix/store/8g1v3sf0xvf044sz1b4kcrg1i86z9bh7-glibc-2.30/lib
objdump -x /run/opengl-driver/lib/libGLX_mesa.so.0 | grep glibc
  RUNPATH              [...]:/nix/store/1ncwrl8bplq3xhmj8pxfkx4y0i90vmnx-glibc-2.30/lib:[...]

When LD_DEBUG=files is given, glxgears-fail produces the following output:

$ env LD_DEBUG=files ./glxgears-fail
[...]
      3828: file=libGLX_mesa.so.0 [0];  dynamically loaded by /nix/store/ym4x1sv39xgsc4hvhdnmavbwy4yg2wsc-libglvnd-1.2.0/lib/libGLX.so.0 [0]
      3828: file=libGLX_mesa.so.0 [0];  generating link map
      3828:   dynamic: 0x00007f7339a124c0  base: 0x00007f7339998000   size: 0x00000000000846e8
      3828:     entry: 0x00007f73399b4ee0  phdr: 0x00007f7339a15000  phnum:                 10
[...]
      3828: /nix/store/qn76sklvyalzw9ilnxz6sh0020gl2qn6-glibc-2.27/lib/libm.so.6: error: version lookup error: version `GLIBC_2.29' not found (required by /run/opengl-driver/lib/libGLX_mesa.so.0) (fatal)
      3828:
      3828: file=/run/opengl-driver/lib/libGLX_mesa.so.0 [0];  destroying link map

[karolchmist]

I confirm that nix-env -u ... --always fixes the problem.

There is a thread on discourse that explains the reasons behind this kind of problems with libGL:
https://discourse.nixos.org/t/libgl-undefined-symbol-glxgl-core-functions/512/6

I'll close this issue as there is apparently no solution.

[Mic92]

I also recommend using tools like home-manager over nix-env to maintain packages. This usually avoids having to remember updating packages.