ubuntu 18.04 GDM - missing icons and letters on login screen with nouveau + Wayland

[Ahmet Aksoy]

WORKAROUND:

Edit /etc/gdm3/custom.conf and uncomment:
  #WaylandEnable=false

---

Ubuntu 18.04(Updated 30.03.2018)
System Language: Turkish
Please check screenshots
---
ApportVersion: 2.20.9-0ubuntu2
Architecture: amd64
CurrentDesktop: GNOME
DistroRelease: Ubuntu 18.04
InstallationDate: Installed on 2018-03-24 (9 days ago)
InstallationMedia: Ubuntu 18.04 LTS "Bionic Beaver" - Alpha amd64 (20180324)
Package: gnome-shell
PackageArchitecture: amd64
ProcVersionSignature: Ubuntu 4.15.0-13.14-generic 4.15.10
Tags: bionic
Uname: Linux 4.15.0-13-generic x86_64
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo
_MarkForUpload: True

[Daniel van Vugt (vanvugt)]

Thank you for taking the time to report this bug and helping to make Ubuntu better. Please execute the following command only once, as it will automatically gather debugging information, in a terminal:

apport-collect 1760201

When reporting bugs in the future please use apport by using 'ubuntu-bug' and the name of the package affected. You can learn more about this functionality at https://wiki.ubuntu.com/ReportingBugs.

[Ahmet Aksoy (parduist)]

apport information

[Ahmet Aksoy (parduist)]

apport information

[Ahmet Aksoy (parduist)]

apport information

[Sebastien Bacher (seb128)]

the issue could be a missing font?

[Ahmet Aksoy (parduist)]

Lock screen normal only login screen have this bug

[Sebastien Bacher (seb128)]

Could you add your journalctl log to the bug?

[Ahmet Aksoy (parduist)]

i find user-1000.journal file its 50,3 mb. is it correct file?

[Ahmet Aksoy (parduist)]

https://gist.github.com/Parduk/54ab53a12ec063ae6c3bc945f326130b

[Launchpad Janitor (janitor)]

Status changed to 'Confirmed' because the bug affects multiple users.

[Daniel van Vugt (vanvugt)]

Confirmed also with LANGUAGE=it_IT.UTF-8 (bug 1764071)

[Daniel van Vugt (vanvugt)]

Ahmet, are you using multiple monitors?

[Ahmet Aksoy (parduist)]

@vanvugt No, but system detect 2 screens https://bugs.launchpad.net/ubuntu/+source/nvidia-graphics-drivers-390/+bug/1762200

nouveau always been detects 2 screen (primary screen always laptop screen)
but nvidia proprietary driver first time detects 2 screen with 18.04 and primary display is unknown display. (nvidia proprietary was okey with 17.10 and previous versions )

my english not good sorry about that

[Daniel van Vugt (vanvugt)]

All: Please run this command and send us the output:

lspci -k

[Ahmet Aksoy (parduist)]

lspci -k

https://gist.github.com/Parduk/24cd9e7d3957a740c6b7764a46f83e85

[Daniel van Vugt (vanvugt)]

@ultrabit, please run: lspci -k

[Ahmet Aksoy (parduist)]

lspci -k (nouveau)

https://gist.github.com/Parduk/22ea2c9f64d3d865a4ef2ee8623d6399

[ultrabit (ultrabit)]

Sorry for delay...

[Daniel van Vugt (vanvugt)]

Thanks. The common factor then in both reports of this bug is that nouveau is in use. And historically, this isn't surprising. Nouveau has occasionally had such missing textures bugs like this over the years.

Please try installing the Nvidia proprietary driver if you haven't already:

  sudo apt install nvidia-driver-390

Another fix which may be required at the same time, or as an alternative is to tell gdm3 to not try to use Wayland. You can do that by editing /etc/gdm3/custom.conf and uncommenting:

  #WaylandEnable=false

[Ahmet Aksoy (parduist)]

WaylandEnable=false solved my problem. Thank you.
Ubuntu 18.04 using default xorg, why gdm using wayland?
Will you set gdm default xorg?

[Daniel van Vugt (vanvugt)]

The problem may not be Wayland as much as forcing X allows the Nvidia driver to work and avoids Nouveau and its bugs.

It's too late to consider changing the default. We have only 2 days to final freeze.

[ultrabit (ultrabit)]

Well using nvidia proprietary driver is solving for me (nothing changed in gdm3 custum.conf).

I switched to the nouveau driver when, a couple on month ago, nvidia driver stop working with the new linux kernel version. But it seems they have some other issue at now (i just filed a new bug report :D). This is a never end story.

Thx!

[Ahmet Aksoy (parduist)]

Thank you for information. nvidia-driver-390 driver have problems too, i hope you can fix before the 18.04 final release. (https://bugs.launchpad.net/ubuntu/+source/nvidia-graphics-drivers-390/+bug/1762200)
Last question; mutter 3.28.1 not released when it will release and will you put in 18.04? (maybe bug 1762200 about mutter)

[Daniel van Vugt (vanvugt)]

Also, if anyone can reproduce the problem again, do you find nouveau errors in your kernel log around the time of the missing rendering?

Run 'dmesg' to see it all.

[Ahmet Aksoy (parduist)]

[16738.253190] nouveau 0000:01:00.0: Direct firmware load for nouveau/nvc1_fuc084 failed with error -2
[16738.253198] nouveau 0000:01:00.0: Direct firmware load for nouveau/nvc1_fuc084d failed with error -2
[16738.253200] nouveau 0000:01:00.0: msvld: unable to load firmware data
[16738.253204] nouveau 0000:01:00.0: msvld: init failed, -19

[Daniel van Vugt (vanvugt)]

This bug has been reported with both GF106 (bug 1775279) and GM107GLM (this bug) hardware.

[Wade Pedersen (wmpedersen)]

I'd like to report that this issue is also being reproduced with nouveau on NVIDIA GF108. However, my dmesg does not seem to contain nouveau errors.

dmesg sample containing nouveau (as above):
[ 5.254956] nouveau 0000:01:00.0: enabling device (0006 -> 0007)
[ 5.255096] nouveau 0000:01:00.0: NVIDIA GF108 (0c1480a1)
[ 5.285074] nouveau 0000:01:00.0: bios: version 70.08.a8.00.2b
[ 5.393498] nouveau 0000:01:00.0: fb: 2048 MiB DDR3
[ 5.449440] nouveau 0000:01:00.0: DRM: VRAM: 2048 MiB
[ 5.449441] nouveau 0000:01:00.0: DRM: GART: 1048576 MiB
[ 5.449444] nouveau 0000:01:00.0: DRM: TMDS table version 2.0
[ 5.449454] nouveau 0000:01:00.0: DRM: DCB version 4.0
[ 5.449455] nouveau 0000:01:00.0: DRM: DCB outp 00: 02010300 00000000
[ 5.449457] nouveau 0000:01:00.0: DRM: DCB conn 00: 00000000
[ 5.451120] nouveau 0000:01:00.0: DRM: MM: using COPY0 for buffer copies
[ 5.485363] nouveau 0000:01:00.0: DRM: allocated 1024x768 fb: 0x60000, bo 0000000010a8d043
[ 5.488176] nouveau 0000:01:00.0: fb0: nouveaufb frame buffer device
[ 5.512017] [drm] Initialized nouveau 1.3.1 20120801 for 0000:01:00.0 on minor 1

[Wade Pedersen (wmpedersen)]

I just wanted to state that this issue seems to have resolved itself. I've grabbed the updated packages from apt and these are what I believe the relevant updates were. Is there any more information that might be more useful?

Start-Date: 2018-07-10 18:20:32
libwayland-egl1-mesa:amd64 (18.0.0~rc5-1ubuntu1, 18.0.5-0ubuntu0~18.04.1)

2018-07-19 21:31:00
gdm3:amd64 (3.28.2-0ubuntu1.2, 3.28.2-0ubuntu1.3)
gir1.2-gdm-1.0:amd64 (3.28.2-0ubuntu1.2, 3.28.2-0ubuntu1.3)
libgdm1:amd64 (3.28.2-0ubuntu1.2, 3.28.2-0ubuntu1.3)

[Daniel van Vugt (vanvugt)]

Thank you for reporting this bug to Ubuntu.

Ubuntu 18.04 (bionic) reached end-of-standard-support on May 31, 2023.

See this document for currently supported Ubuntu releases:
https://wiki.ubuntu.com/Releases

We appreciate that this bug may be old and you might not be interested in discussing it anymore. But if you are then please upgrade to the latest Ubuntu version and re-test. If you then find the bug is still present in the newer Ubuntu version, please add a comment here telling us which new version it is in.