Xorg crashes with ../../../../dix/privates.c:384: dixRegisterPrivateKey: Assertion `!global_keys[type].created' failed.

[Pere]

Actually this is not the version that freezes the boot. With a clean install both of groovy and focal I can use the computer with no problem. The bug appears after installing the prompted updates at first login.

I have three different outcomes when it comes to booting:
- Blinking underscore cursor (with no error messages on the screen)
- iwlwifi unhandled algorithm 0x707 error
- FAULT found at 00000000 [IBUS] not exactly this message

I guess I could install updates one by one and see which one faults at boot, then boot through tty4 (it is the only way I've found to do it after boot fails, or freezes) and then link the logs to this issue.

I could really use some guidance from a more experienced user because I don't really know how to debug this things :D

ProblemType: Bug
DistroRelease: Ubuntu 20.10
Package: xorg 1:7.7+19ubuntu15
ProcVersionSignature: Ubuntu 5.8.0-48.54-generic 5.8.18
Uname: Linux 5.8.0-48-generic x86_64
ApportVersion: 2.20.11-0ubuntu50.5
Architecture: amd64
BootLog: Error: [Errno 13] Permission denied: '/var/log/boot.log'
CasperMD5CheckResult: skip
CompositorRunning: None
CurrentDesktop: ubuntu:GNOME
Date: Fri Apr 9 08:51:36 2021
DistUpgraded: Fresh install
DistroCodename: groovy
DistroVariant: ubuntu
ExtraDebuggingInterest: Yes
GpuHangFrequency: Continuously
GpuHangReproducibility: Occurs more often under certain circumstances
GpuHangStarted: Immediately after installing this version of Ubuntu
GraphicsCard:
 Intel Corporation UHD Graphics [8086:9a49] (rev 01) (prog-if 00 [VGA controller])
   Subsystem: Dell UHD Graphics [1028:09d9]
   Subsystem: Dell GP107M [GeForce MX350] [1028:09d9]
InstallationDate: Installed on 2021-04-08 (0 days ago)
InstallationMedia: Ubuntu 20.10 "Groovy Gorilla" - Release amd64 (20201022)
MachineType: Dell Inc. Inspiron 7400
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-5.8.0-48-generic root=UUID=b912e5af-f189-4002-8e26-306f96626d10 ro quiet splash vt.handoff=7
SourcePackage: xorg
Symptom: display
Title: Xorg freeze
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 02/26/2021
dmi.bios.release: 1.5
dmi.bios.vendor: Dell Inc.
dmi.bios.version: 1.5.1
dmi.board.name: 072W08
dmi.board.vendor: Dell Inc.
dmi.board.version: A00
dmi.chassis.type: 10
dmi.chassis.vendor: Dell Inc.
dmi.modalias: dmi:bvnDellInc.:bvr1.5.1:bd02/26/2021:br1.5:svnDellInc.:pnInspiron7400:pvr:rvnDellInc.:rn072W08:rvrA00:cvnDellInc.:ct10:cvr:
dmi.product.family: Inspiron
dmi.product.name: Inspiron 7400
dmi.product.sku: 09D9
dmi.sys.vendor: Dell Inc.
version.compiz: compiz N/A
version.libdrm2: libdrm2 2.4.102-1ubuntu1
version.libgl1-mesa-dri: libgl1-mesa-dri 20.2.1-1
version.libgl1-mesa-glx: libgl1-mesa-glx N/A
version.xserver-xorg-core: xserver-xorg-core 2:1.20.9-2ubuntu1.1
version.xserver-xorg-input-evdev: xserver-xorg-input-evdev N/A
version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:19.1.0-1ubuntu1
version.xserver-xorg-video-intel: xserver-xorg-video-intel 2:2.99.917+git20200714-1
version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:1.0.16-1

[Daniel van Vugt (vanvugt)]

Thanks for the bug report. We will need to see a screenshot or original log of the problem while it is happening. Not just a vague recollection that there was a problem.

[Pere (perepm)]

Thanks for your reply Daniel. What logs would you be referring to? I'll get them gladly :D

[Pere (perepm)]

This is the journal, would it be useful? After the last update I'm getting the failed boot with blinking cursor. I managed to open tty4, login and run `startx` which I noticed is different from the gui I have been using.

[Daniel van Vugt (vanvugt)]

I see the fault you mentioned:

abr 09 08:26:14 ppicom-Inspiron-7400 kernel: nouveau 0000:01:00.0: bus: MMIO read of 00000000 FAULT at 6013d4 [ IBUS ]

That could certainly cause freezes because the open source 'nouveau' driver is often unstable. To avoid that, please open the 'Additional Drivers' app and install the recommended NVIDIA driver.

[Daniel van Vugt (vanvugt)]

If the instructions in comment #5 don't fix the problem then please:

1. Reproduce the freeze again.

2. Wait at least 10 seconds.

3. Reboot.

4. Run this command:

   journalctl -b-1 > prevboot.txt

5. Attach the resulting text file here.

[Pere (perepm)]

I already switched from nouveau to nvidia drivers and still get the problem. I'll do hat you said and attach it :)

I've alse seen trouble with iwlwifi. Be attaching that in just a sec :D

Thanks a lot Daniel, I really appreciate your help

[Pere (perepm)]

I have shutdown, then started with the power button. I've gotten to the blinking underscore cursor and waited 10 seconds. Opened tty4 and executed sudo reboot. Then I got to the blinking cursor again, openned tty4 again and run journalctl -b -1 > prevboot.txt, and the startx

[Daniel van Vugt (vanvugt)]

Thank you for taking the time to report this bug and helping to make Ubuntu better. This particular bug has already been reported and is a duplicate of bug 1811023, so it is being marked as such. Please look at the other bug report to see if there is any missing information that you can provide, or to see if there is a workaround for the bug. Additionally, any further discussion regarding the bug should occur in the other report. Feel free to continue to report any other bugs you may find.