[nouveau] Xorg freeze

[Gabriel Holmlund]

Every time i press the "windows" key which is by default mapped to "launch gnome search" the search launches but i cannot close it. The Escape key doesn't work at all and as far as i know the only solution to this problem is to log out and login again. This didnt occur when I was using 18.10 but after the upgrade to 19.04 this is indeed a problem. I'm aware that this issue might have something to so with the graphics drivers.

root@aeshatter-XPS-15-9550:/home/aeshatter# lshw -c video
  *-display
       description: 3D controller
       product: GM107M [GeForce GTX 960M]
       vendor: NVIDIA Corporation
       physical id: 0
       bus info: pci@0000:01:00.0
       version: a2
       width: 64 bits
       clock: 33MHz
       capabilities: pm msi pciexpress bus_master cap_list rom
       configuration: driver=nouveau latency=0
       resources: irq:126 memory:dc000000-dcffffff memory:b0000000-bfffffff memory:c0000000-c1ffffff ioport:e000(size=128) memory:dd000000-dd07ffff
  *-display
       description: VGA compatible controller
       product: HD Graphics 530
       vendor: Intel Corporation
       physical id: 2
       bus info: pci@0000:00:02.0
       version: 06
       width: 64 bits
       clock: 33MHz
       capabilities: pciexpress msi pm vga_controller bus_master cap_list rom
       configuration: driver=i915 latency=0
       resources: irq:127 memory:db000000-dbffffff memory:70000000-7fffffff ioport:f000(size=64) memory:c0000-dffff

ProblemType: Bug
DistroRelease: Ubuntu 19.04
Package: xorg 1:7.7+19ubuntu12
ProcVersionSignature: Ubuntu 5.0.0-15.16-generic 5.0.6
Uname: Linux 5.0.0-15-generic x86_64
.tmp.unity_support_test.0:

ApportVersion: 2.20.10-0ubuntu27
Architecture: amd64
CompizPlugins: No value set for `/apps/compiz-1/general/screen0/options/active_plugins'
CompositorRunning: None
CurrentDesktop: ubuntu:GNOME
Date: Thu May 16 22:00:45 2019
DistUpgraded: 2019-05-06 07:50:18,514 ERROR got error from PostInstallScript ./xorg_fix_proprietary.py (g-exec-error-quark: Failed to execute child process “./xorg_fix_proprietary.py” (No such file or directory) (8))
DistroCodename: disco
DistroVariant: ubuntu
DkmsStatus:
 virtualbox, 6.0.6, 5.0.0-13-generic, x86_64: installed
 virtualbox, 6.0.6, 5.0.0-15-generic, x86_64: installed
EcryptfsInUse: Yes
ExtraDebuggingInterest: Yes
GpuHangFrequency: Continuously
GpuHangReproducibility: Yes, I can easily reproduce it
GpuHangStarted: Today
GraphicsCard:
 Intel Corporation HD Graphics 530 [8086:191b] (rev 06) (prog-if 00 [VGA controller])
   Subsystem: Dell XPS 15 9550 [1028:06e4]
   Subsystem: Dell XPS 15 9550 [1028:06e4]
InstallationDate: Installed on 2016-06-07 (1073 days ago)
InstallationMedia: Ubuntu 16.04 LTS "Xenial Xerus" - Release amd64 (20160420.1)
MachineType: Dell Inc. XPS 15 9550
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-5.0.0-15-generic root=UUID=a31f340c-9c8b-441e-a80e-2684dd9d9ae9 ro quiet splash vt.handoff=1
SourcePackage: xorg
Symptom: display
Title: Xorg freeze
UpgradeStatus: Upgraded to disco on 2019-05-06 (10 days ago)
dmi.bios.date: 10/11/2018
dmi.bios.vendor: Dell Inc.
dmi.bios.version: 1.9.0
dmi.board.name: 0N7TVV
dmi.board.vendor: Dell Inc.
dmi.board.version: A01
dmi.chassis.type: 9
dmi.chassis.vendor: Dell Inc.
dmi.modalias: dmi:bvnDellInc.:bvr1.9.0:bd10/11/2018:svnDellInc.:pnXPS159550:pvr:rvnDellInc.:rn0N7TVV:rvrA01:cvnDellInc.:ct9:cvr:
dmi.product.family: XPS
dmi.product.name: XPS 15 9550
dmi.product.sku: 06E4
dmi.sys.vendor: Dell Inc.
version.compiz: compiz 1:0.9.14.0+19.04.20190223.1-0ubuntu1
version.libdrm2: libdrm2 2.4.97-1ubuntu1
version.libgl1-mesa-dri: libgl1-mesa-dri 19.0.2-1ubuntu1
version.libgl1-mesa-glx: libgl1-mesa-glx 19.0.2-1ubuntu1
version.xserver-xorg-core: xserver-xorg-core 2:1.20.4-1ubuntu3
version.xserver-xorg-input-evdev: xserver-xorg-input-evdev 1:2.10.6-1
version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:19.0.1-0ubuntu1
version.xserver-xorg-video-intel: xserver-xorg-video-intel 2:2.99.917+git20180925-2
version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:1.0.16-1
xserver.bootTime: Tue May 29 09:51:38 2018
xserver.configfile: default
xserver.logfile: /var/log/Xorg.0.log
xserver.outputs:

xserver.version: 2:1.19.6-1ubuntu4

[Daniel van Vugt (vanvugt)]

Thanks for the bug report.

1. If you have any gnome-shell extensions (other than the default Ubuntu ones) then please uninstall them and retest. We find a large number of bugs are caused by Gnome extensions.

2. Your kernel log mentions a few errors from the nouveau kernel driver:

[ 274.310794] nouveau 0000:01:00.0: bus: MMIO read of 00000000 FAULT at 619444 [ IBUS ]
[ 274.959650] nouveau 0000:01:00.0: bus: MMIO read of 00000000 FAULT at 619444 [ IBUS ]
[ 294.627149] nouveau 0000:01:00.0: bus: MMIO read of 00000000 FAULT at 619444 [ IBUS ]
[ 305.108717] nouveau 0000:01:00.0: bus: MMIO read of 00000000 FAULT at 619444 [ IBUS ]

but we can't know for sure if those are related to what you see.

Please try installing the proprietary Nvidia driver instead, as it usually provides better stability:

  sudo apt install nvidia-driver-418

I am confident one of those two suggestions will solve the problem. Please tell us which (if any) works.

[Gabriel Holmlund (aeshatter)]

Removing extensions did the trick! I removed all except "Ubuntu dock" and "Ubuntu appindicators". I dont know if they were installed by me or came out of the box though.. Thanks for your help!