one last thing I can give you:
A coredump:
PID: 1066 (sddm-greeter)
UID: 118 (sddm)
GID: 126 (sddm)
Signal: 11 (SEGV)
Timestamp: Fri 2018-08-17 10:58:44 EEST (4min 40s ago)
Command Line: /usr/bin/sddm-greeter --socket /tmp/sddm-:0-OglRQe --theme
/usr/share/sddm/themes/breeze
Executable: /usr/bin/sddm-greeter
Control Group: /user.slice/user-118.slice/session-1.scope
Unit: session-1.scope
Slice: user-118.slice
Session: 1
Owner UID: 118 (sddm)
Boot ID: 581e1a9cb9954ea3a7d3f113c2319d64
Machine ID: 22374589e49642888b947732702d7902
Hostname: itlap
Storage:
/var/lib/systemd/coredump/core.sddm-greeter.118.581e1a9cb9954ea3a7d3f113c2319d64.1066.1534492724000000.lz4
Message: Process 1066 (sddm-greeter) of user 118 dumped core.
Stack trace of thread 1066:
#0 0x00007f93fb36d6ce n/a (nouveau_dri.so)
#1 0x00007f93fb36c1f9 n/a (nouveau_dri.so)
#2 0x00007f93fb374404 n/a (nouveau_dri.so)
#3 0x00007f940fd53f88
_ZN16QSGBatchRenderer8Renderer13renderBatchesEv (libQt5Quick.so.5)
#4 0x00007f940fd5985e _ZN16QSGBatchRenderer8Renderer6renderEv
(libQt5Quick.so.5)
#5 0x00007f940fd4a2a0
_ZN11QSGRenderer11renderSceneERK11QSGBindable (libQt5Quick.so.5)
#6 0x00007f940fd4a75b _ZN11QSGRenderer11renderSceneEj
(libQt5Quick.so.5)
#7 0x00007f940fd84990
_ZN23QSGDefaultRenderContext15renderNextFrameEP11QSGRendererj (libQt5Quick.so.5)
#8 0x00007f940fde2a08
_ZN19QQuickWindowPrivate16renderSceneGraphERK5QSize (libQt5Quick.so.5)
#9 0x00007f940fd76ec9 n/a (libQt5Quick.so.5)
#10 0x00007f940fd77eaa n/a (libQt5Quick.so.5)
#11 0x00007f940e53f375 _ZN7QWindow5eventEP6QEvent
(libQt5Gui.so.5)
#12 0x00007f940fdec565 _ZN12QQuickWindow5eventEP6QEvent
(libQt5Quick.so.5)
#13 0x00007f940df7183a
_ZN16QCoreApplication6notifyEP7QObjectP6QEvent (libQt5Core.so.5)
#14 0x00007f940df719a8
_ZN16QCoreApplication15notifyInternal2EP7QObjectP6QEvent (libQt5Core.so.5)
#15 0x00007f940e53443f
_ZN22QGuiApplicationPrivate18processExposeEventEPN29QWindowSystemInterfacePrivate11ExposeEventE
(libQt5Gui.so.5)
#16 0x00007f940e53507d
_ZN22QGuiApplicationPrivate24processWindowSystemEventEPN29QWindowSystemInterfacePrivate17WindowSystemEventE
(libQt5Gui.so.5)
#17 0x00007f940e50c2eb
_ZN22QWindowSystemInterface22sendWindowSystemEventsE6QFlagsIN10QEventLoop17ProcessEventsFlagEE
(libQt5Gui.so.5)
#18 0x00007f94066d81c0 n/a (libQt5XcbQpa.so.5)
#19 0x00007f940a774287 g_main_context_dispatch
(libglib-2.0.so.0)
#20 0x00007f940a7744c0 n/a (libglib-2.0.so.0)
#21 0x00007f940a77454c g_main_context_iteration
(libglib-2.0.so.0)
#22 0x00007f940dfca8ef
_ZN20QEventDispatcherGlib13processEventsE6QFlagsIN10QEventLoop17ProcessEventsFlagEE
(libQt5Core.so.5)
#23 0x00007f940df6f9ea
_ZN10QEventLoop4execE6QFlagsINS_17ProcessEventsFlagEE (libQt5Core.so.5)
#24 0x00007f940df78a84 _ZN16QCoreApplication4execEv
(libQt5Core.so.5)
#25 0x0000563f63e5db79 main (sddm-greeter)
#26 0x00007f940d371b97 __libc_start_main (libc.so.6)
#27 0x0000563f63e5dcfa _start (sddm-greeter)
Stack trace of thread 1069:
#0 0x00007f940d464bf9 __GI___poll (libc.so.6)
#1 0x00007f940f9cf747 n/a (libxcb.so.1)
#2 0x00007f940f9d136a xcb_wait_for_event (libxcb.so.1)
#3 0x00007f94066752a9 n/a (libQt5XcbQpa.so.5)
#4 0x00007f940dd9316d n/a (libQt5Core.so.5)
#5 0x00007f940c02b6db start_thread (libpthread.so.0)
#6 0x00007f940d47188f __clone (libc.so.6)
Stack trace of thread 1070:
#0 0x00007f940c0319f3 futex_wait_cancelable (GNU gdb (Ubuntu
8.1-0ubuntu3) 8.1.0.20180409-git
Copyright (C) 2018 Free Software Foundation, Inc.
License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>
This is free software: you are free to change and redistribute it.
There is NO WARRANTY, to the extent permitted by law. Type "show copying"
and "show warranty" for details.
This GDB was configured as "x86_64-linux-gnu".
Type "show configuration" for configuration details.
For bug reporting instructions, please see:
<http://www.gnu.org/software/gdb/bugs/>.
Find the GDB manual and other documentation resources online at:
<http://www.gnu.org/software/gdb/documentation/>.
For help, type "help".
Type "apropos word" to search for commands related to "word"...
Reading symbols from /usr/bin/sddm-greeter...(no debugging symbols
found)...done.
[New LWP 1066]
[New LWP 1069]
[New LWP 1070]
[New LWP 1071]
[New LWP 1076]
[New LWP 1125]
[New LWP 1126]
[Thread debugging using libthread_db enabled]
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
Core was generated by `/usr/bin/sddm-greeter --socket /tmp/sddm-:0-OglRQe
--theme /usr/share/sddm/them'.
Program terminated with signal SIGSEGV, Segmentation fault.
#0 0x00007f93fb36d6ce in ?? () from
/usr/lib/x86_64-linux-gnu/dri/nouveau_dri.so
[Current thread is 1 (Thread 0x7f9410417800 (LWP 1066))]
(gdb) (gdb) quit
libpthread.so.0)
#1 0x00007f93fb46d46b n/a (nouveau_dri.so)
#2 0x00007f93fb46d197 n/a (nouveau_dri.so)
#3 0x00007f940c02b6db start_thread (libpthread.so.0)
#4 0x00007f940d47188f __clone (libc.so.6)
Stack trace of thread 1071:
#0 0x00007f940d464bf9 __GI___poll (libc.so.6)
#1 0x00007f940a774439 n/a (libglib-2.0.so.0)
#2 0x00007f940a77454c g_main_context_iteration
(libglib-2.0.so.0)
#3 0x00007f940dfca8ef
_ZN20QEventDispatcherGlib13processEventsE6QFlagsIN10QEventLoop17ProcessEventsFlagEE
(libQt5Core.so.5)
#4 0x00007f940df6f9ea
_ZN10QEventLoop4execE6QFlagsINS_17ProcessEventsFlagEE (libQt5Core.so.5)
#5 0x00007f940dd8e22a _ZN7QThread4execEv (libQt5Core.so.5)
#6 0x00007f940f2076f5 n/a (libQt5Qml.so.5)
#7 0x00007f940dd9316d n/a (libQt5Core.so.5)
#8 0x00007f940c02b6db start_thread (libpthread.so.0)
#9 0x00007f940d47188f __clone (libc.so.6)
Stack trace of thread 1076:
#0 0x00007f940d464bf9 __GI___poll (libc.so.6)
#1 0x00007f940a774439 n/a (libglib-2.0.so.0)
#2 0x00007f940a77454c g_main_context_iteration
(libglib-2.0.so.0)
#3 0x00007f940dfca8ef
_ZN20QEventDispatcherGlib13processEventsE6QFlagsIN10QEventLoop17ProcessEventsFlagEE
(libQt5Core.so.5)
#4 0x00007f940df6f9ea
_ZN10QEventLoop4execE6QFlagsINS_17ProcessEventsFlagEE (libQt5Core.so.5)
#5 0x00007f940dd8e22a _ZN7QThread4execEv (libQt5Core.so.5)
#6 0x00007f9406181d45 n/a (libQt5DBus.so.5)
#7 0x00007f940dd9316d n/a (libQt5Core.so.5)
#8 0x00007f940c02b6db start_thread (libpthread.so.0)
#9 0x00007f940d47188f __clone (libc.so.6)
Stack trace of thread 1125:
#0 0x00007f940c0319f3 futex_wait_cancelable (libpthread.so.0)
#1 0x00007f940dd9459b _ZN14QWaitCondition4waitEP6QMutexm
(libQt5Core.so.5)
#2 0x00007f940dd8cc0b _ZN10QSemaphore7acquireEi
(libQt5Core.so.5)
#3 0x00007f9401d9375b n/a (libqtvirtualkeyboardplugin.so)
#4 0x00007f940dd9316d n/a (libQt5Core.so.5)
#5 0x00007f940c02b6db start_thread (libpthread.so.0)
#6 0x00007f940d47188f __clone (libc.so.6)
Stack trace of thread 1126:
#0 0x00007f940c0319f3 futex_wait_cancelable (libpthread.so.0)
#1 0x00007f940dd9459b _ZN14QWaitCondition4waitEP6QMutexm
(libQt5Core.so.5)
#2 0x00007f93da29ea3f n/a (libqmlfolderlistmodelplugin.so)
#3 0x00007f940dd9316d n/a (libQt5Core.so.5)
#4 0x00007f940c02b6db start_thread (libpthread.so.0)
#5 0x00007f940d47188f __clone (libc.so.6)
--
You received this bug notification because you are a member of Kernel
Packages, which is subscribed to linux in Ubuntu.
https://bugs.launchpad.net/bugs/1783957
Title:
Nouveau crashes at login with Kernel 4.15.0-29 on MacBook Air, so no
login screen in a normal sequence
Status in linux package in Ubuntu:
Triaged
Status in linux source package in Bionic:
Triaged
Status in linux source package in Cosmic:
Triaged
Bug description:
I have a MacBook Air laptop which is running Linux (Kubuntu 16.04.5
LTS) with NVidia Graphics Card, KDE, Xorg, SDDM, and so on... Clean
and natural install, no funky custom kernel or drivers or anything...
Everything worked fine (with the 4.13.* kernel) until I've upgraded
all my packages (which included the "wonderful" 4.15.0-29 kernel,
which broke my system).
Now, everytime I try to boot normally, it asks me for my disk password (I
have an encrypted LVM) and after that, guess what ?: blank screen. The login
screen does not appear.
I can switch the Terminals with Ctrl+Alt+Fx, however.
However, the same kernel, if I boot it in recovery mode and then I
select "Resume", the login screen appears, but it lags a little bit...
Needless to say, if I boot the older kernel (4.13), everything works
perfectly.
I dug up some logs and found something like "sddm-greeter"
segmentation fault in nouveau_dri.so or something like this.
So, it looks like the new kernel doesn't quite seem to look eye-to-eye
with nouveau drivers...
And no, I don't want the NVidia proprietary drivers because I get
along just perfectly with Nouveau on other machines, and I don't want
to reinstall nvidia drivers everytime I'm upgrading the kernel.
And yes, I already have "haveged" installed, to provide sufficient
entropy (I saw that the possible lack of entropy might be a problem in
some cases)...
If I boot in recovery mode and then select "resume", everything works.
So, what is going on ?
Any help would be appreciated...
ProblemType: Bug
DistroRelease: Ubuntu 16.04
Package: xorg 1:7.7+13ubuntu3
ProcVersionSignature: Ubuntu 4.15.0-29.31~16.04.1-generic 4.15.18
Uname: Linux 4.15.0-29-generic x86_64
ApportVersion: 2.20.1-0ubuntu2.18
Architecture: amd64
CurrentDesktop: KDE
Date: Fri Jul 27 10:40:31 2018
InstallationDate: Installed on 2018-07-04 (22 days ago)
InstallationMedia: Kubuntu 16.04.4 LTS "Xenial Xerus" - Release amd64
(20180228)
SourcePackage: xorg
UpgradeStatus: No upgrade log present (probably fresh install)
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https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1783957/+subscriptions
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