[Bug 1017175] New: With Kernel 4.4: crash of sddm and it seems of the X server (repeatable)
http://bugzilla.opensuse.org/show_bug.cgi?id=1017175 Bug ID: 1017175 Summary: With Kernel 4.4: crash of sddm and it seems of the X server (repeatable) Classification: openSUSE Product: openSUSE Distribution Version: Leap 42.2 Hardware: x86-64 OS: openSUSE 42.2 Status: NEW Severity: Normal Priority: P5 - None Component: Kernel Assignee: kernel-maintainers@forge.provo.novell.com Reporter: stakanov@freenet.de QA Contact: qa-bugs@suse.de Found By: --- Blocker: --- Laptop X201 Lenovo (not brandnew hardware). After update to 42.2 - when starting the system sddm shows user selection. 1st selection problem free. When selecting change user: a) if I click explicitly on the "Plus" symbol of sddm then a new sddm window opens and I can select that user. The users starts and I can from there select a third etc. b) if I just click on "change user" without selecting the "plus" explicitly, sddm crashes immediately. And the current user crashes too. It seems the the session is still running but that the desktop is reduced to a 1 mm wide stripe on the left side of the screen, no interaction is possible. A hard reset is necessary as all tty are now black and unresponsive. This is repeatable to 100%. c) if you do as in a) and you have several users open, then following applies: The use of ctrl+alt+F7,8,9 (etc) to select another user will result in immediate crash of sddm and all other open sessions. The rest is like in b). Repeatable to 100% - always. This is clearly kernel dependent: if you use instead the kernel from kernel stable (currently kernel 4.9) then all this does not happen any more. So the kernel 4.4 from the standard 42.2 breaks something on this system. If you are interested to find the reasons and guide me: I have both kernel versions installed and can switch easily. Starting the machine with the 4.4 is giving the results as of above. Repeatable. -- You are receiving this mail because: You are on the CC list for the bug.
http://bugzilla.opensuse.org/show_bug.cgi?id=1017175
http://bugzilla.opensuse.org/show_bug.cgi?id=1017175#c1
Takashi Iwai
http://bugzilla.opensuse.org/show_bug.cgi?id=1017175
http://bugzilla.opensuse.org/show_bug.cgi?id=1017175#c2
Stakanov Schufter
http://bugzilla.opensuse.org/show_bug.cgi?id=1017175
http://bugzilla.opensuse.org/show_bug.cgi?id=1017175#c4
--- Comment #4 from Stakanov Schufter
http://bugzilla.opensuse.org/show_bug.cgi?id=1017175
http://bugzilla.opensuse.org/show_bug.cgi?id=1017175#c5
Stakanov Schufter
http://bugzilla.opensuse.org/show_bug.cgi?id=1017175
http://bugzilla.opensuse.org/show_bug.cgi?id=1017175#c9
Stakanov Schufter
http://bugzilla.opensuse.org/show_bug.cgi?id=1017175
http://bugzilla.opensuse.org/show_bug.cgi?id=1017175#c17
--- Comment #17 from Stakanov Schufter
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