http://bugzilla.opensuse.org/show_bug.cgi?id=1089116 Bug ID: 1089116 Summary: Flashing screen on startup - X-Server segmentation fault Classification: openSUSE Product: openSUSE Distribution Version: Leap 15.0 Hardware: x86-64 OS: All Status: NEW Severity: Major Priority: P5 - None Component: X.Org Assignee: xorg-maintainer-bugs@forge.provo.novell.com Reporter: suse.junky@t-online.de QA Contact: xorg-maintainer-bugs@forge.provo.novell.com Found By: --- Blocker: --- Created attachment 766766 --> http://bugzilla.opensuse.org/attachment.cgi?id=766766&action=edit Xorg logfile I installed Leap 15.0 Build191.1 on my Laptop. When i start the system somewhere in the boot process the screen starts flashing and the only way out is to press "Ctrl+Alt+Del" until the system starts rebooting. Booting the Rescue System (from the installation device) and looking at "/var/log/Xorg.0.log" reveals: [ 81.000] (EE) FBDEV(0): FBIOPUTCMAP: Device or resource busy [ 81.000] (EE) FBDEV(0): FBIOPUTCMAP: Device or resource busy [ 81.000] (==) FBDEV(0): DPMS enabled [ 81.000] (--) RandR disabled [ 81.004] (II) AIGLX: Screen 0 is not DRI2 capable [ 81.004] (EE) AIGLX: reverting to software rendering [ 81.018] (II) IGLX: enabled GLX_MESA_copy_sub_buffer [ 81.019] (II) IGLX: Loaded and initialized swrast [ 81.019] (II) GLX: Initialized DRISWRAST GL provider for screen 0 [ 82.582] (II) modeset(G0): Damage tracking initialized [ 82.582] (EE) [ 82.582] (EE) Backtrace: [ 82.582] (EE) 0: /usr/bin/X (xorg_backtrace+0x65) [0x5561c76f9515] [ 82.582] (EE) 1: /usr/bin/X (0x5561c7544000+0x1b92c9) [0x5561c76fd2c9] [ 82.582] (EE) 2: /lib64/libpthread.so.0 (0x7f90df4db000+0x122e0) [0x7f90df4ed2e0] [ 82.582] (EE) 3: /usr/bin/X (RRSetChanged+0x4c) [0x5561c765603c] [ 82.582] (EE) 4: /usr/bin/X (RRScreenSetSizeRange+0x5f) [0x5561c765ab4f] [ 82.582] (EE) 5: /usr/bin/X (xf86RandR12CreateScreenResources+0x2f3) [0x5561c76187f3] [ 82.582] (EE) 6: /usr/bin/X (0x5561c7544000+0xc7490) [0x5561c760b490] [ 82.582] (EE) 7: /usr/bin/X (0x5561c7544000+0x580c1) [0x5561c759c0c1] [ 82.582] (EE) 8: /lib64/libc.so.6 (__libc_start_main+0xea) [0x7f90df141f4a] [ 82.582] (EE) 9: /usr/bin/X (_start+0x2a) [0x5561c7585f1a] [ 82.582] (EE) [ 82.582] (EE) Segmentation fault at address 0xb8 [ 82.582] (EE) Fatal server error: [ 82.582] (EE) Caught signal 11 (Segmentation fault). Server aborting [ 82.582] (EE) [ 82.582] (EE) Please consult the The X.Org Foundation support at http://wiki.x.org for help. [ 82.583] (EE) Please also check the log file at "/var/log/Xorg.0.log" for additional information. [ 82.583] (EE) [ 83.056] (EE) Server terminated with error (1). Closing log file. (for complete log file see attachement "Xorg.0.log") Hardware: ========= LG 3840x2160 IPS-display NVIDIA GeForce GTX 1060 graphics card Intel HD Graphics 630 In UEFI for the graphic-cards either "DISCRET" or "MSHYBRID" can be selected. How to reproduce: ================= Use Suse studio Imagewriter to put openSUSE-Leap-15.0-DVD-x86_64-Build191.1-Media.iso on an USB-Stick. Set graphic-cards-option in UEFI to "MSHYBRID". Boot from USB-Stick with kernel parameters "acpi_os_name="Linux" nouveau.modeset=0 3" and install with DE=KDE and "/" and "/home" formatted with "ext4". Reboot with same kernel parameters as above and do # nmtui (to get a WLAN connection) # zypper dup (to receive latest updates) # zypper in terminus-bitmap-fonts (to get a font that can be read on 4K display) # setfont ter-132b # echo "FONT=ter-132b" >>/etc/vconsole.conf # zypper in bumblebee VirtualGL-devel dkms # vi /etc/modprobe.d/50-blacklist.conf (to add "blacklist nouveau") # usermod -a -G bumblebee,video username # systemctl enable bumblebeed # systemctl start bumblebeed # systemctl enable dkms # systemctl start dkms # dracut -f # init 6 Result: ======= System starts booting but somewhere the bootprocess stopps, the screen starts flashing (on/off) and the only way out of this situation is to repeatedly press "Ctrl+Alt+Del" until the machine starts rebooting. Expected result: ================ The system boots into graphic mode. -- You are receiving this mail because: You are on the CC list for the bug.