Package: xserver-xorg-core Version: 2:1.19.6-1 After update from 2:1.19.5-1 crashes with
(EE) Backtrace: (EE) 0: /usr/lib/xorg/Xorg (xorg_backtrace+0x4d) [0x555939ea4e3d] (EE) 1: /usr/lib/xorg/Xorg (0x555939ced000+0x1bbbd9) [0x555939ea8bd9] (EE) 2: /lib/x86_64-linux-gnu/libpthread.so.0 (0x7f3fc30fa000+0x12180) [0x7f3fc310c180] (EE) 3: /lib/x86_64-linux-gnu/libc.so.6 (gsignal+0x110) [0x7f3fc2d786a0] (EE) 4: /lib/x86_64-linux-gnu/libc.so.6 (abort+0x1c7) [0x7f3fc2d79cf7] (EE) 5: /lib/x86_64-linux-gnu/libc.so.6 (0x7f3fc2d44000+0x76f87) [0x7f3fc2dbaf87] (EE) 6: /lib/x86_64-linux-gnu/libc.so.6 (0x7f3fc2d44000+0x7d27a) [0x7f3fc2dc127a] (EE) 7: /lib/x86_64-linux-gnu/libc.so.6 (0x7f3fc2d44000+0x7efdc) [0x7f3fc2dc2fdc] (EE) 8: /usr/lib/xorg/Xorg (PanoramiXCreateConnectionBlock+0x22d) [0x555939deaeed] (EE) 9: /usr/lib/xorg/Xorg (0x555939ced000+0x56d79) [0x555939d43d79] (EE) 10: /lib/x86_64-linux-gnu/libc.so.6 (__libc_start_main+0xea) [0x7f3fc2d64f2a] (EE) 11: /usr/lib/xorg/Xorg (_start+0x2a) [0x555939d2da3a] (EE) (EE) error: (EE) Caught signal 6 (Aborted). Server aborting Note that this did not crash in 1.19.5-1 and compiling this tag from debian xorg git makes the X11 work again, so something changed between those two revisions -- 1.19.5-1 and 1.19.6-1 . I use Xinerama though, which did trigger bugs in the past, xorg.conf below: Section "ServerLayout" Identifier "Layout0" Option "Xinerama" "on" Option "Clone" "off" Screen 0 "Screen0" Screen 1 "Screen1" RightOf "Screen0" Screen 2 "Screen2" LeftOf "Screen3" Screen 3 "Screen3" LeftOf "Screen0" EndSection Section "Device" Identifier "Device0" Driver "nouveau" BusID "PCI:5:0:0" Option "ZaphodHeads" "DP-1" Screen 0 EndSection Section "Device" Identifier "Device1" Driver "nouveau" BusID "PCI:5:0:0" Option "ZaphodHeads" "DP-2" Screen 1 EndSection Section "Device" Identifier "Device2" Driver "nouveau" BusID "PCI:6:0:0" Option "ZaphodHeads" "DP-3" Screen 0 EndSection Section "Device" Identifier "Device3" Driver "nouveau" BusID "PCI:6:0:0" Option "ZaphodHeads" "DP-4" Screen 1 EndSection Section "Screen" Identifier "Screen0" Device "Device0" Monitor "Monitor0" DefaultDepth 24 Option "Rotate" "left" SubSection "Display" Modes "2560x1440" Depth 24 EndSubSection EndSection Section "Screen" Identifier "Screen1" Device "Device1" Monitor "Monitor1" DefaultDepth 24 Option "Rotate" "left" SubSection "Display" Modes "2560x1440" Depth 24 EndSubSection EndSection Section "Screen" Identifier "Screen2" Device "Device2" Monitor "Monitor2" DefaultDepth 24 Option "Rotate" "left" SubSection "Display" Modes "2560x1440" Depth 24 EndSubSection EndSection Section "Screen" Identifier "Screen3" Device "Device3" Monitor "Monitor3" DefaultDepth 24 Option "Rotate" "left" SubSection "Display" Modes "2560x1440" Depth 24 EndSubSection EndSection Section "Monitor" Identifier "Monitor0" Option "Rotate" "left" EndSection Section "Monitor" Identifier "Monitor1" Option "Rotate" "left" EndSection Section "Monitor" Identifier "Monitor2" Option "Rotate" "left" EndSection Section "Monitor" Identifier "Monitor3" Option "Rotate" "left" EndSection -- Best regards, Marek Vasut