KDE session ends suddenly and redirects to LightDM or we get a black screen, when press control+C on black screen it redirects to LightDM. Happens all the time with 1 Happens almost all the time with 2 Login lightDM in KDE session Either 1: open konsole and try to resize it Or 2: click twice on the Desktop widget on top right (or desktop icon in taskbar) Reproducible: Always Steps to Reproduce: 1. Login lightDM in KDE session 2. Open konsole and try to resize it 3. Actual Results: KDE crashes, session ends suddenly and redirects to LightDM Expected Results: Not crash whole session Got this debug trace from xorg log [ 46.687] (II) fglrx(0): Modeline "1400x1050"x0.0 101.00 1400 1448 1480 1560 1050 1053 1057 1080 +hsync -vsync (64.7 kHz e) [ 46.687] (II) fglrx(0): Modeline "1280x1024"x0.0 108.00 1280 1328 1440 1688 1024 1025 1028 1066 +hsync +vsync (64.0 kHz e) [ 46.687] (II) fglrx(0): Modeline "1280x800"x0.0 71.00 1280 1328 1360 1440 800 803 809 823 +hsync -vsync (49.3 kHz e) [ 136.686] (II) XKB: reuse xkmfile /var/lib/xkb/server-8C3648A5FD728529D869F46730BE1BC287DB231C.xkm [ 572.883] (EE) [ 572.883] (EE) Backtrace: [ 572.884] (EE) 0: /usr/bin/X (xorg_backtrace+0x36) [0x7f097bb184f6] [ 572.884] (EE) 1: /usr/bin/X (0x7f097b968000+0x1b4329) [0x7f097bb1c329] [ 572.884] (EE) 2: /lib/x86_64-linux-gnu/libpthread.so.0 (0x7f097aa58000+0xfcb0) [0x7f097aa67cb0] [ 572.884] (EE) 3: /usr/lib/x86_64-linux-gnu/libpixman-1.so.0 (0x7f097a5b0000+0x81dc0) [0x7f097a631dc0] [ 572.884] (EE) 4: /usr/lib/x86_64-linux-gnu/libpixman-1.so.0 (0x7f097a5b0000+0x508ab) [0x7f097a6008ab] [ 572.884] (EE) 5: /usr/lib/x86_64-linux-gnu/libpixman-1.so.0 (pixman_blt+0x52) [0x7f097a5bb1d2] [ 572.884] (EE) 6: /usr/lib/xorg/modules/libfb.so (fbCopyNtoN+0x343) [0x7f0976ea3b63] [ 572.884] (EE) 7: /usr/lib/x86_64-linux-gnu/xorg/extra-modules/modules/glesx.so (0x7f0973480000+0x83711) [0x7f0973503711] [ 572.884] (EE) 8: /usr/lib/x86_64-linux-gnu/xorg/extra-modules/modules/glesx.so (0x7f0973480000+0x858ab) [0x7f09735058ab] [ 572.884] (EE) 9: /usr/bin/X (0x7f097b968000+0x139ec9) [0x7f097baa1ec9] [ 572.884] (EE) 10: /usr/bin/X (0x7f097b968000+0xe87b5) [0x7f097ba507b5] [ 572.884] (EE) 11: /usr/bin/X (0x7f097b968000+0xe95d6) [0x7f097ba515d6] [ 572.884] (EE) 12: /usr/bin/X (0x7f097b968000+0xe803c) [0x7f097ba5003c] [ 572.884] (EE) 13: /usr/bin/X (0x7f097b968000+0x81c66) [0x7f097b9e9c66] [ 572.884] (EE) 14: /usr/bin/X (MapWindow+0x1a2) [0x7f097b9eca02] [ 572.884] (EE) 15: /usr/bin/X (0x7f097b968000+0x532f0) [0x7f097b9bb2f0] [ 572.884] (EE) 16: /usr/bin/X (0x7f097b968000+0x58ab1) [0x7f097b9c0ab1] [ 572.884] (EE) 17: /usr/bin/X (0x7f097b968000+0x4752a) [0x7f097b9af52a] [ 572.884] (EE) 18: /lib/x86_64-linux-gnu/libc.so.6 (__libc_start_main+0xed) [0x7f09794a176d] [ 572.885] (EE) 19: /usr/bin/X (0x7f097b968000+0x47871) [0x7f097b9af871] [ 572.885] (EE) [ 572.885] (EE) Segmentation fault at address 0x7f0962b8df60 [ 572.885] Fatal server error: [ 572.885] Caught signal 11 (Segmentation fault). Server aborting [ 572.885] [ 572.885] (EE) Please consult the The X.Org Foundation support at http://wiki.x.org for help. [ 572.885] (EE) Please also check the log file at "/var/log/Xorg.0.log" for additional information. [ 572.885] (EE) System info :~$ uname -a Linux athena 3.7.0-7-generic #15-Ubuntu SMP Sat Dec 15 16:34:25 UTC 2012 x86_64 x86_64 x86_64 GNU/Linux :~$ lspci 00:00.0 Host bridge: Advanced Micro Devices [AMD] nee ATI RD890 PCI to PCI bridge (external gfx0 port B) (rev 02) 00:00.2 IOMMU: Advanced Micro Devices [AMD] nee ATI RD990 I/O Memory Management Unit (IOMMU) 00:02.0 PCI bridge: Advanced Micro Devices [AMD] nee ATI RD890 PCI to PCI bridge (PCI express gpp port B) 00:04.0 PCI bridge: Advanced Micro Devices [AMD] nee ATI RD890 PCI to PCI bridge (PCI express gpp port D) 00:07.0 PCI bridge: Advanced Micro Devices [AMD] nee ATI RD890 PCI to PCI bridge (PCI express gpp port G) 00:11.0 SATA controller: Advanced Micro Devices [AMD] nee ATI SB7x0/SB8x0/SB9x0 SATA Controller [AHCI mode] (rev 40) 00:12.0 USB controller: Advanced Micro Devices [AMD] nee ATI SB7x0/SB8x0/SB9x0 USB OHCI0 Controller 00:12.2 USB controller: Advanced Micro Devices [AMD] nee ATI SB7x0/SB8x0/SB9x0 USB EHCI Controller 00:13.0 USB controller: Advanced Micro Devices [AMD] nee ATI SB7x0/SB8x0/SB9x0 USB OHCI0 Controller 00:13.2 USB controller: Advanced Micro Devices [AMD] nee ATI SB7x0/SB8x0/SB9x0 USB EHCI Controller 00:14.0 SMBus: Advanced Micro Devices [AMD] nee ATI SBx00 SMBus Controller (rev 42) 00:14.2 Audio device: Advanced Micro Devices [AMD] nee ATI SBx00 Azalia (Intel HDA) (rev 40) 00:14.3 ISA bridge: Advanced Micro Devices [AMD] nee ATI SB7x0/SB8x0/SB9x0 LPC host controller (rev 40) 00:14.4 PCI bridge: Advanced Micro Devices [AMD] nee ATI SBx00 PCI to PCI Bridge (rev 40) 00:14.5 USB controller: Advanced Micro Devices [AMD] nee ATI SB7x0/SB8x0/SB9x0 USB OHCI2 Controller 00:16.0 USB controller: Advanced Micro Devices [AMD] nee ATI SB7x0/SB8x0/SB9x0 USB OHCI0 Controller 00:16.2 USB controller: Advanced Micro Devices [AMD] nee ATI SB7x0/SB8x0/SB9x0 USB EHCI Controller 00:18.0 Host bridge: Advanced Micro Devices [AMD] Family 15h Processor Function 0 00:18.1 Host bridge: Advanced Micro Devices [AMD] Family 15h Processor Function 1 00:18.2 Host bridge: Advanced Micro Devices [AMD] Family 15h Processor Function 2 00:18.3 Host bridge: Advanced Micro Devices [AMD] Family 15h Processor Function 3 00:18.4 Host bridge: Advanced Micro Devices [AMD] Family 15h Processor Function 4 00:18.5 Host bridge: Advanced Micro Devices [AMD] Family 15h Processor Function 5 01:00.0 VGA compatible controller: Advanced Micro Devices [AMD] nee ATI Cape Verde [Radeon HD 7700 Series] 01:00.1 Audio device: Advanced Micro Devices [AMD] nee ATI Device aab0 02:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL8111/8168B PCI Express Gigabit Ethernet controller (rev 06) 03:00.0 USB controller: ASMedia Technology Inc. ASM1042 SuperSpeed USB Host Controller :~$ cat /etc/lsb-release DISTRIB_ID=Ubuntu DISTRIB_RELEASE=12.10 DISTRIB_CODENAME=quantal DISTRIB_DESCRIPTION="Ubuntu 12.10"
The X server crashed, most probably because your video driver fail to handle ARGB windows Konsole uses. Please report this issue directly to X.org developers via https://bugs.freedesktop.org/
thanks they already have similar bug reported: https://bugs.freedesktop.org/show_bug.cgi?id=59695 (In reply to comment #1) > The X server crashed, most probably because your video driver fail to handle > ARGB windows Konsole uses. > > Please report this issue directly to X.org developers via > https://bugs.freedesktop.org/