X crashing randomly in lubuntu

[xavier16]

I'm having a problem with the X session crashing randomly in lubuntu. I can't reproduce this on demand, but about once a day the screen goes completely black. When this happens, if I press keys on the keyboard it displays keyboard output. If I press ctrl-alt-f1 I can get into a text based console.

I have looked through the logs in /var/log but haven't been able to find the cause. Are there more logs I need to look through? Any ideas on how to troubleshoot/fix this? Below are the specs. Thanks!

-lubuntu 14.04.1 64-bit LTS
-OpenBox 3.5.2
-LXDE

[mörgæs]

Hi, welcome to the fora.

We need to know more of the hardware. Please run
sudo lshw -sanitize > lshw.txt and post lshw.txt in CODE tags.

[xavier16]

Hi, welcome to the fora.

We need to know more of the hardware. Please run
sudo lshw -sanitize > lshw.txt and post lshw.txt in CODE tags.

Here's the output:



computer
description: Notebook
product: HP EliteBook Folio 9470m (E1Y37UT#ABA)
vendor: Hewlett-Packard
version: A1029D1103
serial: [REMOVED]
width: 64 bits
capabilities: smbios-2.7 dmi-2.7 vsyscall32
configuration: boot=normal chassis=notebook family=103C_5336AN G=N L=BUS B=HP S=ELI sku=E1Y37UT#ABA uuid=[REMOVED]
*-core
description: Motherboard
product: 18DF
vendor: Hewlett-Packard
physical id: 0
version: KBC Version 62.19
serial: [REMOVED]
*-firmware
description: BIOS
vendor: Hewlett-Packard
physical id: e
version: 68IBD Ver. F.61
date: 04/08/2015
size: 64KiB
capacity: 5056KiB
capabilities: pci pcmcia upgrade shadowing cdboot bootselect edd int5printscreen int9keyboard int14serial int17printer acpi usb smartbattery biosbootspecification netboot uefi
*-cpu
description: CPU
product: Intel(R) Core(TM) i5-3337U CPU @ 1.80GHz
vendor: Intel Corp.
physical id: 0
bus info: cpu@0
version: Intel(R) Core(TM) i5-3337U CPU @ 1.80GHz
serial: [REMOVED]
slot: U3E1
size: 1054MHz
capacity: 4GHz
width: 64 bits
clock: 100MHz
capabilities: x86-64 fpu fpu_exception wp vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe syscall nx rdtscp constant_tsc arch_perfmon pebs bts rep_good nopl xtopology nonstop_tsc aperfmperf eagerfpu pni pclmulqdq dtes64 monitor ds_cpl vmx est tm2 ssse3 cx16 xtpr pdcm pcid sse4_1 sse4_2 x2apic popcnt tsc_deadline_timer aes xsave avx f16c rdrand lahf_lm ida arat epb pln pts dtherm tpr_shadow vnmi flexpriority ept vpid fsgsbase smep erms xsaveopt cpufreq
configuration: cores=2 enabledcores=2 threads=4
*-cache:0
description: L1 cache
physical id: 2
slot: Unknown
size: 32KiB
capacity: 32KiB
capabilities: internal write-through instruction
*-cache:1
description: L2 cache
physical id: 3
slot: Unknown
size: 256KiB
capacity: 256KiB
capabilities: internal write-through unified
*-cache:2
description: L3 cache
physical id: 4
slot: Unknown
size: 3MiB
capacity: 3MiB
capabilities: internal write-back unified
*-cache
description: L1 cache
physical id: 1
slot: Unknown
size: 32KiB
capacity: 32KiB
capabilities: internal write-through data
*-memory
description: System Memory
physical id: 5
slot: System board or motherboard
size: 8GiB
*-bank:0
description: SODIMM DDR3 Synchronous 1600 MHz (0.6 ns)
product: AM1L16BC4R1-B1GS
vendor: ADATA
physical id: 0
serial: [REMOVED]
slot: Bottom-Slot 1(top)
size: 4GiB
width: 64 bits
clock: 1600MHz (0.6ns)
*-bank:1
description: SODIMM DDR3 Synchronous 1600 MHz (0.6 ns)
product: AM1L16BC4R1-B1GS
vendor: ADATA
physical id: 1
serial: [REMOVED]
slot: Bottom-Slot 2(under)
size: 4GiB
width: 64 bits
clock: 1600MHz (0.6ns)
*-pci
description: Host bridge
product: 3rd Gen Core processor DRAM Controller
vendor: Intel Corporation
physical id: 100
bus info: pci@0000:00:00.0
version: 09
width: 32 bits
clock: 33MHz
configuration: driver=ivb_uncore
resources: irq:0
*-display
description: VGA compatible controller
product: 3rd Gen Core processor Graphics Controller
vendor: Intel Corporation
physical id: 2
bus info: pci@0000:00:02.0
version: 09
width: 64 bits
clock: 33MHz
capabilities: msi pm vga_controller bus_master cap_list rom
configuration: driver=i915 latency=0
resources: irq:30 memory:d0000000-d03fffff memory:c0000000-cfffffff ioport:2000(size=64)
*-usb:0
description: USB controller
product: 7 Series/C210 Series Chipset Family USB xHCI Host Controller
vendor: Intel Corporation
physical id: 14
bus info: pci@0000:00:14.0
version: 04
width: 64 bits
clock: 33MHz
capabilities: pm msi xhci bus_master cap_list
configuration: driver=xhci_hcd latency=0
resources: irq:27 memory:d0720000-d072ffff
*-communication
description: Communication controller
product: 7 Series/C210 Series Chipset Family MEI Controller #1
vendor: Intel Corporation
physical id: 16
bus info: pci@0000:00:16.0
version: 04
width: 64 bits
clock: 33MHz
capabilities: pm msi bus_master cap_list
configuration: driver=mei_me latency=0
resources: irq:31 memory:d0735000-d073500f
*-network
description: Ethernet interface
product: 82579LM Gigabit Network Connection
vendor: Intel Corporation
physical id: 19
bus info: pci@0000:00:19.0
logical name: eth0
version: 04
serial: [REMOVED]
capacity: 1Gbit/s
width: 32 bits
clock: 33MHz
capabilities: pm msi bus_master cap_list ethernet physical tp 10bt 10bt-fd 100bt 100bt-fd 1000bt-fd autonegotiation
configuration: autonegotiation=on broadcast=yes driver=e1000e driverversion=3.2.5-k firmware=0.15-4 latency=0 link=no multicast=yes port=twisted pair
resources: irq:28 memory:d0700000-d071ffff memory:d073b000-d073bfff ioport:2080(size=32)
*-usb:1
description: USB controller
product: 7 Series/C210 Series Chipset Family USB Enhanced Host Controller #2
vendor: Intel Corporation
physical id: 1a
bus info: pci@0000:00:1a.0
version: 04
width: 32 bits
clock: 33MHz
capabilities: pm debug ehci bus_master cap_list
configuration: driver=ehci-pci latency=0
resources: irq:16 memory:d073a000-d073a3ff
*-multimedia
description: Audio device
product: 7 Series/C210 Series Chipset Family High Definition Audio Controller
vendor: Intel Corporation
physical id: 1b
bus info: pci@0000:00:1b.0
version: 04
width: 64 bits
clock: 33MHz
capabilities: pm msi pciexpress bus_master cap_list
configuration: driver=snd_hda_intel latency=0
resources: irq:33 memory:d0730000-d0733fff
*-pci:0
description: PCI bridge
product: 7 Series/C210 Series Chipset Family PCI Express Root Port 1
vendor: Intel Corporation
physical id: 1c
bus info: pci@0000:00:1c.0
version: c4
width: 32 bits
clock: 33MHz
capabilities: pci pciexpress msi pm normal_decode bus_master cap_list
configuration: driver=pcieport
resources: irq:24 memory:d0600000-d06fffff
*-pci:1
description: PCI bridge
product: 7 Series/C210 Series Chipset Family PCI Express Root Port 3
vendor: Intel Corporation
physical id: 1c.2
bus info: pci@0000:00:1c.2
version: c4
width: 32 bits
clock: 33MHz
capabilities: pci pciexpress msi pm normal_decode bus_master cap_list
configuration: driver=pcieport
resources: irq:25 memory:d0500000-d05fffff
*-generic:0
description: System peripheral
product: SD/MMC Host Controller
vendor: JMicron Technology Corp.
physical id: 0
bus info: pci@0000:02:00.0
version: 30
width: 32 bits
clock: 33MHz
capabilities: pm pciexpress msi bus_master cap_list rom
configuration: driver=sdhci-pci latency=0
resources: irq:18 memory:d0503000-d05030ff memory:d0510000-d051ffff
*-generic:1 UNCLAIMED
description: SD Host controller
product: Standard SD Host Controller
vendor: JMicron Technology Corp.
physical id: 0.2
bus info: pci@0000:02:00.2
version: 30
width: 32 bits
clock: 33MHz
capabilities: pm pciexpress msi cap_list
configuration: latency=0
resources: memory:d0502000-d05020ff
*-pci:2
description: PCI bridge
product: 7 Series/C210 Series Chipset Family PCI Express Root Port 4
vendor: Intel Corporation
physical id: 1c.3
bus info: pci@0000:00:1c.3
version: c4
width: 32 bits
clock: 33MHz
capabilities: pci pciexpress msi pm normal_decode bus_master cap_list
configuration: driver=pcieport
resources: irq:26 memory:d0400000-d04fffff
*-network
description: Wireless interface
product: Centrino Advanced-N 6235
vendor: Intel Corporation
physical id: 0
bus info: pci@0000:03:00.0
logical name: wlan0
version: 24
serial: [REMOVED]
width: 64 bits
clock: 33MHz
capabilities: pm msi pciexpress bus_master cap_list ethernet physical wireless
configuration: broadcast=yes driver=iwlwifi driverversion=4.2.0-34-generic firmware=18.168.6.1 ip=[REMOVED] latency=0 link=yes multicast=yes wireless=IEEE 802.11abgn
resources: irq:32 memory:d0400000-d0401fff
*-usb:2
description: USB controller
product: 7 Series/C210 Series Chipset Family USB Enhanced Host Controller #1
vendor: Intel Corporation
physical id: 1d
bus info: pci@0000:00:1d.0
version: 04
width: 32 bits
clock: 33MHz
capabilities: pm debug ehci bus_master cap_list
configuration: driver=ehci-pci latency=0
resources: irq:16 memory:d0739000-d07393ff
*-isa
description: ISA bridge
product: QM77 Express Chipset LPC Controller
vendor: Intel Corporation
physical id: 1f
bus info: pci@0000:00:1f.0
version: 04
width: 32 bits
clock: 33MHz
capabilities: isa bus_master cap_list
configuration: driver=lpc_ich latency=0
resources: irq:0
*-storage
description: SATA controller
product: 7 Series Chipset Family 6-port SATA Controller [AHCI mode]
vendor: Intel Corporation
physical id: 1f.2
bus info: pci@0000:00:1f.2
version: 04
width: 32 bits
clock: 66MHz
capabilities: storage msi pm ahci_1.0 bus_master cap_list
configuration: driver=ahci latency=0
resources: irq:29 ioport:20a8(size=8) ioport:20b4(size=4) ioport:20a0(size=8) ioport:20b0(size=4) ioport:2060(size=32) memory:d0738000-d07387ff
*-serial UNCLAIMED
description: SMBus
product: 7 Series/C210 Series Chipset Family SMBus Controller
vendor: Intel Corporation
physical id: 1f.3
bus info: pci@0000:00:1f.3
version: 04
width: 64 bits
clock: 33MHz
configuration: latency=0
resources: memory:d0734000-d07340ff ioport:ef80(size=32)
*-scsi:0
physical id: 2
logical name: scsi1
capabilities: emulated
*-disk
description: ATA Disk
product: HGST HTS725050A7
physical id: 0.0.0
bus info: scsi@1:0.0.0
logical name: /dev/sda
version: A440
serial: [REMOVED]
size: 465GiB (500GB)
capabilities: partitioned partitioned:dos
configuration: ansiversion=5 sectorsize=4096 signature=0000a400
*-volume:0
description: Linux filesystem partition
vendor: Linux
physical id: 1
bus info: scsi@1:0.0.0,1
logical name: /dev/sda1
logical name: /boot
version: 1.0
serial: [REMOVED]
size: 243MiB
capacity: 243MiB
capabilities: primary bootable extended_attributes ext2 initialized
configuration: filesystem=ext2 lastmountpoint=/boot modified=2016-03-29 00:19:05 mount.fstype=ext2 mount.options=rw,relatime,stripe=4 mounted=2016-03-29 00:19:05 state=mounted
*-volume:1
description: Extended partition
physical id: 2
bus info: scsi@1:0.0.0,2
logical name: /dev/sda2
size: 465GiB
capacity: 465GiB
capabilities: primary extended partitioned partitioned:extended
*-logicalvolume
description: Linux filesystem partition
physical id: 5
logical name: /dev/sda5
capacity: 465GiB
*-scsi:1
physical id: 3
logical name: scsi2
capabilities: emulated
*-disk
description: ATA Disk
product: LITEONIT LMS-32L
physical id: 0.0.0
bus info: scsi@2:0.0.0
logical name: /dev/sdb
version: 707
serial: [REMOVED]
size: 29GiB (32GB)
capabilities: partitioned partitioned:dos
configuration: ansiversion=5 sectorsize=512 signature=a89c158a
*-volume
description: OS/2 hidden C: drive partition
physical id: 1
bus info: scsi@2:0.0.0,1
logical name: /dev/sdb1
capacity: 11GiB
capabilities: primary hidden
*-battery
product: BT04052
vendor: 33-17
physical id: 1
slot: Primary
capacity: 52540mWh
configuration: voltage=14.8V

[mörgæs]

This might help:
http://ubuntuforums.org/showthread.php?t=2317790

[xavier16]

This might help:
http://ubuntuforums.org/showthread.php?t=2317790

This seems like a plausible solution to go with 15.10. I'll have to do a fresh install, correct?

[xavier16]

Okay looks like since I am on LTS I will have to do a fresh install. :cry: I'll let you know how it turns out.

[xavier16]

I upgraded to 15.10 and it definitely seemed more stable overall and faster. The issue of the screen going completely black didn't come up for about 3-4 days and I was just beginning to rejoice, when it started up again. Can you suggest something in particular to look for in the logs and which logs would be the most relevant for this particular issue?

[mörgæs]

Good to hear.

I wouldn't begin searching in log files yet. You could try the daily build of 16.04, for example in a live boot, to see if it's even more stable than 15.10.