Just seen several times: When I open a dialog window in LibreOffice Calc (for example, in order to save a table as .csv or after right-click and then choosing "Format Cells"), the window flickers and then Ubuntu crashes, going back to "Scanning for btrfs file system", and then the Ubuntu login appears.
Here is the dmesg output:
[39325.939024] [drm] stuck on render ring
[39325.940137] [drm] GPU HANG: ecode 7:0:0x87d77c3e, in Xorg [21731], reason: Ring hung, action: reset
[39325.942658] drm/i915: Resetting chip after gpu hang
[39333.938858] [drm] stuck on render ring
[39333.939977] [drm] GPU HANG: ecode 7:0:0x85dffffc, in Xorg [21731], reason: Ring hung, action: reset
[39333.943197] drm/i915: Resetting chip after gpu hang
It's curious that this error only occurs with LibreOffice, and only after upgrading from 15.10 to 16.04 LTS.
Edit 1: My machine:
description: Computer
width: 64 bits
capabilities: smbios-2.7 vsyscall32
*-core
description: Motherboard
physical id: 0
*-memory
description: System memory
physical id: 0
size: 7709MiB
*-cpu
product: Intel(R) Celeron(R) 2955U @ 1.40GHz
vendor: Intel Corp.
physical id: 1
bus info: cpu@0
size: 1400MHz
capacity: 1400MHz
width: 64 bits
capabilities: 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 pdpe1gb rdtscp x86-64 constant_tsc arch_perfmon pebs bts rep_good nopl xtopology nonstop_tsc aperfmperf eagerfpu pni pclmulqdq dtes64 monitor ds_cpl vmx est tm2 ssse3 sdbg cx16 xtpr pdcm pcid sse4_1 sse4_2 movbe popcnt tsc_deadline_timer xsave rdrand lahf_lm abm epb tpr_shadow vnmi flexpriority ept vpid fsgsbase tsc_adjust erms invpcid xsaveopt dtherm arat pln pts cpufreq
*-pci
description: Host bridge
product: Haswell-ULT DRAM Controller
vendor: Intel Corporation
physical id: 100
bus info: pci@0000:00:00.0
version: 0b
width: 32 bits
clock: 33MHz
configuration: driver=hsw_uncore
resources: irq:0
*-display
description: VGA compatible controller
product: Haswell-ULT Integrated Graphics Controller
vendor: Intel Corporation
physical id: 2
bus info: pci@0000:00:02.0
version: 0b
width: 64 bits
clock: 33MHz
capabilities: msi pm vga_controller bus_master cap_list rom
configuration: driver=i915 latency=0
Edit 2: No crashes lately, but the display is still weird.
Edit 3: I installed xserver-xorg-video-intel
and later mesa-utils
, and both do not change the appearance of LibreOffice.
I just did a clean re-install of 16.04, and the problem doesn't occur anymore. I battled with Libreoffice when it ran on 16.04, upgraded from 15.10 by
do-release-upgrade -d
.It seems the upgrade wasn't that clean...
Whether it's Impaled Impala 8.10 or another release, IMHO one should rather do a backup of all important directories and then a clean re-install instead of upgrading Ubuntu.