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I just did a fresh first-time install of Ubuntu on a Dell Inspirion 14
with no modifications apart from installing Canon printer drivers and no
3rd party peripherals. The desktop freezes spontaneously. When it
freezes, the display freezes including the mouse pointer, and all
keystrokes are unresponsive (can't even do ctrl-alt-F3 to get a tty).
Forced power off is the only possible action.
I think this is irrelevent, but I'll mention that (I think) the lockup
only happens when I'm using VLC to play MythTV-served videos from the
LAN. Nothing else is running.. not even a browser. I'm simply watching
a video and out of the blue it hangs. After rebooting, I play the same
video I was watching just before the hang, and finish watching without a
freeze up. Which means there's no relation to the video data.
$ inxi -Fxz
System: Kernel: 5.4.0-42-generic x86_64 bits: 64 compiler: gcc v: 9.3.0
Desktop: Gnome 3.36.3
Distro: Ubuntu 20.04.1 LTS (Focal Fossa)
Machine: Type: Portable System: Dell product: Inspiron 14-3452 v: 4.0.7
serial: <filter>
Mobo: Dell model: 0625M8 v: A00 serial: <filter> UEFI: Dell v: 4.0.7
date: 04/26/2016
Battery: ID-1: BAT0 charge: 33.6 Wh condition: 33.6/41.4 Wh (81%) model:
Samsung SD DELL 07G075A status: Full
CPU: Topology: Dual Core model: Intel Celeron N3050 bits: 64 type: MCP
arch: Airmont rev: 3 L2 cache: 1024 KiB
flags: lm nx pae sse sse2 sse3 sse4_1 sse4_2 ssse3 vmx bogomips:
6400
Speed: 1377 MHz min/max: 480/2160 MHz Core speeds (MHz): 1: 1034 2:
1139
Graphics: Device-1: Intel Atom/Celeron/Pentium Processor x5-E8000/J3xxx/N3xxx
Integrated Graphics vendor: Dell driver: i915
v: kernel bus ID: 00:02.0
Display: server: X.Org 1.19.2 driver: i915 resolution: 1280x800~60Hz
OpenGL: renderer: llvmpipe (LLVM 10.0.0 128 bits) v: 3.3 Mesa 20.0.8
direct render: Yes
Audio: Device-1: Intel Atom/Celeron/Pentium Processor x5-E8000/J3xxx/N3xxx
Series High Definition Audio vendor: Dell
driver: snd_hda_intel v: kernel bus ID: 00:1b.0
Sound Server: ALSA v: k5.4.0-42-generic
Network: Device-1: Realtek RTL8723BE PCIe Wireless Network Adapter driver:
rtl8723be v: kernel port: e000 bus ID: 01:00.0
IF: wlp1s0 state: up mac: <filter>
Drives: Local Storage: total: 29.12 GiB used: 8.75 GiB (30.0%)
ID-1: /dev/mmcblk0 model: HBG4e size: 29.12 GiB
Partition: ID-1: / size: 28.05 GiB used: 8.74 GiB (31.2%) fs: ext4 dev:
/dev/mmcblk0p2
Sensors: System Temperatures: cpu: 52.0 C mobo: 47.0 C
Fan Speeds (RPM): cpu: 3181
Info: Processes: 199 Uptime: 41m Memory: 1.85 GiB used: 891.8 MiB (46.9%)
Init: systemd runlevel: 5 Compilers: gcc: N/A
Shell: bash v: 5.0.17 inxi: 3.0.38
** Affects: mesa (Ubuntu)
Importance: Undecided
Status: Incomplete
** Tags: bot-comment focal
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Ubuntu Focal Fossa freezes spontaneously -- must power off when this happens
https://bugs.launchpad.net/bugs/1889992
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