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@maedoc
Last active November 14, 2018 09:18
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On the Dell Lattitude 5290 i5-8350U w/ Ubuntu 16.04

Notes on the Dell Lattitude 5290

I recently got a new work machine, the Lattitude 5290, for dev work with PyCharm, Docker, some VMs, some data analysis.

  • 12.5" 1366x768
    • personally I dislike programming on retina screens
    • a priori better battery life
  • i5 8350U 4C/8T TDP turbo up to 3.6 Ghz (on all four cores!)
  • 32 GB DDR4
  • 512 GB nvme
  • 66 Wh battery
  • all devices appear to work out of the box
  • suspend/resume is as fast as my MacBook Pro
  • VGA, GbE, 2xUSB3 (one charges when laptop is off), DP over USB-C, HDMI, SD card, SIM card

Power usage

With powerstat it appears to use

  • 2W when idle
  • 5W Firefox + Terminal
  • 6W PyCharm w/o battery mode
  • 30W during minikube start --vm-driver=kvm2
  • 40W running a PyTorch script

There's a builtin app for tracking battery stats over time, including accuracy of estimates of time remaining.

Benchmarks

Not complete obviously, but

  • scimark reports combined score of 2400 (~2x my x220 w/ an i7-2620M)

Like

  • keyboard has satisfying movement (unlike new macbookbook derpboards)
  • keyboard is backlit

Like less

  • can't use two external displays simultaneously?
  • trackpad is just ok but I use keyboard for most stuff anyway

Updates

After one week uptime

  • updates in place w/o reboot
  • multiple external screens working fine, automatically used
    • may need to plug in HDMI before DP-over-USB-C?
      • was a badly seated DVI to HDMI adapter, can plug monitors in, in any order
    • Firefox's renderer (or compiz? but its only Firefox that does this) sometimes stops updating the windows after changing display configuration
  • burn in (load avg 12 for more than 24 hours) with some float heavy workloads ok
  • Firefox Dark Reader uses GPU and burns some extra battery
  • Caused a crash after plugging in monitors, was doodling in PyCharm (which had been open for a week)
    • Snap had done an in-place update of PyCharm?
    • kind of annoying until I think that
      • Win 10 would have rebooted w/o asking to install useless updates
      • macOS would have pestered me with update request every day
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