[Bug 1656155] Re: System (keyboard & touchpad) freezes

[Jeffry R. Fisher]

FindRightPackage suggests "kernel DRM driver (linux package)". Since
similar bug reports seem to be clustering on Intel CPUs that have on-
board GPUs, I can only guess that it means the Intel-specific libdrm.
However, I wonder about the i965-va-driver on my Kabylake i5-7200u.

** Package changed: ubuntu => libdrm (Ubuntu)

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Title:
  System (keyboard & touchpad) freezes

Status in libdrm package in Ubuntu:
  New

Bug description:
  I have a 1-month old Acer Aspire F5-573-58VX that came with Win-10
  installed. It relies on its Intel i5-7200u for its graphics (HD 620).
  It runs Win-10 with no problems (other than Win-10 itself), so I do
  not suspect the hardware.

  I succeeded in dual-booting Ubuntu 16.04 with EFI and secure-boot both
  enabled, but was suffering random freezes at 3-30 minutes of use, even
  after setting the c-state limit in grub. It hangs both with and
  without Intel microcode. So I upgraded to 16.10 hoping that a newer
  kernel would have a fix in it.

  It's still freezing at random (many apps, and sometimes using only the
  desktop controls). It still has the c-state parameter in grub.

  It appears that if I leave the system untouched with the cursor in an
  empty area, then no freeze will occur (I can see display changing) as
  long as I don't touch anything. Bittorrent runs reliably overnight,
  and then the machine can freeze within seconds of my moving the cursor
  to a control in the morning.

  Thunderbird is also suspicious: I can work most of an hour OK as long
  as I never move the cursor over the scroll slider in the folder pane.
  However, bringing the cursor close enough to change the slider's
  appearance will usually freeze the machine. Update: I've now
  experienced a freeze while the cursor was stationary and I was merely
  typing into an email message window.

  When it freezes, the machine goes quiet (it's not spinning). There's
  no message to the GUI, only a sudden halt. When frozen, soft restart
  and reboot (ctrl-alt-back & ctrl-alt-del) both fail. Only a forced
  power-off has had any effect. (I'll try your alt+sysreq combos in my
  next freeze).

  Synaptic says I have an intel driver update utility installed, but I
  don't know if it has run. When I try to sudo it, I am told that the
  command is not found. I have been unable to locate it in the file
  system. If anyone knows where that goes (or where to hunt), that might
  be helpful.

  I do not (yet) know how to ssh into the sick machine to get kernel
  logs or crash dumps. I'm a user-space programmer, not a sysadmin, so I
  have a learning curve to open the firewall enough to allow an
  intrusion, and more learning curves for the cryptic debugging tools.

  There's one suspicious line in the boot log: "drm:parse_csr_fw
  [i915_bpo]] ERROR Unknown stepping info, firmware loading failed". I
  wonder if that's related to the driver for Intel chip's embedded
  graphics.

  My current work-around is to do as much work as possible in Win-10  :(

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