[Bug 92464] 8086:0f31_freezes_totally

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=92464

--- Comment #9 from gfl3162+xbugzilla at gmail.com ---
I am having the same issue on an Asus X205TA laptop with the Intel Atom Z3735F
SOC and the same graphics hardware (8086:0f31).

A few more observations (on a vanilla 4.3 kernel, with compositor enabled):

- Setting the sysctl kernel.nmi_watchdog to enable to NMI watchdog does not
detect the lockup.
- It appears that the kernel is completely locked up. I have a USB sound card
that lights up when enumerated by the kernel, but that does not occur when the
freeze occurs. As such, trying to SSH into the system does not work, and system
logs do not show any traces. Setting kernel.panic and kernel.panic_on_oops also
does not automatically reboot the system, suggesting that neither a panic nor
an oops occurs when the freeze occurs.
- While in console mode (Ctrl-Alt-F1), the screen flickers every now and then.
Not sure if related.
- The freeze occurs when using the "intel" and "modeset" xorg drivers.
Interestingly enough, the freeze is /completely/ mitigated when using the
"fbdev" video driver. Performance is not optimal, but I have been using it as a
workaround.

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