[Bug 94822] System hangs when some video output is disabled/enabled on Skylake platform in double/triple display configuration

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=94822

--- Comment #9 from Edgar Cherkasov <echerkasov at dev.rtsoft.ru> ---
(In reply to dog from comment #8)
> Intel OTC graphics driver QA performed tests using eDP+HDMI on 3 different
> SKL platforms… (a production one, SKL-y and SKL-H)
> 
> In all three configurations, the bug was not reproducible using latest
> kernel and graphics stack (The platform never hung)
> 
> Next QA test is to connect two displays on the platform (+eDP that makes 3
> pipes), unfortunately the platforms QA has available have only 2 pipes
> available , eDP+HDMI. Testing will be done later ths week on a
> non-production platform with 3 pipes in order to test this as described in
> the bug.
> 
> Note that the bug report is focused on Fedora 22, a distro that is a year
> old.

Thank you for the information !

I tried to boot Fedora 22 with 4.0.4-301.fc22 kernel with enabled preliminary
hw support, as result system hangs then booting. Second I boot system without
preliminary hw support and run i915 manually. As result - system hangs then
i915 loads.

Best regards,
Edgar Cherkasov.

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