linux-kernel - Re: [Intel-gfx] screen freeze with 5.2-rc6 Dell XPS-13 skylake i915

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Message-ID: <a10f009fc160f05077760ff59cd86a9c99006b39.camel@intel.com>
Date:   Tue, 16 Jul 2019 16:32:58 +0000
From:   "Souza, Jose" <jose.souza@...el.com>
To:     "pebolle@...cali.nl" <pebolle@...cali.nl>,
        "James.Bottomley@...senPartnership.com" 
        <James.Bottomley@...senPartnership.com>,
        "intel-gfx@...ts.freedesktop.org" <intel-gfx@...ts.freedesktop.org>,
        "chris@...is-wilson.co.uk" <chris@...is-wilson.co.uk>
CC:     "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: Re: [Intel-gfx] screen freeze with 5.2-rc6 Dell XPS-13 skylake i915

Thanks Paul

Paul and James could you test this final solution(at least for 5.2)?
Please revert the hack patch and apply this one.

Thanks


On Mon, 2019-07-15 at 23:34 +0200, Paul Bolle wrote:
> Hi Jose,
> 
> Souza, Jose schreef op ma 15-07-2019 om 21:03 [+0000]:
> > So the issue did not happened again with the patch applied?
> 
> Not in the three days that I've been running 5.2 kernels with the
> hack applied
> (so that should be about twelve hours of proper uptime).
> 
> > If you still have the kernel 5.1 installed could you share your
> > /sys/kernel/debug/dri/0/i915_edp_psr_status with the older kernel?
> > We want to check if training values changed between kernel
> > versions.
> 
> Sure. On 5.1.17 I get:
>     Sink support: yes [0x01]
>     PSR mode: PSR1 enabled
>     Source PSR ctl: enabled [0x81f00626]
>     Source PSR status: IDLE [0x040b0001]
>     Busy frontbuffer bits: 0x00000000
> 
> And, in case you need it, on 5.2.1+hack I get:
>     Sink support: yes [0x01]
>     PSR mode: PSR1 enabled
>     Source PSR ctl: enabled [0x81f00626]
>     Source PSR status: IDLE [0x04030006]
>     Busy frontbuffer bits: 0x00000000
> 
> Hope this helps,
> 
> 
> Paul
> 

View attachment "0001-Revert-drm-i915-vbt-Parse-and-use-the-new-field-with.patch" of type "text/x-patch" (3981 bytes)