USB-C

USB-C

[nnet]

Hello,

5.2.13 is working fine (great) still with a Dell U4919DW connected via USB-C from a X1 Carbon Gen 6.

5.3-rc8 so far is not (blank screen) and errors:

https://pastebin.com/tXFi6AfK

Seems there has been some refactoring for just this kind of connection in 5.3?

Is there perhaps and issue since for this scenario or are other components at fault perhaps (ACPI / mutter)?

Thanks!
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Re: USB-C

[nnet]

Searching on the kernel warnings and errors didn't bring it up, but in browsing bugzilla I stumbled on this.

Bug 111501 - [CFL] Kernel 5.3.0-rc6: i915 fails at typec_displayport 5120x1440 
https://bugs.freedesktop.org/show_bug.cgi?id=111501

It's the same monitor and connection type.

Is the related patchset intended for 5.3 then? 
https://patchwork.freedesktop.org/series/66286/

Thanks

On Mon, Sep 9, 2019, at 10:06 AM, nnet wrote:
> Hello,
> 
> 5.2.13 is working fine (great) still with a Dell U4919DW connected via 
> USB-C from a X1 Carbon Gen 6.
> 
> 5.3-rc8 so far is not (blank screen) and errors:
> 
> https://pastebin.com/tXFi6AfK
> 
> Seems there has been some refactoring for just this kind of connection in 5.3?
> 
> Is there perhaps and issue since for this scenario or are other 
> components at fault perhaps (ACPI / mutter)?
> 
> Thanks!
>
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Re: USB-C

[Jani Nikula]

On Mon, 09 Sep 2019, nnet <nnet@fastmail.fm> wrote:
> Searching on the kernel warnings and errors didn't bring it up, but in browsing bugzilla I stumbled on this.
>
> Bug 111501 - [CFL] Kernel 5.3.0-rc6: i915 fails at typec_displayport 5120x1440 
> https://bugs.freedesktop.org/show_bug.cgi?id=111501
>
> It's the same monitor and connection type.
>
> Is the related patchset intended for 5.3 then? 
> https://patchwork.freedesktop.org/series/66286/
>
> Thanks
>
> On Mon, Sep 9, 2019, at 10:06 AM, nnet wrote:
>> Hello,
>> 
>> 5.2.13 is working fine (great) still with a Dell U4919DW connected via 
>> USB-C from a X1 Carbon Gen 6.
>> 
>> 5.3-rc8 so far is not (blank screen) and errors:
>> 
>> https://pastebin.com/tXFi6AfK
>> 
>> Seems there has been some refactoring for just this kind of connection in 5.3?
>> 
>> Is there perhaps and issue since for this scenario or are other 
>> components at fault perhaps (ACPI / mutter)?

Please check if the patches on the bug help you, and follow-up on the
bug. Thanks.

BR,
Jani.


-- 
Jani Nikula, Intel Open Source Graphics Center
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