udldrm does not recover from powersave? Re: udldrmfb: causes WARN in i915 on X60 (x86-32)

From: Pavel Machek
Date: Thu Feb 25 2021 - 04:55:10 EST


Hi!

> >This is in -next, but I get same behaviour on 5.11; and no, udl does
>
> Thanks for reporting. We are in the process of fixing the issue. The latest
> patch is at [1].
>

Thank you, that fixes the DMA issue, and I can use the udl.

...for a while. Then screensaver blanks laptop screen, udl screen
blanks too. Upon hitting a key, internal screen shows up, udl does
not.

I try rerunning xrandr ... --auto, but could not recover it.

Any ideas?

Best regards,
Pavel
--
http://www.livejournal.com/~pavelmachek

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