Re: "No GPUs found with udev" gnome-shell error on Raspberry Pi 3b+

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On Tue, Jun 25, 2019 at 9:03 AM Peter Robinson <pbrobinson@xxxxxxxxx> wrote:
>
> On Tue, Jun 25, 2019 at 6:51 AM Stefan Wahren <stefan.wahren@xxxxxxxx> wrote:
> >
> > On 24.06.19 17:44, Peter Robinson wrote:
> > > On Mon, Jun 24, 2019 at 4:09 PM Stefan Wahren <stefan.wahren@xxxxxxxx> wrote:
> > >> Hi Jan,
> > >>
> > >> On 24.06.19 16:41, Jan Kratochvil wrote:
> > >>> Hi all,
> > >>>
> > >>> after F-30 runs from MicroSD for me now I tried to run X (so far I had
> > >>> runlevel "3") and I get the same messages.
> > >>>
> > >>> Nothing important, I can try also new installation of F-30.
> > >>>
> > >>>
> > >>> On Thu, 20 Jun 2019 12:03:59 +0200, Peter Robinson wrote:
> > >>>> What kernel is this?
> > >>> kernel-5.2.0-0.rc5.git0.1.fc31.aarch64
> > >>>
> > >>>
> > >>>> I'm presuming you're running the Workstation
> > >>>> images here, and not something hand crafted.
> > >>> The same as OP - F-29 upgraded to F-30. I do not remember which image it was
> > >>> but I expect Workstation as I have also
> > >>> fedora-release-workstation-30-4.noarch.
> > >>>
> > >>>
> > >>> On Thu, 20 Jun 2019 13:03:34 +0200, Stefan Wahren wrote:
> > >>>> the output of the kernel log would be more helpful.
> > >>> Attached.
> > >> thanks this is very helpful, unfortunately this is a know but unresolved
> > >> issue:
> > >>
> > >> [   33.547901] bcm2835-power bcm2835-power: Timeout waiting for grafx
> > >> power OK
> > >>
> > >> https://github.com/anholt/linux/issues/153
> > > So at at quick glance that looks to be due to the new power driver?
> >
> > Correct
> >
> > I wasn't able to reproduce this on my available boards.
> >
> > Are you able to reproduce it?
>
> Well I see the "bcm2835-power bcm2835-power: Timeout waiting for grafx
> power OK" error across a pair of 3Bs and a 3A+, I don't see it on a
> 3B+ but that one is loading the firmware provided DT and enabling the
> Sense HAT and I suspect the version of the firmware DT, from around
> late March/early April doesn't have the DT bits for that driver and
> hence it's not being activated. All are currently on 5.2-rc5 kernel.

For reference, updating to the latest firmware/firmware DT the driver
loads but I don't get an error, just:
bcm2835-power bcm2835-power: Broadcom BCM2835 power domains driver

That's a minimal text only image, display attached but just at a linux
console login.

P
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