Hi again,

finally the root cause revealed oneself - the CPU has died 8-<

Yesterday the machine didn't reboot at all, instead the battery LED was flashing yellow two times, followed by a white flash. According to DELL this indicates a CPU failure.

Support will change the mainboard the day after tomorrow.

Bye.

Michael.

On Samstag, 14. November 2020 20:00:25 CET mh@mike.franken.de wrote:

> Hi *,

>

> for a long time I got messages like

>

> i915 0000:00:02.0: [drm] *ERROR* CPU pipe A FIFO underrun

> i915 0000:00:02.0: [drm] *ERROR* Atomic update failure on pipe B

> (start=315366

 end=315367) time 312 us, min 1431, max 1439, scanline start

> 1417, end 1444

> from time to time, but this didn't seem to have any further impact on the

> system.

>

> But starting this week about three times a day the machine freezes

> completely

 with no apparent reason besides more of the above mentioned

> messages. No other error messages are shown in the journal or any other

> logs. This does not happen with Windows 10 running on the same machine, but

> from an external thunderbolt ssd instead of the internal M.2 ssd.

>

> Machine is a Dell Inc. XPS 13 9370/0F6P3V, BIOS 1.13.1 07/08/2020.

>

> Does anyone else face this problem?

> Any idea what to check or do against it?

>

> TIA.

>

> Bye.

> Michael.

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