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Groups > linux.debian.devel.testing > #1118

Bug#927324: Additional reports; GNOME session is, with blank screen ON, without suspend, unstable.

Cross-posted to 2 groups.

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Dear maintainers,

I first reported GNOME display resume problem,
and thought it has something around power management;

I thought, it would be a minor problem, since,

* My testing amd64 machine is DIY, though there had no
   hardware issues, freeze, BSOD, etc, about a year,
   with multiple operating systems.

* I setup the box with relatively abnormal settings,
   say LVM, LUKS, separated and restricted mount points,
   PAM restrictions, etc.

However, I want to report (claim?) two things.

1. GNOME, blank screen, i2c, xwayland
======================================

Today I found a GNOME session broken during
automatic screen blank. No suspend, no resume.

syslog says, around the screen trouble time,

* kernel: i2c i2c-1: sendbytes: NAK bailout.

/sys/class/i2c-adapter/i2c-1/name is "i915 gmbus dpc".

To be honest, I have no idea if that matters on this case.

By the way, in debian-devel, I saw something about wayland.

My screen report almost has some wayland error log,
such as

* gnome-shell: connection to xwayland lost

2. Wayland itself and the next Debian "stable"
==============================================

I am not familiar with wayland.

IMHO, if that is good (and it seems so,)
AND stable, then Debian "stable" GNOME/Wayland makes sense.

I'm using Stretch with almost same amd64 box,
Kaby Lake, iGPU, NVMe, HDMI, LVM, LUKS, etc., about a year.

It's solid stable.

If it is about whether X11 or Wayland,
I vote for X11, since Buster is becoming "stable" release.

More simply: Wayland itself is so stable?

Anyway, I will keep testing with my H110 Skylake box and
Z270 Kaby Lake box, clean install for the former,
upgrade from Stretch for the latter.

Regards.

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Thread

Bug#927324: upgrade-reports: Buster upgrade: Z270 + Kaby Lake iGPU (HDMI -> LCD,) suspends but resume display unstable. hoxp18 <hoxp18@noramail.jp> - 2019-04-18 05:10 +0200
  Bug#927324: Additional reports; partial logs during resume display blank issue. hoxp18 <hoxp18@noramail.jp> - 2019-04-21 02:10 +0200
  Bug#927324: Additional reports; GNOME session is, with blank screen ON, without suspend, unstable. hoxp18 <hoxp18@noramail.jp> - 2019-04-21 15:30 +0200
  Bug#927324: status report and etc. hoxp18 <hoxp18@noramail.jp> - 2019-05-09 15:00 +0200

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