Bug#1025213: mutter

[Gert van de Kraats]

Thank you for adding gallium i915 to mesa 22.3.2-1. Now at least the
default Debian testing release is usable at my laptop.

But the  problem stills persists, if the i915-driver is removed and
kms_swrast is used.

In fact it is a mutter-problem (43.2-4) with shadow buffering.
Problem can be best viewed by opening a Terminal-window at main
Gnome-Shell window.
After some fast flickering the screen is updated every second which is
driven by the blinking of the cursor at the terminal.
Clearly can be seen the current terminal-line is correctly updated with
blinking cursor, but with 3 different old backgrounds.
If the next minute is started the time at the top is switching between 
previous and current time.


With environment variables MUTTER_DEBUG=kms and COGL_DEBUG=clipping this
can be monitored.

The syslog shows messages
gnome-shell[6588]: Device '/dev/dri/card0' prefers shadow buffer
gnome-shell[6588]: Initialized single buffered shadow fb for VGA-1
gnome-shell[6588]: Initialized single buffered shadow fb for LVDS-1

Shadow buffering is only used at software rendering!
The problem disappears if shadow buffering is disabled at
src/backends/native/meta-kms-impl-device.c at
function should_force_shadow_fb:
return FALSE;

Function drmGetCap is called by mutter to check if the device
prefers shadow buffering.

weston_11.0.0-2_amd64.changes ACCEPTED into experimental

[Debian FTP Masters]

Thank you for your contribution to Debian.



Accepted:

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Hash: SHA512

Format: 1.8
Date: Tue, 17 Jan 2023 20:10:49 +0200
Source: weston
Binary: libweston-11-0 libweston-11-dev weston
Architecture: source amd64
Version: 11.0.0-2
Distribution: experimental
Urgency: medium
Maintainer: Debian X Strike Force 
Changed-By: Timo Aaltonen 
Description:
 libweston-11-0 - reference implementation of a wayland compositor (shared libs)
 libweston-11-dev - reference implementation of a wayland compositor (shared 
libs)
 weston - reference implementation of a wayland compositor
Changes:
 weston (11.0.0-2) experimental; urgency=medium
 .
   * Add signing-key by emersion.
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Bug#1029194: libvulkan-dev: No longer multi-arch installable

[Hugh McMaster]

Package: libvulkan-dev
Version: 1.3.236.0-1
Severity: normal

Dear Maintainer,

While performing a standard package update, dpkg terminated due a multi-arch
conflict in libvulkan-dev. My system has both amd64 and i386 flavours
installed.

Relevant output:
Unpacking libvulkan-dev:i386 (1.3.236.0-1) over (1.3.231.1-1) ...
dpkg: error processing archive /tmp/apt-dpkg-install-WHdLcA/257-libvulkan-
dev_1.
3.236.0-1_i386.deb (--unpack):
 trying to overwrite shared
'/usr/share/cmake/VulkanHeaders/VulkanHeadersConfigVersion.cmake', which is
different from other instances of package libvulkan-dev:i386

Removing one of the arch versions allowed dpkg to finish upgrading all other
packages.


-- System Information:
Debian Release: bookworm/sid
  APT prefers unstable
  APT policy: (500, 'unstable')
Architecture: amd64 (x86_64)
Foreign Architectures: i386

Kernel: Linux 6.1.0-1-amd64 (SMP w/2 CPU threads; PREEMPT)
Kernel taint flags: TAINT_OOT_MODULE, TAINT_UNSIGNED_MODULE
Locale: LANG=en_AU.UTF-8, LC_CTYPE=en_AU.UTF-8 (charmap=UTF-8), 
LANGUAGE=en_AU:en
Shell: /bin/sh linked to /usr/bin/dash
Init: systemd (via /run/systemd/system)
LSM: AppArmor: enabled

Versions of packages libvulkan-dev depends on:
ii  libvulkan1  1.3.236.0-1
ii  python3 3.11.1-1

libvulkan-dev recommends no packages.

libvulkan-dev suggests no packages.

-- no debconf information

Processed: your mail

[Debian Bug Tracking System]

Processing commands for cont...@bugs.debian.org:

> package libegl-mesa0
Limiting to bugs with field 'package' containing at least one of 'libegl-mesa0'
Limit currently set to 'package':'libegl-mesa0'

> fixed 1028266 22.3.3-1
Bug #1028266 {Done: Ross Vandegrift } [libegl-mesa0] 
libegl-mesa0: terminology segfaults after ugprade to 22.3.2-1
Marked as fixed in versions mesa/22.3.3-1.
> thanks
Stopping processing here.

Please contact me if you need assistance.
-- 
1028266: https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=1028266
Debian Bug Tracking System
Contact ow...@bugs.debian.org with problems