I've hacked qtmir to print the subpixel hint that Mir is supplying.
http://pastebin.ubuntu.com/24007971/ is my output. First I run a simple
qml demo shell as nested server under USC, get "0" hint.
Then I run again as host server, get a hint "1 = RGB".
The "Subpixel hint" output of the 2 cases
Just testing it now, AFAICS a nested server is not getting the correct
subpixel data passed to it.
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Title:
Subpixel order not included in Mir
UITK already using NativeRendering for text when GU<10.
Text *might* be improved by setting Qt's DPI and sub-pixel rendering
hints correctly.
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** Also affects: mir (Ubuntu)
Importance: Undecided
Status: New
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Title:
Randomly corrupt font / text / characters in Unity8
To manage
d
** Changed in: qtmir (Ubuntu)
Status: Confirmed => In Progress
** Changed in: qtmir (Ubuntu)
Assignee: (unassigned) => Gerry Boland (gerboland)
** Description changed:
- Corrupted characters in text rendering, mainly in Unity8 window
- titlebars.
+ Corrupted characters in tex
After re-reading my bug description, it could also be interpreted as a
bug in compizconfig-settings-manager so I added it as an "also affects".
compizconfig-settings-manager 1:0.9.12.2+16.04.20160823-0ubuntu1
I just wish I knew what layer was preventing it from being a vlid
binding.
** Also
I'm looking into this now. I took an api trace of some simple font
rendering by Qt on Mir showing the problem, and executed it on my X11
session. It renders ok on X11. Reading through the apitrace, Qt seems to
be doing the right thing.
I suspect the mismatch we have between Mir creating a GLES
@kgunn - yes I can reproduce it quite reliably too. No need to try the
glyph cache workaround thing, I checked it and it had no impact.
@duflu - Qt is rendering the text.
Since Qt renders text ok in Unity7, there must be some GL configuration
problem in QtMir/QtUbuntu causing this kind of issue.
I've a bunch of questions. Any time you see EGL complaints, it is often
down to the graphics driver.
1. is this complaint for an NVidia-based system only? The log indicates
it has the proprietary nvidia driver installed, which Mir does not
support (and so Unity8 does not run). How are you
@duflu dobey is correct, UAL only launches apps with a valid desktop
file.
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Title:
[regression] ubuntu-app-launch doesn't launch apps any more
** Changed in: qtmir
Status: In Progress => Fix Released
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Title:
[regression] OSK appears blank and/or flickers in the lock screen
To
One backtrace, slightly confusing: http://pastebin.ubuntu.com/23874652/
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Title:
unity8 crash after create a new online account
To manage
Relevant unity8.log output before crash:
http://pastebin.ubuntu.com/23874565/
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Title:
unity8 crash after create a new online account
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Yes mir_output_set_scale_factor is needed, as the settings app needs an
API to communicate the desired scale factor to unity8
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Title:
support
So while a menu is open, only that surface should get mouse hover
events.
That is how things work today. Do we want Design input on that?
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Title:
Public bug reported:
Version in the pkgconfig file is 0.2
Version of libcontent-hub according to the debian packaging is 0.3.x
The minor version should match at least, no?
** Affects: content-hub (Ubuntu)
Importance: Undecided
Status: New
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Ok, rather marginal use-cases then :)
At least Mir allows this kind of request can be filtered by Unity8 in
future, to prevent this kind of thing being abused. Perhaps need a
system so that privileged clients can do this if they need.
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> It is actually valid for apps to be able to change the power mode
> of the display. mirout in Mir 0.26.0 has such an option. But I agree
> it's bad for apps to do it unexpectedly
@vanvugt can you share examples of times when this is valid? I'm of the
opinion display on/off/suspend should be
ged in: qtmir (Ubuntu)
Importance: Undecided => High
** Changed in: qtmir (Ubuntu)
Assignee: (unassigned) => Gerry Boland (gerboland)
** Changed in: unity8 (Ubuntu)
Status: Confirmed => Invalid
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** Branch linked: lp:~gerboland/qtubuntu/quit-gracefully-on-no-
mirconnection
** Changed in: qtubuntu (Ubuntu)
Status: New => In Progress
** Changed in: qtubuntu (Ubuntu)
Importance: Undecided => Medium
** Changed in: qtubuntu (Ubuntu)
Assignee: (unassigned) => Ger
So is actual desired fix to not crash, just quit gracefully?
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Title:
clients crash with "UbuntuClientIntegration: connection to Mir server
I'm adding Oxide to the bug, as the browser chrome is being rendered ok.
I also see these strings in the browser log:
[0111/095625:ERROR:layer_tree_host_impl.cc(2189)] Forcing zero-copy tile
initialization as worker context is missing
[0111/095625:ERROR:oxide_compositor_gpu_shims.cc(258)] Error
Note sure where to put this:
I installed silo 2341 as I was hitting this problem on my zesty machine,
but now creating a container with container manager fails with:
Failed to download http://images.linuxcontainers.org//meta/1.0/index-user
LxcContainer.py:254: ERROR:
I'm failing to reproduce this unfortunately. I'm also failing to create
a libertine container. It was failing due to bug 1653973, so I installed
silo 2341, but now it fails with:
Failed to download http://images.linuxcontainers.org//meta/1.0/index-user
LxcContainer.py:254: ERROR:
** Branch linked: lp:~gerboland/qtmir/initial-surface-expose
** Changed in: qtmir (Ubuntu)
Status: Confirmed => In Progress
** Changed in: qtmir (Ubuntu)
Assignee: (unassigned) => Gerry Boland (gerboland)
** Changed in: qtmir
Status: Confirmed => In Progress
*
Please paste in the output of
dpkg -l | grep mir
and the contents of the greeter process log around the time of this crash.
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Title:
** Tags added: unity8
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Title:
MainView is missing an API to dynamically set supported orientations
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** Tags added: unity8
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Title:
Text input popover and selection cursors not oriented properly in
shell
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** Tags added: unity8
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Title:
Allow apps to keep the screen on
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** Tags added: unity8
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Title:
UITK on Intel i915 (atom)is very slow
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** Tags added: unity8
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Title:
external monitor grid units are not set correctly
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** Tags added: unity8
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Title:
Ubuntu Components is hard on the disk and CPU when loading images
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** Tags added: unity8
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Title:
units.gu() emits changed signal before completion
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** Tags added: unity8
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Title:
UbuntuShape on intel i915 (Atom) uses fallback CPU rendering
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** Tags added: unity8
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Title:
"units" context property is app-global
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Public bug reported:
[MIR] MirAL is an ABI-preserving abstraction layer for Mir, insulating
them from mirserver ABI breaks.
This will be used by QtMir/Unity8:
https://bileto.ubuntu.com/#/ticket/2160
MIR Requirements checked, all ok.
** Affects: miral (Ubuntu)
Importance: Critical
** Changed in: qtmir (Ubuntu)
Status: New => Confirmed
** Changed in: qtmir (Ubuntu)
Importance: Undecided => Medium
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Title:
qtmir
Unity8 is overriding the client-requested window size in phone/tablet
mode, but this shouldn't be happening for desktop mode.
We also need to save the client-requested window geometry in case shell
later wishes to apply that.
Agreed I'd like a specific example
** Changed in: qtmir (Ubuntu)
Could you also share hte output of
xargs -n 1 -0 < /proc/`pidof unity8`/enviro | grep QT_
in case there are Qt dynamic scaling env vars set in your environment
too. (e.g. QT_DEVICE_PIXEL_RATIO, QT_AUTO_SCREEN_SCALE_FACTOR,
QT_SCALE_FACTOR, QT_SCREEN_SCALE_FACTORS)
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Oops, safer to use grep:
xargs -n 1 -0 < /proc/`pidof unity8`/environ | grep GRID_UNIT
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Title:
incorrect UI scale on high-resolution desktop
Hey,
this is weird. Would you be able to open a terminal and run the following
command:
xargs -n 1 -0 < /proc/`pidof unity8`/environ | ag GRID_UNIT
(it prints all the environment variables that the unity8 process has, and just
returns the GRID_UNIT_PX one)
Thanks
-G
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Contents of $HOME/.cache/upstart/unity8.log might be handy too
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Title:
incorrect UI scale on high-resolution desktop
To manage notifications
@jsalisbury - I tried your kernel, it fixes the issue for me.
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Title:
4.8 kernel, under heavy load desktop unusable
To manage notifications
Yeah the unity8 log makes me suspect qtmir, it deals with disabling the
display ok, but enabling it doesn't yield 2 screens again
** Also affects: qtmir
Importance: Undecided
Status: New
** Changed in: qtmir
Status: New => Confirmed
** Changed in: qtmir
Importance: Undecided
QtMir/Unity8 is designed to deal with spanning displays - it is actually
cloned displays it needs work to support!
@jonas Could you give us a means to test this behaviour?
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Installing kernel from http://kernel.ubuntu.com/~kernel-
ppa/mainline/v4.9-rc3 fixes the issue
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Title:
4.8 kernel, under heavy load desktop
/dev/snd/pcmC0D0p: gerry 4929 F...m pulseaudio
/dev/snd/controlC0: gerry 4929 F pulseaudio
CurrentDesktop: Unity
Date: Tue Nov 1 12:02:02 2016
HibernationDevice: RESUME=UUID=2cba34fc-e62e-44c2-904a-1f3f96fbc5eb
InstallationDate: Installed on 2016-05-05 (179 days ago
>From the stacktrace, this appears to be a crash on shutdown.
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Title:
unity8 crashed with SIGSEGV in QListData::begin from QList::begin from
** Changed in: qtmir (Ubuntu)
Status: In Progress => Invalid
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Title:
Switching between two windows of the same app using quick swipe from
Can you give me steps to repro the problem clearly?
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Title:
new windows not respecting width and height
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Why is there not a better fallback cursor than a fully blank one?
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Title:
Mouse cursor disappears (or just never changes) when entering the
AFAICS Mir has means to ask clients to close windows, but I don't see an
API to ask the client itself to quit.
** No longer affects: unity (Ubuntu)
** Changed in: qtmir (Ubuntu)
Status: New => Confirmed
** Changed in: qtmir (Ubuntu)
Importance: Undecided => Medium
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Note it is only Unity8 which is mixing GL and GLES calls, clients are
not doing that. Qt clients are only doing GL calls on desktop.
Nothing obvious comes to mind here.
It may be Qt's EGL configuration code is failing - code that QtUbuntu is
using. Another consumer of that same code is the EGL
This issue was worked around, but with a far-from-ideal solution
** Also affects: lttng-ust (Ubuntu)
Importance: Undecided
Status: New
** Also affects: qtmir (Ubuntu)
Importance: Undecided
Status: New
** Changed in: qtmir (Ubuntu)
Status: New => Triaged
** Changed
** Description changed:
You're unable to open two instances of the same app. Such as gedit or
firefox.
- qtmir needs instance-based signals: app instance started, app instance
- stopped, etc
+ qtmir needs iUAL to provide nstance-based signals: app instance started,
+ app instance stopped,
There is nothing libertine specific about this feature request
** Summary changed:
- Need to support multiple instances of libertine applications
+ Need to support multiple instances of applications
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Thanks for this Ted!
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Title:
Need API to allow shell to choose custom OOM killer scores
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Hey. Acer Aspire V3-472G here also.
I have this same bug and currently experiencing it on 4.4.0-34-generic.
14.04 was flawless.
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Title:
[Acer
I'd be interested if this makes any impact:
https://code.launchpad.net/~gerboland/qtubuntu/eglconvenience-
retry/+merge/298114
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Title:
lttng-ust used at runtime, is useful for event tracing. We dynamically
link to the library currently, but we can refactor to dlload it...
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Title:
Occoured during an update 4.04 to 16
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Title:
package phpmyadmin 4:4.5.4.1-2ubuntu1 failed to install/upgrade:
subprocess installed
Ah no, I'm reading the API wrong (kudos to faenil for correcting me):
QPoint pixelDelta
is in integers, as are all QWheelEvent calculations. So that's not going to
work without breaking Qt APIs, which is unlikely.
An alternative option might be to us Qt's support for native gesture
events - this
Are you looking at the right code? I see this from Qt5.4 source
(qtbase/src/gui/kernel/qwindowsysteminterface.h)
static void handleWheelEvent(QWindow *w, const QPointF & local, const
QPointF & global, QPoint pixelDelta, QPoint angleDelta, Qt::KeyboardModifiers
mods = Qt::NoModifier,
https://github.com/libhybris/libhybris/pull/316 has been landed. I can
remove the QtUbuntu workaround
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Title:
Terminal app crashes with "Failed
Of course we will. We need to re-land the fix. It was reverted because
it broke something else, but that's been solved now. Sorry for the
delay, but it takes time to get things done just right.
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** Changed in: ubiquity (Ubuntu)
Assignee: (unassigned) => gerry (gerry641)
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Title:
i can't install ubuntu 16.04 installer crash
To man
Also worth noting, there are env vars:
QT_DEFAULT_TEXTURE_GLYPH_CACHE_WIDTH & HEIGHT to set the size of the glyph
cache. Need to see what size texture Qt is creating, perhaps it is creating one
too large for the hardware
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That would imply the distance field texture is corrupted.
As a note to myself, there is a nice glyph test application in this bug:
https://bugreports.qt.io/browse/QTBUG-49490
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If you can reproduce this relative easily, could you try setting
QML_USE_GLYPHCACHE_WORKAROUND=1 for unity8. This should do the trick:
stop unity8 && start unity8 QML_USE_GLYPHCACHE_WORKAROUND=1
Can also try these:
QSG_DISTANCEFIELD_ANTIALIASING=subpixel-lowq or gray
Need to determine if that
"this functionality" = current form factor? Or is there more you need?
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Title:
Google search page is scaled on window resize
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Unity8/QtMir/Mir is not updating the display configuration when changing
from tablet to desktop mode, so clients cannot tell what mode they
should appear in.
QtMir needs to allow Unity8 to set the form factor property on the Display.
Mir needs to fix https://bugs.launchpad.net/mir/+bug/1556142 so
QPA has nothing to do with rendering itself, and only selects the
default unix font renderer for Qt to use.
We need information on your hardware, linux install, GPU, etc. I suspect
a MESA bug.
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** Changed in: ubuntu-ui-toolkit (Ubuntu)
Importance: Undecided => High
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Title:
UbuntuShape on intel i915 (Atom) uses fallback CPU rendering
https://github.com/libhybris/libhybris/pull/316 has a better solution to
this issue for now
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Title:
Terminal app crashes with "Failed to load
Digging into the actual root cause, QOpenGLES3Helper has QLibrary load
"libGLESv2.so" but this is failing. Using LD_DEBUG=libs you can see:
5646: find library=libGLESv2.so [0]; searching
5646: search path=/vendor/lib:/system/lib
(LD_LIBRARY_PATH)
5646:
My eglconvenience branch does cause this, but annoyingly by doing the
correct thing.
Before eglconvenience, we hardcoded GLESv2.0 into QtUbuntu. With
eglconvenience, we query the GL version string and correctly fetch the
GL version the driver supports. On several of our devices, that is
actually
** Also affects: qtubuntu
Importance: Undecided
Status: New
** Changed in: qtubuntu
Status: New => Triaged
** Changed in: qtubuntu
Importance: Undecided => Medium
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Public bug reported:
Using Unity8 as desktop, using Terminal app, the Launcher pops out
quickly any time you install/remove any package.
To repro:
apt-get install
It should really only pop out when something in the Launcher changes
** Affects: unity8 (Ubuntu)
Importance: Undecided
Adding QtMir as from Qt5.5 and later, the QPA plugin can specify the
subpixel hinting to Qt's font renderer (is part of QPlatformScreen
implementation).
** Also affects: qtmir
Importance: Undecided
Status: New
** Changed in: qtmir
Status: New => Triaged
** Changed in: qtmir
Hi Mikodo,
thank you for your messages on this topic. Accessibility is something we need
to work on for Unity8. We have plenty to do, from the visual assistance
features you've mentioned, to proper keyboard navigation and text-to-speech
support. We have a solid list of TODOs (we had a meeting
** Changed in: qtubuntu-media (Ubuntu)
Status: New => Confirmed
** Tags added: performance
** Tags added: kpi
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Title:
Creating an Audio
** Also affects: qtmir (Ubuntu)
Importance: Undecided
Status: New
** Also affects: unity8 (Ubuntu)
Importance: Undecided
Status: New
** Changed in: qtmir (Ubuntu)
Status: New => Confirmed
** Changed in: unity8 (Ubuntu)
Status: New => Confirmed
** Changed in:
Ambition is to be able to run:
1. multiple instances (i.e. unique PIDs) of the same application
2. multiple versions of the same application (same appId name, but different
versions)
Shell will need to combine all entries of 1. under the same icon on the
launcher (as Unity7 does now). For 2,
** Also affects: qtmir (Ubuntu)
Importance: Undecided
Status: New
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Title:
Need to support multiple instances of applications
To
Public bug reported:
Hi,
For sbsigntool to compile on Solaris, I'd like to apply the attached patches.
Thanks,
Gerry
** Affects: sbsigntool (Ubuntu)
Importance: Undecided
Status: New
** Tags: sbsigntool solaris
** Patch added: "For sbsigntool to compile on Solaris"
I can't repro this any more. Closing
** Changed in: unity8 (Ubuntu)
Status: In Progress => Won't Fix
** Changed in: unity8 (Ubuntu)
Status: Won't Fix => Invalid
** Changed in: unity8 (Ubuntu Vivid)
Status: In Progress => Invalid
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arm64? Should it not be using a hybris-based driver instead of mesa?
What hardware is this?
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Title:
Mesa causes a segmentation fault on arm64
Yep. The branch has been approved, will take a while to get it landed.
Note that it will be almost unusable until bug 1585723 is resolved.
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Newer version of LTTng landed
** Changed in: telegram-app
Status: New => Invalid
** Changed in: webbrowser-app (Ubuntu)
Status: Confirmed => Invalid
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FYI: INTEL_DEBUG=all is useful, it shows the opcodes mesa is generating
from your shaders.
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Title:
UbuntuShape on intel i915 (Atom) uses
Ouch, on the hardware I have access to to test on, even a single Ubuntu
Shape in a simple QML file has a massive hit on rendering performance.
Rendering times went up 130ms *per shape*!
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I've updated the attached branch with my proposed fix.
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Title:
Unity8-dash on Intel Atom graphics crashes and restarts continuously
[qtubuntu:
Using simple test apps (lp:~gerboland/+junk/openglwindow &
lp:~gerboland/+junk/qquickwindow-debug), it appears that yes Qt is using
OpenGL 1.4 on X for both raw GL and QtQuick apps.
./qquickwindow-debug
Window format: QSurfaceFormat(version 2.0, options QFlags(), depthBufferSize
24,
Ok, I suspect I have found the issue. Seems this hardware only supports
OpenGL 1.4 compatibility profile. Qt's EGL code is asking for at least
version 2.0, and so getting no valid context back.
Could you please install "mesa-utils" package and run "glxinfo". On the
hardware I have access to, I
/me has to stop using "Ok, " at the start of his sentences
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https://bugs.launchpad.net/bugs/1549455
Title:
Unity8-dash on Intel Atom graphics crashes and restarts continuously
Public bug reported:
I'm digging into unity8 performance problems on older generation Intel
GPUs - specifically i915 Atom GPUs.
I've tested a simple QML file with a single empty UbuntuShape in it:
import QtQuick 2.4
import Ubuntu.Components 1.3
Rectangle {
width: 400
height: 300
Ok, I figured out hte EGL issue, it was my misunderstanding. Modifying the
tools to act correctly, I get this for eglinfo:
http://pastebin.ubuntu.com/16686113/
and the qteglchooser correctly chooses a valid Mir EGL config. Why Qt itself
cannot do this, I have yet to understand.
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Forgot to say, that was reproduced running the qteglchooser while there
was no X server running, instead just a Mir server running.
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https://bugs.launchpad.net/bugs/1549455
Title:
Ok, progress, my tools can exhibit the problem:
http://pastebin.ubuntu.com/16677278/
Problems include:
1. libEGL warning: DRI3: xcb_connect failed<- should not be trying that
2. EGL version: 8.-1225087968<- this is garbage
I suspect that there is an issue with EGL.
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Googling around I found this:
https://bugs.freedesktop.org/show_bug.cgi?id=87478
which puts some blame on Qt's shaders for distance field text rendering.
Happier news is that Qt has options to either use a lower quality
distance field rendering approach (fewer ALU instructions) or disabling
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