Bug 485264

Summary:	PIM Applications unable to open on Plasma 6.0.3 Wayland with Qt 6.6.3 with newer Nvidia GPUs
Product:	[Applications] kdepim	Reporter:	wheniwasatruestar
Component:	general	Assignee:	kdepim bugs <kdepim-bugs>
Status:	RESOLVED FIXED
Severity:	normal	CC:	carl, nate, wheniwasatruestar
Priority:	NOR	Keywords:	qt6, wayland
Version:	unspecified
Target Milestone:	---
Platform:	Arch Linux
OS:	Linux
Latest Commit:		Version Fixed In:
Sentry Crash Report:

Description wheniwasatruestar 2024-04-09 08:53:47 UTC

SUMMARY
PIM applications such as Kmail, Kontact, Akonadi Console does not open in the Plasma Wayland session, only in X11 session, when using a newer Nvidia GPU such as 3060 or 4070.

STEPS TO REPRODUCE
1. Possess a newer Nvidia GPU, with the proprietary drivers.
2. Open Plasma 6 Wayland.
3. Attempt to open Kmail.

OBSERVED RESULT
Kmail does not open.

EXPECTED RESULT
Kmail opens.

SOFTWARE/OS VERSIONS
ArchLinux
> uname -a
Linux hostname 6.8.4-arch1-1 #1 SMP PREEMPT_DYNAMIC Fri, 05 Apr 2024 00:14:23 +0000 x86_64 GNU/Linux
> pacman -Qii kmail kontact qt6-base plasma-desktop nvidia nvidia-utils| grep -E "(Name|Version)"
Name            : kmail
Version         : 24.02.1-2
Name            : kontact
Version         : 24.02.1-1
Name            : qt6-base
Version         : 6.6.3-1
Name            : plasma-desktop
Version         : 6.0.3-1
Name            : nvidia
Version         : 550.67-5
Name            : nvidia-utils
Version         : 550.67-1

ADDITIONAL INFORMATION
I am using a Nvidia 3060 with a Light Hash Rate.
https://bbs.archlinux.org/viewtopic.php?id=294707 has noted identical issue with a 4070, claiming that downgrading qt6 to qt6.6.2 has resolved the issue.
Attempting to open in the terminal only results in the following error message
```
> kmail
Connecting to deprecated signal QDBusConnectionInterface::serviceOwnerChanged(QString,QString,QString)
org.kde.pim.akonadiserver: Starting up the Akonadi Server...
/usr/bin/mysqlcheck: Deprecated program name. It will be removed in a future release, use '/usr/bin/mariadb-check' instead
akonadi.collectionattributetable                   OK
akonadi.collectionmimetyperelation                 OK
akonadi.collectionpimitemrelation                  OK
akonadi.collectiontable                            OK
akonadi.flagtable                                  OK
akonadi.mimetypetable                              OK
akonadi.parttable                                  OK
akonadi.parttypetable                              OK
akonadi.pimitemflagrelation                        OK
akonadi.pimitemtable                               OK
akonadi.pimitemtagrelation                         OK
akonadi.relationtable                              OK
akonadi.relationtypetable                          OK
akonadi.resourcetable                              OK
akonadi.schemaversiontable                         OK
akonadi.tagattributetable                          OK
akonadi.tagremoteidresourcerelationtable           OK
akonadi.tagtable                                   OK
akonadi.tagtypetable                               OK
/usr/bin/mysql_upgrade: Deprecated program name. It will be removed in a future release, use '/usr/bin/mariadb-upgrade' instead
This installation of MariaDB is already upgraded to 11.3.2-MariaDB.
There is no need to run mariadb-upgrade again for 11.3.2-MariaDB.
You can use --force if you still want to run mariadb-upgrade
org.kde.pim.akonadiserver: Running DB initializer
org.kde.pim.akonadiserver: DB initializer done
Connecting to deprecated signal QDBusConnectionInterface::serviceOwnerChanged(QString,QString,QString)
org.kde.pim.akonadiserver: New notification connection (registered as Akonadi::Server::NotificationSubscriber(0x7e7cd0002200) )
org.kde.pim.akonadiserver: Subscriber Akonadi::Server::NotificationSubscriber(0x7e7cd0002200) identified as "ETMCalendarMonitor - 109686660511920"
org.kde.pim.akonadiserver: New notification connection (registered as Akonadi::Server::NotificationSubscriber(0x7e7cd00290c0) )
...
org.kde.pim.akonadiserver: Subscriber Akonadi::Server::NotificationSubscriber(0x7e7cd0268d00) identified as "SpecialCollectionsMonitor - 95485126048928"
org.kde.pim.akonadiserver: Subscriber "" disconnected
org.kde.pim.akonadiserver: New notification connection (registered as Akonadi::Server::NotificationSubscriber(0x7e7cd00a48b0) )
org.kde.pim.akonadiserver: New notification connection (registered as Akonadi::Server::NotificationSubscriber(0x7e7cd0299970) )
kf.windowsystem: KWindowInfo is only functional when running on X11
Please register the custom scheme 'urn' via QWebEngineUrlScheme::registerScheme() before installing the custom scheme handler.
org.kde.pim.akonadiserver: Subscriber "" disconnected
org.kde.pim.akonadiserver: New notification connection (registered as Akonadi::Server::NotificationSubscriber(0x7e7cd0030bb0) )
org.kde.pim.akonadiserver: New notification connection (registered as Akonadi::Server::NotificationSubscriber(0x7e7cd02a3df0) )
org.kde.pim.akonadiserver: Subscriber "" disconnected
...
```
but the kmail window does not show up.

Comment 1 Christophe Marin 2024-04-09 15:32:09 UTC

Could be https://bugreports.qt.io/browse/QTBUG-124174

try `QTWEBENGINE_CHROMIUM_FLAGS="--disable-gpu" kmail` to verify

Comment 2 wheniwasatruestar 2024-04-09 15:40:56 UTC

(In reply to Christophe Marin from comment #1)
> Could be https://bugreports.qt.io/browse/QTBUG-124174
> 
> try `QTWEBENGINE_CHROMIUM_FLAGS="--disable-gpu" kmail` to verify

Hi Christophe Marin,
Thanks for the reply.

Launching from a terminal....

```
> QTWEBENGINE_CHROMIUM_FLAGS="--disable-gpu" kmail
Connecting to deprecated signal QDBusConnectionInterface::serviceOwnerChanged(QString,QString,QString)
org.kde.pim.akonadiserver: Starting up the Akonadi Server...
/usr/bin/mysqlcheck: Deprecated program name. It will be removed in a future release, use '/usr/bin/mariadb-check' instead
akonadi.collectionattributetable                   OK
akonadi.collectionmimetyperelation                 OK
akonadi.collectionpimitemrelation                  OK
akonadi.collectiontable                            OK
akonadi.flagtable                                  OK
akonadi.mimetypetable                              OK
akonadi.parttable                                  OK
akonadi.parttypetable                              OK
akonadi.pimitemflagrelation                        OK
akonadi.pimitemtable                               OK
akonadi.pimitemtagrelation                         OK
akonadi.relationtable                              OK
akonadi.relationtypetable                          OK
akonadi.resourcetable                              OK
akonadi.schemaversiontable                         OK
akonadi.tagattributetable                          OK
akonadi.tagremoteidresourcerelationtable           OK
akonadi.tagtable                                   OK
akonadi.tagtypetable                               OK
/usr/bin/mysql_upgrade: Deprecated program name. It will be removed in a future release, use '/usr/bin/mariadb-upgrade' instead
This installation of MariaDB is already upgraded to 11.3.2-MariaDB.
There is no need to run mariadb-upgrade again for 11.3.2-MariaDB.
You can use --force if you still want to run mariadb-upgrade
org.kde.pim.akonadiserver: Running DB initializer
org.kde.pim.akonadiserver: DB initializer done
Connecting to deprecated signal QDBusConnectionInterface::serviceOwnerChanged(QString,QString,QString)
org.kde.pim.akonadicontrol: Akonadi server is now operational.
org.kde.pim.akonadiserver: New notification connection (registered as Akonadi::Server::NotificationSubscriber(0x7eadc0002200) )
org.kde.pim.akonadiserver: Subscriber Akonadi::Server::NotificationSubscriber(0x7eadc0002200) identified as "ETMCalendarMonitor - 100463343412336"
org.kde.pim.akonadiserver: New notification connection (registered as Akonadi::Server::NotificationSubscriber(0x7eadc00294e0) )
org.kde.pim.akonadiserver: New notification connection (registered as Akonadi::Server::NotificationSubscriber(0x7eadc003efc0) )
org.kde.pim.akonadiserver: New notification connection (registered as Akonadi::Server::NotificationSubscriber(0x7eadc0030810) )
...
org.kde.pim.akonadiserver: Subscriber Akonadi::Server::NotificationSubscriber(0x7eadc02469b0) identified as "SpecialCollectionsMonitor - 109019720549696"
Please register the custom scheme 'urn' via QWebEngineUrlScheme::registerScheme() before installing the custom scheme handler.
org.kde.pim.akonadiserver: Subscriber Akonadi::Server::NotificationSubscriber(0x7eadc0257ec0) identified as "MessageListTagMonitor - 109019727279424"
org.kde.pim.akonadiserver: Subscriber Akonadi::Server::NotificationSubscriber(0x7eadc0257ec0) identified as "MessageListTagMonitor - 109019727279424"
org.kde.pim.akonadiserver: Subscriber Akonadi::Server::NotificationSubscriber(0x7eadc0261360) identified as "MessageViewerMonitor - 109019730950720"
org.kde.pim.akonadiserver: Subscriber Akonadi::Server::NotificationSubscriber(0x7eadc0261360) identified as "MessageViewerMonitor - 109019730950720"
Please register the custom scheme 'urn' via QWebEngineUrlScheme::registerScheme() before installing the custom scheme handler.
org.kde.pim.akonadiserver: New notification connection (registered as Akonadi::Server::NotificationSubscriber(0x7eadc0090300) )
org.kde.pim.akonadiserver: Subscriber Akonadi::Server::NotificationSubscriber(0x7eadc02456c0) identified as "KMail Kernel ETM - 109019730536816"
org.kde.pim.akonadiserver: Subscriber Akonadi::Server::NotificationSubscriber(0x7eadc026a760) identified as "TagActionManagerMonitor - 109019733799552"
org.kde.pim.akonadiserver: Subscriber Akonadi::Server::NotificationSubscriber(0x7eadc0090300) identified as "FilterManagerTagMonitor - 109019728190864"
We have an error during reading password  "Entry not found"
We have an error during reading password  "Entry not found"
org.kde.pim.akonadiserver: Error while handling command FetchCollections on connection akonadi_ews_resource_1 (0x5843531e0870)
org.kde.pim.akonadiserver: Error while handling command FetchCollections on connection akonadi_ews_resource_0 (0x5843531e11c0)
QTextHtmlParser::applyAttributes: Unknown color name 'rgba(255, 255, 255, 0.9)'
QTextHtmlParser::applyAttributes: Unknown color name 'rgba(255, 255, 255, 0.9)'
QTextHtmlParser::applyAttributes: Unknown color name 'rgba(255, 255, 255, 0.9)'
org.kde.pim.akonadiserver.search: Executing search "kmail2-1588091513-SearchSession"
org.kde.pim.akonadiserver.search: Search  "kmail2-1588091513-SearchSession" done (without remote search)
[SASL-XOAUTH2] - Requesting authID!
[SASL-XOAUTH2] - Requesting token!
[SASL-XOAUTH2] - filling prompts!
[SASL-XOAUTH2] - Requesting authID!
[SASL-XOAUTH2] - Requesting token!
[SASL-XOAUTH2] - Requesting authID!
[SASL-XOAUTH2] - Requesting token!
[SASL-XOAUTH2] - filling prompts!
[SASL-XOAUTH2] - Requesting authID!
[SASL-XOAUTH2] - Requesting token!
org.kde.pim.ews: Streaming request timeout - restarting
org.kde.pim.ews: Streaming request timeout - restarting
...
```
The output is basically identical.

Contrary to the Qt bug report, I wouldn't describe Kmail as freezing, so much so as it just outright failing to even spawn a window.

Comment 3 wheniwasatruestar 2024-04-15 19:05:37 UTC

Updating my system after having had updates pushed to ArchLinux, running the same pacman -Qii | grep command from before:
Name            : kmail
Version         : 24.02.2-1
Name            : kontact
Version         : 24.02.2-1
Name            : qt6-base
Version         : 6.7.0-2
Name            : plasma-desktop
Version         : 6.0.3-1
Name            : nvidia
Version         : 550.67-6
Name            : nvidia-utils
Version         : 550.67-1
along with Plasma Framework going from 6.0.0 -> 6.1.0, Kmail now does spawn a window without issue on Plasma Wayland.