SUMMARY Switching from one activity window to the next causes bad screen flicker and hesitation to draw the window. This lasts for 1-2 seconds and then continues normally. STEPS TO REPRODUCE 1. Either use the mouse or the shortcut keys to switch from one activity to another. 2. 3. OBSERVED RESULT The entire screen flickers and hesitates to draw the new Activity window. EXPECTED RESULT A smooth transition to the new activity. SOFTWARE/OS VERSIONS Operating System: Arch Linux KDE Plasma Version: 5.26.1 KDE Frameworks Version: 5.99.0 Qt Version: 5.15.6 Kernel Version: 6.0.2-arch1-1 (64-bit) Graphics Platform: X11 Processors: 6 × AMD FX(tm)-6300 Six-Core Processor Memory: 15.6 GiB of RAM Graphics Processor: AMD Radeon RX 550 / 550 Series Manufacturer: Gigabyte Technology Co., Ltd. ADDITIONAL INFORMATION Journalctl -f shows the following every time this sequence is done and requests a bug report be sent: Kandalf plasmashell[1320]: SwitcherBackend: FAILED to get the thumbnail "Unknown error code 0\n\nPlease send a full bug report at https://bugs.kde.org." ("Undocumented Error", "<qt><p><b>Undocumented Error</b></p><p>Unknown error code 0\n\nPlease send a full bug report at https://bugs.kde.org.</p></qt>", "<qt><p><b>Details of the request</b>:</p><ul><li>URL: (unknown)</li><li>Date and time: Friday, October 21, 2022 2:29:14 AM MDT</li><li>Additional information: </li></ul></qt>") Oct 21 02:29:14 Kandalf plasmashell[1320]: SwitcherBackend: FAILED to get the thumbnail "Unknown error code 0\n\nPlease send a full bug report at https://bugs.kde.org." ("Undocumented Error", "<qt><p><b>Undocumented Error</b></p><p>Unknown error code 0\n\nPlease send a full bug report at https://bugs.kde.org.</p></qt>", "<qt><p><b>Details of the request</b>:</p><ul><li>URL: (unknown)</li><li>Date and time: Friday, October 21, 2022 2:29:14 AM MDT</li><li>Additional information: </li></ul></qt>") Oct 21 02:29:14 Kandalf kioslave5[346294]: qt.gui.icc: fromIccProfile: failed minimal tag size sanity Oct 21 02:29:14 Kandalf kioslave5[346294]: qt.gui.icc: fromIccProfile: failed minimal tag size sanity Oct 21 02:29:15 Kandalf plasmashell[1320]: requesting unexisting screen -1 Oct 21 02:29:15 Kandalf plasmashell[1320]: requesting unexisting screen -1 Oct 21 02:29:15 Kandalf plasmashell[1320]: requesting unexisting screen -1 Oct 21 02:29:15 Kandalf plasmashell[1320]: requesting unexisting screen -1 Oct 21 02:29:15 Kandalf plasmashell[1320]: requesting unexisting screen -1 Oct 21 02:29:15 Kandalf plasmashell[1320]: requesting unexisting screen -1 Oct 21 02:29:15 Kandalf plasmashell[1320]: requesting unexisting screen -1 Oct 21 02:29:15 Kandalf plasmashell[1320]: requesting unexisting screen -1 Oct 21 02:29:17 Kandalf plasmashell[1320]: requesting unexisting screen -1 Oct 21 02:29:17 Kandalf plasmashell[1320]: requesting unexisting screen -1 Oct 21 02:29:17 Kandalf plasmashell[1320]: requesting unexisting screen -1 Oct 21 02:29:17 Kandalf plasmashell[1320]: requesting unexisting screen -1 Oct 21 02:29:21 Kandalf plasmashell[1320]: requesting unexisting screen -1 Oct 21 02:29:21 Kandalf plasmashell[1320]: requesting unexisting screen -1 Oct 21 02:29:21 Kandalf plasmashell[1320]: requesting unexisting screen -1 Oct 21 02:29:21 Kandalf plasmashell[1320]: requesting unexisting screen -1 Oct 21 02:29:27 Kandalf plasmashell[1320]: file:///usr/share/plasma/shells/org.kde.plasma.desktop/contents/views/Desktop.qml:177: TypeError: Value is null and could not be converted to an object Oct 21 02:30:13 Kandalf plasmashell[233165]: [2022-10-21 02:30:13.642] [ ] [debug] autosave: no needs to save file
I'm running KDE 5.27.6, and I wasn't able to reproduce the reported error. Tried to reproduce the error, according to the user's orientation, but I didn't notice the reported misbehavior. Besides the information provided, there is any other step that should be followed in order to reproduce the error? Below is the information about the system used for the test: OS: Manjaro Linux x86_64 Kernel: 6.1.41-1-MANJARO Resolution: 2560x1440, 1920x1080 DE: Plasma 5.27.6 WM: KWin WM Theme: Oxygen CPU: Intel i7 4790H GPU: AMD ATI Radeon 6600 Memory: 32043MiB
Dear Bug Submitter, This bug has been in NEEDSINFO status with no change for at least 15 days. Please provide the requested information as soon as possible and set the bug status as REPORTED. Due to regular bug tracker maintenance, if the bug is still in NEEDSINFO status with no change in 30 days the bug will be closed as RESOLVED > WORKSFORME due to lack of needed information. For more information about our bug triaging procedures please read the wiki located here: https://community.kde.org/Guidelines_and_HOWTOs/Bug_triaging If you have already provided the requested information, please mark the bug as REPORTED so that the KDE team knows that the bug is ready to be confirmed. Thank you for helping us make KDE software even better for everyone!
This bug has been in NEEDSINFO status with no change for at least 30 days. The bug is now closed as RESOLVED > WORKSFORME due to lack of needed information. For more information about our bug triaging procedures please read the wiki located here: https://community.kde.org/Guidelines_and_HOWTOs/Bug_triaging Thank you for helping us make KDE software even better for everyone!