From Fedora Project Wiki
(fix typo in julius' results) |
(add a link to the test day report) |
||
| Line 68: | Line 68: | ||
== Test Results == | == Test Results == | ||
[https://www.happyassassin.net/2016/10/14/fedora-25-workstation-wayland-by-default-test-day-report/ Test Day report] | |||
=== GNOME Shell === | === GNOME Shell === | ||
{| | {| | ||
Revision as of 22:35, 14 October 2016
| Workstation Wayland Test Day | |
|---|---|
| |
| Date | 2016-10-13 |
| Time | all day |
| Website | QA/Test Days |
| IRC | #fedora-test-day (webirc) |
| Mailing list | test |
Can't make the date?
If you come to this page before or after the test day is completed, your testing is still valuable, and you can use the information on this page to test, file any bugs you find at Bugzilla, and add your results to the results section. If this page is more than a month old when you arrive here, please check the current schedule and see if a similar but more recent Test Day is planned or has already happened.
If you come to this page before or after the test day is completed, your testing is still valuable, and you can use the information on this page to test, file any bugs you find at Bugzilla, and add your results to the results section. If this page is more than a month old when you arrive here, please check the current schedule and see if a similar but more recent Test Day is planned or has already happened.
What to test?
Today's instalment of Fedora Test Day will focus on Workstation on Wayland - for Fedora 25, the Workstation flavor will be using Wayland by default for the first time, and today we will be testing that it works well enough.
Who's available
The following cast of characters will be available testing, workarounds, bug fixes, and general discussion ...
- Development - Jonas Ådahl (jadahl), Olivier Fourdan (ofourdan)
- Quality Assurance - Adam Williamson (adamw), Sumantro Mukherjee (sumantro)
Prerequisite for Test Day
- An updated Fedora Workstation 25 pre-release, or the Test Day live image.
Live image
A special Test Day live image is available which is based on the Fedora 25 20161011.n.0 nightly build, but includes the latest versions of gtk3, gnome-shell and mutter:
The sha256sum of the image is 2836dcbba89689bea0c7feff4e6769278e64085f8616a6e8ef7d20b34eeec39a.
Using an existing Fedora 25 installation
Using an existing Fedora 25 install to test is fine, but please ensure you are using the default GNOME-on-Wayland session (listed as just 'GNOME' in the login screen session chooser). Please also ensure you have at least the following packages updated:
It may also be a good idea to create a fresh user account for testing, though issues experienced with your regular user account are also of interest.
How to test?
Run the tests
Visit the result page and click on the column title links to see the tests that need to be run: most column titles are links to a specific test case. Follow the instructions there, then enter your results by clicking the Enter result button for the test. In the Profile section, please enter your graphics card model number and/or PCI ID. Note the test cases are just starting points: really the goal of this event is for you to exercise the system with your use cases and your hardware, so please do play around beyond what the test cases suggest!
Exploratory testing
Beyond the planned tests, you can also do exploratory testing. Ideally, just try running lots of different applications - especially the default-installed applications - and using them as you normally would, and report any bugs you find. If you are not sure whether a bug is Wayland-related or not, you can try to reproduce it on X11 instead. There is an Exploratory testing section on the results page for you to record bugs found and other issues noted during exploratory testing.
If you are using an installed system, just log out, and log back in, choosing the GNOME on Xorg session instead of the GNOME session (you can choose a session after selecting the user, before typing the password).
If you are using the Test Day live image, first set a password on the liveuser account - run passwd at a terminal prompt - then you should be able to log out, select the 'liveuser' account on the login screen, and select the GNOME on Xorg session before typing the password.
Reporting bugs
Before reporting a bug, you can check How_to_debug_Wayland_problems for some useful information on gathering data, and some known issues. You can also check the big list of known Wayland bugs.
If you have problems with any of the tests, report a bug to Bugzilla. The component will depend on the bug - it could be the application in which you experienced the problem, or perhaps gtk3, gnome-shell or mutter. Please ask in IRC if you encountered an issue but are not sure where to report it. Please include your graphics card information in the bug report - you can run lshw -c display or lspci -nn , and paste the output into the bug report.
Please also set the bug to block bug #1277927, by typing 1277927 or WaylandRelated into the Blocks: field. If the bug is particularly serious, to the point where in your opinion it would be a bad idea to release Fedora 25 without fixing it, you can also mention it in a comment on bug #1372055.
If you encounter a crash, you should be able to use the ABRT system to file a high-quality bug report. Run gnome-abrt - 'Problem Reporting' in the overview - look for the crash in the list you see, and click the Report button.
Test Results
GNOME Shell
| User | Profile | Wayland Session | Initial Setup | Gesture Support | Activities | Workspaces | References |
|---|---|---|---|---|---|---|---|
| Buvaneshkumar |  |
|
|||||
| Haxxa | GA-Z170MX-Gaming 5, with GTX1080 (Dual DP) |  |
|||||
| Renault | Elitebook 8560w with nVidia Quadro 1000m (nouveau nvc0) | |
|
|
|
||
| a2batic | virt manager | |
|
 |
| ||
| adityakonarde | HP ENVY Core i7 6700HQ. | |
|
|
|
||
| aeperezt | System76 Gazelle Professional ( gazp9 ) | |
|
|
|
|
|
| akinsola | Oracle VirtualBox | |
|
|
|
| |
| alsadi | HP Envy with touch screen | |
|||||
| alsadi | thinkpad t440p nvidia/intel hybrid | |
|
|
|
||
| ankursinha | lab-workstation | |
|
|
|
|
|
| ankursinha | lab-workstation-1 | |
|||||
| behrangsa | Dell Precision 5510 with Mobile Xeon, 4K display, and NVidia Quadro M1000M | |
|
|
|
| |
| blaztinn | |
|
|||||
| blaztinn | Desktop PC: Intel i5-4590, Radeon R9 380 | |
|||||
| cialu | VirtualBox | |
|
|
| ||
| decathorpe | nouveau on GK104 | |
|
|
|
||
| erp | Dell Inspiron 7348 Intel i5-5200U | |
|
| |||
| fredlima | virt manager - Westmere E56xx/L56xx/X56xx (Nehalem-C) 3 gigas of ram, cpu MHz: 2394.456 cache size: 4096 KB | |
|
|
|
||
| greysonsilva | Intel Corporation Mobile GM965/GL960 Integrated Graphics Controller (primary) (rev 0c) | |
|
|
|
||
| greysonsilva | Sony Vaio PCG-5L2L Intel Corporation Mobile GM965/GL960 | |
|
|
|
||
| jagodyn | Lenovo 100S 14IBR Celeron N3050 HD Graphic | |
|
|
|
|
|
| jbastian | Lenovo T60 with Intel 945GM/GMS | |
|
|
|||
| juliuxpigface | Acer Extensa (32 bit laptop - Intel CPU managed by i915) | |
|
|
|
||
| lentzi | Desktop PC CPU: Intel i5-2500K, Graphics: AMD HD 6800 | |
|
|
|||
| lnie | virt-manager | |
|||||
| luaraneda | Intel Core i7-4500U; HD4400; Touchscreen; Fedora Live x86_64-25_Beta-1.1 | |
|
|
|
||
| luya | Gnome Boxes | |
|||||
| luya | Gnome Boxes running on Fedora 24 (Asus X550ZE) | |
|
|
|
||
| luya | Gnome Bozes | |
| ||||
| malak (Donald Buchan) | Dell cpu: Intel® Core™ i5-4460 CPU @ 3.20GHz × 4, graphics card: Intel® Haswell Desktop | |
|
|
| ||
| manik1596 | |
| |||||
| manik1596 | VM(Virtualbox) | |
|
|
|
||
| mcl | |
|
|
| |||
| mohamed94 | Virtual machine (VmWare) | |
|
|
|
||
| morhp | |
||||||
| morhp | virt-manager | |
|
| |||
| nielsenb | HP Compaq 8510w | |
|
|
|||
| panoramix | Samsung NP35... | |
|
| |||
| pepness | Dell Vostro 5470 - Haswell i5 4200U | |
|||||
| potty | VirtualBox 5.0.26 on Macbook Pro 15" | |
|
|
|||
| prakashmishra1598 | virt-manager(VM) | |
|
|
|
||
| pschind | Test Day Live | |
|
|
|
||
| rob__ | |
||||||
| rsulli55 | Core i5-2500K, Radeon 6970 | |
|
|
|
||
| siddharthvipul1 | Virtual machine (virt-manager) | |
|
|
|
||
| siddharthvipul1 | virtual machine (Vmware) | |
| ||||
| siimp | Lenovo T450s, Intel HD5500 | |
|
| |||
| sjenning | Lenovo Carbon X1 (3rd Gen) | |
|||||
| sumantrom | Wayland test day iso on KVM & Lenovo Thinkpad X220 | |
|
| |||
| tenk | MSI GeForce GTX 970 4G | |
| ||||
| tenk | Samsung R530 | |
|
|
|
||
| thebishop | Lenovo Y50 - i7-4710HQ, 16GB DDR3, Intel graphics | |
|
||||
| tomin | DELL XPS13-9333 | |
|
|
|
||
| weanti | Asus X302U: 00:02.0 VGA compatible controller: Intel Corporation HD Graphics 520 + 01:00.0 3D controller: NVIDIA Corporation GK208M [GeForce 920M] | |
|
|
| ||
| zbyszek | virt-manager VM with virtio graphics | |
|
|
|
||
| zdenek | Gnome Boxes (from F24) | |
|
|
|
Applications
| User | Profile | Software | Maps | Weather | Clocks | Calculator | Music | Photos | Vinagre | Boxes | References |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Buvaneshkumar | virtualbox | |
|
| |||||||
| Renault | Elitebook 8560w with nVidia Quadro 1000m (nouveau nvc0) | |
|
|
|
|
|
|
|
||
| a2batic | virt manager | |
|
|
|
| |||||
| adityakonarde | HP ENVY Core i7 6700HQ. | |
|
|
|
|
| ||||
| aeperezt | System76 Gazelle Professional ( gazp9 ) | |
|
|
|
|
|
||||
| ankursinha | lab-workstation | |
|
|
|
|
|||||
| behrangsa | Dell Precision 5510 with Mobile Xeon, 4K display, and NVidia Quadro M1000M | |
|
| |||||||
| cialu | VirtualBox | |
|
|
|
||||||
| decathorpe | nouveau on GK104 | |
|
|
|
|
|
|
|||
| fredlima | virt manager - Westmere E56xx/L56xx/X56xx (Nehalem-C) 3 gigas of ram, cpu MHz: 2394.456 cache size: 4096 KB | |
|
|
|
||||||
| greysonsilva | Sony Vaio PCG-5L2L Intel Corporation Mobile GM965/GL960 | |
|
|
|
|
|
|
|
|
|
| harishpillay | |
| |||||||||
| jagodyn | Lenovo 100S 14IBR Celeron N3050 HD Graphic | |
|
|
|||||||
| juliuxpigface | Acer Extensa (32 bit laptop - Intel CPU managed by i915) | |
|||||||||
| lentzi | Desktop PC CPU: Intel i5-2500K, Graphics: AMD HD 6800 | |
|
|
|
|
|||||
| lnie | virt-manager | |
|||||||||
| luaraneda | Intel Core i7-4500U; HD4400; Touchscreen; Fedora Live x86_64-25_Beta-1.1 | |
|
||||||||
| luya | Gnome Boxes running on Fedora 24 (Asus X550ZE) | |
|
|
|
|
|||||
| manik1596 | VM(Virtualbox) | |
|
|
|
||||||
| mohamed94 | Virtual machine (VmWare) | |
|
|
|
|
|
| |||
| morhp | virt-manager | |
|
|
|
|
|
|
|
|
|
| nielsenb | HP Compaq 8510w | |
|
|
|
||||||
| pepness | Dell Vostro 5470 - Haswell i5 4200U | |
|
|
|||||||
| potty | VirtualBox 5.0.26 on Macbook Pro 15" | |
|
|
|
|
|
|
|||
| prakashmishra1598 | virt-manager(VM) | |
|
|
|
|
|
|
|||
| siddharthvipul1 | Virtual machine (virt-manager) | |
|
|
|
|
|
|
|||
| tenk | Samsung R530 | |
|
|
|
| |||||
| zbyszek | virt-manager VM with virtio graphics | |
|
|
Exploratory testing
| User | Profile | Results | References |
|---|---|---|---|
| Renault | Elitebook 8560w with nVidia Quadro 1000m (nouveau nvc0) | |
|
| aeperezt | System76 Gazelle Professional ( gazp9 ) | |
|
| alsadi | thinkpad t440p nvidia/intel hybrid | |
|
| ankursinha | lab-workstation | |
|
| decathorpe | nouveau on GK104 | |
|
| eischmann | |
||
| eischmann | Thinkpad X240 | |
|
| greysonsilva | Sony Vaio PCG-5L2L Intel Corporation Mobile GM965/GL960 | |
|
| harishpillay | |
||
| juliuxpigface | Acer Extensa (32 bit laptop - Intel CPU managed by i915) | |
|
| mohamed94 | Virtual machine (VmWare) | |
|
| morhp | virt-manager | |
|
| nardusg | nardusg | |
|
| pepness | Dell Vostro 5470 - Haswell i5 4200U | |
|
| prakashmishra1598 | virt-manager(VM) | |
|
| siddharthvipul1 | Virtual machine (virt-manager) | |
|
| thebishop | |
| |
| weanti | Asus X302U: 00:02.0 VGA compatible controller: Intel Corporation HD Graphics 520 + 01:00.0 3D controller: NVIDIA Corporation GK208M [GeForce 920M] | |
|
| zdenek | Gnome Boxes (from F24) | |
Long comments
- ↑ The wayland session would load but immediately return to console until I stopped moving mouse or pressing keys in which case it would return back to session and imediatley exit again when I pressed any input. This cycle would repeat. No screen updates occured.
- ↑ every thing went smoothly but when I was browsing facebook, I was clicking and pointing to the edge but it did not work but pressing [win] worked, later clicking on activities back to work normally. it was a random glitch that is not reproducible.
- ↑ RHBZ #1357244 The usual applications work fine. I know workrave doesn't but it doesn't have a wayland backend at all. Bug filed and sent upstream too: (
- ↑ - Removing all apps from a workspace only deletes the workspace when you remove focus from it. I think this is intended behaviour rather than a bug.
- ↑ RHBZ #1384616 - Had to take the image using my phone for this one - seems to be always reproducible - window border of "thumbnail" in activities overview is not aligned with the thumbnail image
- ↑ RHBZ #1384440 Applications are opened on an active workspace even when dragged to some other one. The exception is anaconda installer that opens on the desktop it is dragged to.
- ↑ GDK_BACKEND=wayland gnome-calculator jumps about a centimeter away after opening, while the x11 version does not (it is already opened at the position the calculator on wayland jumps to). Otherwise everything works OK
- ↑ can't do the 6th step "Drag the icon for a non-running application from the Dash or Applications menu to the last (empty) workspace in the right bar. " every try to drop the app on the last empty workspace it start on the fist workspace.
- ↑ Test Faied : 6 - Drag the icon for a non-running application from the Dash or Applications menu to the last (empty) workspace in the right bar.
- ↑ Tests failed : 3 - Drag few icons of non-running applications from the Applications menu in the Overview to the last (empty) workspace, thus creating workspace for each application. 4 - Try moving various running applications between workspaces by dragging their miniatures in the workspace bar. Group some applications together in the same desktop.
- ↑ I could not configure touchpad until I removed the /etc/X11/xorg.conf.d/99-synaptics-{cinnamon,mate}.conf files which overrides libinput as default.
- ↑ RHBZ #1384440 Dragging a non-running app from the Dash to a new empty workspace opens the app on the current workspace, and it then creates a new workspace and almost immediately removes the new workspace. The instructions also need updating because you cannot drag an app from the Show Applications menu to a workspace (the workspaces are hidden).
- ↑ Press and hold gesture using the touchscreen not working on files/nautilus, context menu (right click) not showing. Firefox: Several touchscreen gestures not supported. Can't close it with a touchscreen.
- ↑ during setup in Boxes under F23, the screen flickers every second or two, including through and after a setup with Anaconda. Accessing the hotspot in upper left hand corner to bring up the activities page flashes and returns immediately to the desktop. Clicking on any of the icons in the dock is not possible since the refresh is too quick. Same with trying to type in a command to get a terminal.
- ↑ during setup in Boxes under F23, the screen flickers every second or two, including through and after a setup with Anaconda. Accessing the hotspot in upper left hand corner to bring up the activities page flashes and returns immediately to the desktop. Clicking on any of the icons in the dock is not possible since the refresh is too quick. Same with trying to type in a command to get a terminal.
- ↑ during setup in Boxes under F23, the screen flickers every second or two, including through and after a setup with Anaconda. Accessing the hotspot in upper left hand corner to bring up the activities page flashes and returns immediately to the desktop. Clicking on any of the icons in the dock is not possible since the refresh is too quick. Same with trying to type in a command to get a terminal.
- ↑ every thing work fine, but when I pointing mouse to the left edge it did not work (i think because i use vmware), work fine when pressing [win] or Alt+F1, later clicking on activities back to work normally.
- ↑ gnome-calculator appears in one location then snaps to another when launched with
GDK_BACKEND=wayland, Shotwell's welcome window displays a similar behavior. - ↑ Dragging a non-running application from the Dash to a non-current workspace in the workspace bar results in the application launching in the current workspace, not the non-current workspace the application was dragged to; an additional empty workspace is created if the workspace the icon is dragged to is empty, but the application is not launched there, resulting in two empty workspaces. After the application launches and it appears in the overview, the 'selection' borders that appear when mousing over applications in the overview are no longer positioned correctly.
- ↑ Dragging a Dash icon for a non-running application to a non-active workspace launches the application in the current workspace, not the non-active workspace the icon was dragged to. An empty workspace is created which appears to be the correct behavior.
- ↑ GDK_BACKEND=x11 gnome-terminal
Error: Message recipient disconnected from message bus without replying
- Open and instantly close
- The "About" windows does a bump when appear
- Success
- When opening "About" dialogue
- Success
- When opening "About" dialogue
- The "About" window does a bump when appear and does not appear in the center of the App
- The "About" window does a bump when appear
- The "About" & "Shortcuts" window does a bump when appear
- The App does not show/draw the "Zoom In / Zoom Out" buttons but it works if pushed in that location
- ↑ RHBZ #1384440 RHBZ #1384534 RHBZ #1384616 1) Dragging an icon from dash to workspace seems to (usually) open the application on the current workspace instead of the one selected 2) When opening an application by dragging from dock to workspace, often the outline of the application does not align with its placement
- ↑ 1. gnome-calculator with GDK_BACKEND=wayland starts at upper right corner, then snaps to the bottom of the terminal window from which I executed the command. 2. gnome-calculator mode drop down menu is flaky with GDK_BACKEND=x11. Sometimes the menu expands and sometimes it doesn't.
- ↑ RHBZ #1384440 Drag new application from Dash to specific workspace doesn't open the application to this workspace. Works on Workstation Live.
- ↑ RHBZ #1384440 Dragging the Dash icon for an application to a workspace indicator should launch the application in that workspace (or create a new window in that workspace, for running applications)
- ↑ In a dual monitor setup, workspaces only seem to work for display #1. extended display seems restricted to one workspace. not sure if this is intended.
- ↑ I used built-in touchscreen of my laptop. I could not close a window in overview by flicking. I couldn't close Firefox from cross with the touchscreen, but only with touchpad. Pinch or double tapping didn't work in Maps and I didn't try pictures because I didn't have any pictures in live session. All of the shell multitouch gestures work (3-finger pinch to open overview, 4-finger drag to change workspace and switching active application with the 3+1-finger tapping thingy). The touchpad actions work (scrolling, changing workspace). When dragging favorite applications in overview they stay selected looking when using touchscreen, but they are unselected (or look unselected) after dragging with touchpad (seems to be a bug).
- ↑ I did not test the file search because I didn't have any files in live session. For some reason the applications I open by dragging to a desktop in overview are a bit off from their place (the blue outline that appears when hovering is not where the application is). That is fixed when I reopen the overview. (a bug?)
- ↑ Opening new applications by dragging from Dash to last desktop opened them always on current desktop, but new desktops were created. Dragging applications created new desktops and dragging them out of (non-current) desktop destroyed the desktop. Closing the last application didn't close the second to last desktop. I marked this failed because this didn't work for most part. The test was done on the live image made for this test day.
- ↑ Adding new favorite doesn't work: - added new favorite with drag&drop: notification appeared that the application has been added to the favorites, but the icon disappears from drop location -> disappears - added new favorite with right click+add to favorites: notification appeared that the application has been added to the favorites, but the icon is not added, however a visual update seems to appear on the Dash, because it flickers once
- ↑ Add an application to a workspace: no existing instance of the application shall run and add it to an empty workspace by drag & drop result: application is launched and added to the specified workspace, but the selection frame around the application is misplaced by a significant offset
- ↑ RHBZ #1384036 Live Image booted, live user automatically logged on Desktop. Installation done successfully. Anyway, I wasn't able to run any application due to this bug
- ↑ RHBZ #1384036 Blinking (approximately 2x per second) of the session closes the Activities each time and I'm not able to open any application
- ↑ RHBZ #1384537 RHBZ #1384546 RHBZ #1330034 - Icon bug, unsure if it's a Gnome software issue or a gnome-shell issue - Removing application (in this case workrave) does not bring back the install icon immediately - going back to overview and selecting the app again does, though - Ended up running into a calibre/QT bug :D - Uhm. I couldn't find the software sources at all. Where exactly is this supposed to be? :(
- ↑ RHBZ #1384572 - Issues on secondary monitor similar to weather - Stopwatch is centered correctly, the right hand side margin is to show laps
- ↑ I also ran into the issue that gnome-software doesn't seem to remember window dimensions as I have to shrink the window down to a reasonable size on each launch, which is bothersome.
- ↑ The gnome-software window does not seem to get matched to the .desktop file correctly (or something): The application icon and name in the top bar and in the dash left dock are missing / "gnome-software" instead of the software icon and "Software". There is also no underline below Software in the "All applications" tab. This also renders it impossible to access the application menu (to get to software sources, for example)
- ↑ The map widget content is turned to grey (window background?) on activating the gnome shell activities overview. Additionally, the zoom buttons in the upper right corner are only visible then, but invisible during "normal" operation.
- ↑ When changing to "Repeat song", it doesn't apply correctly to the currently playing title but only to the one after it. Additionally, all animations within the app are running at about 2-3 FPS - which looks hideous.
- ↑ Trying to install google-chrome using the rpm file from google with gnome-software doesn't work, no visible feedback after clicking blue "Install" button.
- ↑ Weather lists a lot of cities multiple times (for example cologne) without any visual distinction which one to choose. Some cities aren't found at all (but are available in the world clock app), would be nice if it automatically would select a nearby city.
- ↑ 2.-GDK_BACKEND=wayland gnome-maps
- The "About" & "Shortcuts" window does a bump when appear
- The App does not show/draw the "Zoom In / Zoom Out" buttons but it works if pushed in that location
- ↑ Oh, OK, this might be because the FS is read-only (running in a livecd-VM). But no feedback was provided that the operation did not work...
- ↑ RHBZ #1384590 Searching in the overview does not find it. I would expect gnome-software to suggest gnome-photos for "photos" search. "gnome photos" does find it.
- ↑ When using Firefox, if one tries to use "Alt - tab" to switch between windows, the Firefox menus are also activated. Should this be happening?
- ↑ Opening folders in nautilus is kinda slow compared to on X11, expecially empty folders (drawing the background image seems slow). Also, breadcrumb and sidebar entries / bookmarks animations are SLOOOOW (1-2 FPS) ...
- ↑ Screenshooting (the GNOME built-in) doesn't work (at least on multimonitor setups), it only captures a small part of the screen, the rest is empty.
- ↑ Added a cups printer to the Printer Setup and it seems to have succeeded. But everytime the Printer Setup is clicked on, it crashes the entire "All Settings" dialog box. However, when printing was initiated from an application (like FF) it succeeded.
- ↑ ssh'ed into the VM (ssh -YC4 192.168.122.127) and tried to start gnome-terminal and it failed. "Error constructing proxy for org.gnome.Terminal:/org/gnome/Terminal/Factory0: Error calling StartServiceByName for org.gnome.Terminal: Timeout was reached"
- ↑ 1-Plank does not work x11/wayland
2-When open Nautilus/Terminal the App keeps loading for about ~13 seconds
3-Shaky box when I press FN+brightness+- & FN+Sound+- when in >%60 (I liked it)
4-GDK_BACKEND=wayland gnome-tweak-tool
- When opening "About" dialogue
- The "About" window does a bump when appear and does not appear in the center of the App
- ↑ 2 monitor setup: laptop's display (left screen) + external monitor connected to D-Sub (right screen). When moving the mouse from right screen to left screen, there is a flickering on the top left corned of the right screen. The flickering area cover like 1/5 area of the right screen,
- ↑ In gnome-system-monitor it's not possible to switch to Resources or File Systems tab. While trying to switch, the content of that tab is displayed but immediately the Processes tab is showed again. The whole switching appears as a flickering.