Call for testing: 4K displays and/or resolution scaling on X11 (especially AMD adapters)
Hi folks!
We have a proposed F32 blocker bug:
https://bugzilla.redhat.com/show_bug.cgi?id=1809717
which reports issues with 4K displays when using X11 (not Wayland). Initial indications suggest this may be specific to AMD graphics adapters: the reporter has an AMD adapter, and a couple of our team in Brno have been able to reproduce issues on an AMD adapter but not an Intel adapter. It's also suggested that the issue might actually be in display scaling (which is used on small high-resolution displays by default, hence the association with 4K, but can be enabled on any display for testing).
So, to help us figure out the shape of this bug, can we ask folks to test on whatever hardware you have available? The actual bug is that only 1/2 or 1/4 of the display is lit up, the rest of it is black, like in this image: https://bugzilla.redhat.com/attachment.cgi?id=1667282
1. Run a GNOME-on-Wayland session, and see if the bug happens: 1. a) out-of-the-box 1. b) with display scaling manually enabled if it was not auto-enabled (go to 'Displays' and change the 'Scale' setting to 200% if it is at 100% by default; you may have to log out and back in after changing the setting, not sure)
2. Run a GNOME-on-X11 session, and see if the bug happens: 2. a) out-of-the-box 2. b) with display scaling manually enabled if it was not auto-enabled (go to 'Displays' and change the 'Scale' setting to 200% if it is at 100% by default; you may have to log out and back in after changing the setting, not sure)
3. Run a KDE-on-X11 session, and see if the bug happens: 3. a) out-of-the-box 3. b) with display scaling manually enabled if it was not auto- enabled (go to 'Display Configuration' and change 'Global scale' to 200% , then log out and back in)
Please report back your results with info on the graphics card and display used for testing. If you do hit the bug, you can also add a comment to the bug report noting which configuration(s) produced the bug and including the same info on the graphics card and display used. Thanks very much!
Adam Williamson composed on 2020-03-23 17:16 (UTC-0700): ...
- Run a KDE-on-X11 session, and see if the bug happens:
- a) out-of-the-box
- b) with display scaling manually enabled if it was not auto-
enabled (go to 'Display Configuration' and change 'Global scale' to 200% , then log out and back in)
I attempted to use systemsettings5 to enable scaling, but got this apparent dependency failure instead:
# inxi -SGxx System: Host: g5eas Kernel: 5.4.20-200.fc31.x86_64 x86_64 bits: 64 compiler: gcc v: 9.2.1 Desktop: KDE Plasma 5.18.3 tk: Qt 5.13.2 wm: kwin_x11 dm: KDM Distro: Fedora release 32 (Thirty Two) Graphics: Device-1: NVIDIA G98 [GeForce 8400 GS Rev. 2] vendor: PNY driver: nouveau v: kernel bus ID: 0b:00.0 chip ID: 10de:06e4 Display: server: Fedora Project X.org 1.20.6 driver: modesetting unloaded: fbdev,vesa compositor: kwin_x11 resolution: 2560x1440~60Hz OpenGL: renderer: NV98 v: 3.3 Mesa 20.0.1 direct render: Yes # rpm -qa | grep systemse plasma-systemsettings-5.18.3-1.fc32.x86_64 # systemsettings5 Couldn't load plugin: "The shared library was not found." Accessed invalid KPluginInfo object Aborted (core dumped) #
Felix Miata composed on 2020-03-23 20:58 (UTC-0400):
Adam Williamson composed on 2020-03-23 17:16 (UTC-0700): ...
- Run a KDE-on-X11 session, and see if the bug happens:
- a) out-of-the-box
- b) with display scaling manually enabled if it was not auto-
enabled (go to 'Display Configuration' and change 'Global scale' to 200% , then log out and back in)
I attempted to use systemsettings5 to enable scaling, but got this apparent dependency failure instead:
# inxi -SGxx System: Host: g5eas Kernel: 5.4.20-200.fc31.x86_64 x86_64 bits: 64 compiler: gcc v: 9.2.1 Desktop: KDE Plasma 5.18.3 tk: Qt 5.13.2 wm: kwin_x11 dm: KDM Distro: Fedora release 32 (Thirty Two) Graphics: Device-1: NVIDIA G98 [GeForce 8400 GS Rev. 2] vendor: PNY driver: nouveau v: kernel bus ID: 0b:00.0 chip ID: 10de:06e4 Display: server: Fedora Project X.org 1.20.6 driver: modesetting unloaded: fbdev,vesa compositor: kwin_x11 resolution: 2560x1440~60Hz OpenGL: renderer: NV98 v: 3.3 Mesa 20.0.1 direct render: Yes # rpm -qa | grep systemse plasma-systemsettings-5.18.3-1.fc32.x86_64 # systemsettings5 Couldn't load plugin: "The shared library was not found." Accessed invalid KPluginInfo object Aborted (core dumped) #
On another PC, no coredump, and not reproducible on F32/Plasma/2560x1442 using HD8570 Radeon: http://fm.no-ip.com/SS/KDE/b1809717-192-1.jpg
I attempted to use systemsettings5 to enable display scaling, but got these apparent dependency failures instead:
# inxi -SGxx System: Host: g5eas Kernel: 5.4.20-200.fc31.x86_64 x86_64 bits: 64 compiler: gcc v: 9.2.1 Desktop: KDE Plasma 5.18.3 tk: Qt 5.13.2 wm: kwin_x11 dm: KDM Distro: Fedora release 32 (Thirty Two) Graphics: Device-1: NVIDIA G98 [GeForce 8400 GS Rev. 2] vendor: PNY driver: nouveau v: kernel bus ID: 0b:00.0 chip ID: 10de:06e4 Display: server: Fedora Project X.org 1.20.6 driver: modesetting unloaded: fbdev,vesa compositor: kwin_x11 resolution: 2560x1440~60Hz OpenGL: renderer: NV98 v: 3.3 Mesa 20.0.1 direct render: Yes # rpm -qa | grep systemse plasma-systemsettings-5.18.3-1.fc32.x86_64 # systemsettings5 Couldn't load plugin: "The shared library was not found." Accessed invalid KPluginInfo object Aborted (core dumped) #
# rpmqa systemsettings plasma-systemsettings-5.18.3-1.fc32.x86_64 # inxi -SGxx System: Host: big31 Kernel: 5.5.6-201.fc31.x86_64 x86_64 bits: 64 compiler: gcc v: 9.2.1 Desktop: KDE Plasma 5.18.3 tk: Qt 5.13.2 wm: kwin_x11 dm: KDM Distro: Fedora release 32 (Thirty Two) Graphics: Device-1: Advanced Micro Devices [AMD/ATI] RV620 PRO [Radeon HD 3470] vendor: Dell driver: radeon v: kernel bus ID: 01:00.0 chip ID: 1002:95c0 Display: server: Fedora Project X.org 1.20.6 driver: modesetting unloaded: fbdev,vesa alternate: ati compositor: kwin_x11 resolution: 2560x1440~60Hz OpenGL: renderer: AMD RV620 (DRM 2.50.0 / 5.5.6-201.fc31.x86_64 LLVM 10.0.0) v: 3.3 Mesa 20.0.1 compat-v: 3.0 direct render: Yes # systemsettings5 Couldn't load plugin: "The shared library was not found." Accessed invalid KPluginInfo object Aborted (core dumped) # http://fm.no-ip.com/Tmp/Linux/F/core.systemsettings5-big31F32.lz4 # rpm -qa | grep lugin dnf-plugins-core-4.0.14-1.fc32.noarch gstreamer1-plugins-bad-free-1.16.2-2.fc32.x86_64 gstreamer1-plugins-base-1.16.2-2.fc32.x86_64 gstreamer1-plugins-good-1.16.2-2.fc32.x86_64 kde-platform-plugin-4.11.22-27.fc32.x86_64 kf5-kipi-plugins-5.9.1-4.fc32.x86_64 kf5-kipi-plugins-libs-5.9.1-4.fc32.x86_64 kgreeter-plugins-4.11.22-27.fc32.x86_64 python3-dnf-plugins-core-4.0.14-1.fc32.noarch python3-dnf-plugins-extras-common-4.0.9-5.fc32.noarch python3-dnf-plugin-system-upgrade-4.0.9-5.fc32.noarch python3-dnf-plugin-versionlock-4.0.14-1.fc32.noarch rpm-plugin-selinux-4.15.1-2.fc32.1.x86_64 rpm-plugin-systemd-inhibit-4.15.1-2.fc32.1.x86_64 signon-plugin-oauth2-0.22-12.fc32.x86_64
On a third PC, this doesn't reproduce. How can I find out what is needed that hasn't been installed?
-
Adam Williamson -
Felix Miata