https://bugs.kde.org/show_bug.cgi?id=465733
--- Comment #12 from ston....@qq.com --- (In reply to Nate Graham from comment #11) > Investigated this today. 63de3d6f1716a6924fa5924b5a57af4abaa4460f does > indeed seem suspicious. > > Unfortunately I can't try Slack because it doesn't seem to show its main UI > after launch, just the tray icon. Console log says, "Error sending from > webFrameMain: Error: Render frame was disposed before WebFrameMain could be > accessed" > > I did manage to I did try with Discord (an Electron app running in XWayland > mode), 2 screens (one at 200% and one at 100%), and the "Legacy Applications > (X11): Apply scaling themselves" setting. I launched it using GUI methods. > No matter which screen Discord was launched on, it got the right scale > factor for me. > > I also tested with VSCode, and got a different result: When launched on the > 200% scale screen, it was drawn at 100% scale. When launched on the 100% > scale screen, it was all blurry, like it was actually being drawn at 50% and > upscaled. > > When I set the GDK_SCALE=1 environment variable and re-launched VS Code in > the terminal window that I set the envar in, it was drawn correctly. > Interestingly, when I tried the same trick with Discord, running it from > that same terminal window, it was only drawn correctly while GDK_SCALE=1 was > set. When I unset it, or ran `flatpak run com.discordapp.Discord` from a > terminal window where I hadn't set it, I got the same initial result as VS > Code: being drawn too small. > > So it seems like these apps do in fact need GTK_SCALE=1 to be set or else > they don't get launched with the right scale factor. The mystery is why that > envar manages to gets set for Discord when launched from a GUI method like > Kickoff or KRunner, but it doesn't happen for VS Code. I was able to confirm that after I set GDK_SCALE=1 the scaling of visual studio code and discord finally worked fine -- You are receiving this mail because: You are watching all bug changes.
