Black Screen with HDMI
I'm having an issue with Bazzite where my HDMI display is blank when loading into KDE. I can use ctrl+alt+F3 to access the terminal fine so the display out is working.
After some googling first, I found a suggestion to use a Display Port monitor (which is fine for testing in this situation but not good for a long term solution). I did test this and on reboot, I could access KDE just fine.
I plugged the HDMI monitor in as a second display and it was still blank. Going into the KDE display settings, the HDMI monitor was showing in there but had defaulted to 144hz. The refresh rate of that monitor is 60hz. I changed the setting and the monitor displayed fine.
I then powered down and disconnected the Display Port monitor and rebooted, only to find the same issue with no display on KDE.
I checked for a way to fix the refresh rate via the terminal and found a post suggesting to change the /etc/environment file. I have tried adding CUSTOM_REFRESH_RATES=60 but after a reboot I still have the same issue.
Does anyone have a suggestion on how to resolve this.
Machine spec:
AMD Ryzen 5 5600X
32GB RAM
Radeon 9060XT 16GB
Gigabyte ITX Motherboard
Solution:Jump to solution
Additional update to this. I tried another distro (Kubuntu 25.10) and surprisingly, had the same issue. I managed to switch that over in to x11 from Wayland and everything worked fine. Looks like this is actually a mesa/wayland issue. I will close this now as this is not a Bazzite specific issue.
2 Replies
So to add an update for this. The refresh rate thing was a red herring. I have managed to get it to boot correctly, but by setting the machine to auto-login using the following.
sudo nano /etc/sddm.conf
Uncommenting and setting the following under [Autologin]:
System now start but, as expected, logs directly in which is also un undesired outcome. Changing the settings back, as expected, causes the black screen again.Solution
Additional update to this. I tried another distro (Kubuntu 25.10) and surprisingly, had the same issue. I managed to switch that over in to x11 from Wayland and everything worked fine. Looks like this is actually a mesa/wayland issue. I will close this now as this is not a Bazzite specific issue.