System Freeze at Login – 3 monitors setup + Ryzen 9 9900X / Radeon 7900XTX
Specs:
CPU: AMD Ryzen 9 9900X
GPU: AMD Radeon RX 7900XTX
OS: Bazzite latest kernel 6.15.4 -- Did not have issues on 6.14.6 (the one before)
Issue: System consistently freezes during or immediately after user login. The desktop environment sometimes loads briefly, but the system becomes completely unresponsive (black screen or frozen UI requiring hard reboot). No input devices respond, and no error messages are shown.
Troubleshooting attempted:
-Disable iGPU in BIOS
-Confirmed using Wayland Some users found Wayland more stable than X11 with Plasma or Gnome
-Latest bazzite updates MESA/Kernel
-Disable fTPM in BIOS
-Tried to reinstall bazzite - it eventually end up with the CTRL+D screen after many reboots from bios settings troubleshooting
Would love guidance from anyone with similar high-end AMD builds or Bazzite-specific GPU fixes. I do remember trying Nobara when it was under 6.15.3 kernel and it worked. I cant tell why or was changed.
Sadly, after rebooting many times, I got the error message where I had to CTRL+D or enter to continue and was stuck there. I did lose access to my main OS without any data lost beside some game saves.
CPU: AMD Ryzen 9 9900X
GPU: AMD Radeon RX 7900XTX
OS: Bazzite latest kernel 6.15.4 -- Did not have issues on 6.14.6 (the one before)
Issue: System consistently freezes during or immediately after user login. The desktop environment sometimes loads briefly, but the system becomes completely unresponsive (black screen or frozen UI requiring hard reboot). No input devices respond, and no error messages are shown.
Troubleshooting attempted:
-Disable iGPU in BIOS
-Confirmed using Wayland Some users found Wayland more stable than X11 with Plasma or Gnome
-Latest bazzite updates MESA/Kernel
-Disable fTPM in BIOS
-Tried to reinstall bazzite - it eventually end up with the CTRL+D screen after many reboots from bios settings troubleshooting
Would love guidance from anyone with similar high-end AMD builds or Bazzite-specific GPU fixes. I do remember trying Nobara when it was under 6.15.3 kernel and it worked. I cant tell why or was changed.
Sadly, after rebooting many times, I got the error message where I had to CTRL+D or enter to continue and was stuck there. I did lose access to my main OS without any data lost beside some game saves.
Solution
AFter almost giving up completely, I discovered the main issue with the newest kernel 6.15.4 (same with 6.15.5 with Nobara). I was using 3 monitors (1 main 165 hz, 2 other for static displays).
All the monitors were plugged into the GPU (HDMI, Displayportx2).
1) I did re-enabled everything in the bios, iGPU, fTPM, etc.
2) I did plug my main monitor displayport (UW 1440p, 165hz) in to my 7900XTX GPU.
3) I did plug my other monitors into the motherboard display connectivity directly, I had one HDMI and many thunderbolts D available for that.
4) Worked.
5) Locking screen will shut the monitors correctly now, I had issues with the HDMI monitor into the GPU under kernel 6.14.6, it was waking up all the time after going black for 1 sec.
6) Bazzite performance is wild, solid 20% fps increase over Windows 11 and even sometimes 30%. Now will this gap be reached with windows 11 releases 25H2 in september, maybe, well see! For now, bazzite is the clear winner with my AMD desktop.
I never suspected that this new kernel would cause issues with multiple monitors plugged into my GPU, lesson learned
All the monitors were plugged into the GPU (HDMI, Displayportx2).
1) I did re-enabled everything in the bios, iGPU, fTPM, etc.
2) I did plug my main monitor displayport (UW 1440p, 165hz) in to my 7900XTX GPU.
3) I did plug my other monitors into the motherboard display connectivity directly, I had one HDMI and many thunderbolts D available for that.
4) Worked.
5) Locking screen will shut the monitors correctly now, I had issues with the HDMI monitor into the GPU under kernel 6.14.6, it was waking up all the time after going black for 1 sec.
6) Bazzite performance is wild, solid 20% fps increase over Windows 11 and even sometimes 30%. Now will this gap be reached with windows 11 releases 25H2 in september, maybe, well see! For now, bazzite is the clear winner with my AMD desktop.
I never suspected that this new kernel would cause issues with multiple monitors plugged into my GPU, lesson learned
