Hi, openSUSE Tumbleweed here with KDE. I recently replaced the Nvidia Quadro K600 video card with an AMD RX550 video card in the machine. Issue is that when suspend is envoked there are lockups possibly 15 to 20 percent of the time. Then REISUB is used to complete the powercycle. For a couple weeks I had just left the Nvidia packages and Nvidia kernel boot parameters as they were after installing the rx550 and experienced a lockup during suspend 30 percent of the time. Now I purged the Nvidia packages and removed the Nvidia related kernel boot options and updated grub. Now I have been computing for about 3 weeks total with the RX550. inxi -Gayz output > https://paste.opensuse.org/pastes/b87ed48936da - lspci -k | grep -A 2 -E "(VGA|3D)" 01:00.0 VGA compatible controller: Advanced Micro Devices, Inc. [AMD/ATI] Lexa [Radeon 540X/550X/630 / RX 640 / E9171 MCM] (rev c1) Subsystem: Dell Device 1713 Kernel driver in use: amdgpu I have looked a bit into this for instance: passing eglinfo -B as user and not root gives a possible red herring error message > _amdgpu_device_initialize: amdgpu_query_info(ACCEL_WORKING) failed (-13) Really I do believe RX550 is creating the suspend issue somehow. As with the prior video card, suspend was still reliable. How can I troubleshoot this problem more correctly?