blank screen with Radeon RX 5500/5500M / Pro 5500M] and dynamic power management level to auto
Brief summary of the problem:
I have been using Linux in my Macbook pro 16,1 for more than a year with the linux T2 Kernel modules. From the beginning I had issues with my Amd GPU and the DMP to default(auto). I managed to find a workaround to changing the level to low at boot time. I do this adding a kernel rule:
KERNEL=="card0", SUBSYSTEM=="drm", DRIVERS=="amdgpu", ATTR{device/power_dpm_force_performance_level}="low"
I know there are users with similar models in RX5XXX that they don't have this issue.
Unfortunately, is hard reproduce but mostly every time there is a resolution change like when the session starts or ends, I can get a blank screen in my laptop monitor.
I was hoping that the issue will go away with new kernel versions but still with latest 6.7.x I got the issue.
I think is worth to mention here. I'm wondering if this model is missing some fixes.
Regards Galder
Hardware description:
lspci -nn | grep VGA
03:00.0 VGA compatible controller [0300]: Advanced Micro Devices, Inc. [AMD/ATI] Navi 14 [Radeon RX 5500/5500M / Pro 5500M] [1002:7340] (rev 40)
04:00.1 Non-VGA unclassified device [0000]: Apple Inc. T2 Bridge Controller [106b:1801] (rev 01)
04:00.2 Non-VGA unclassified device [0000]: Apple Inc. T2 Secure Enclave Processor [106b:1802] (rev 01)
eDP connected 1920x1200+1920+0 (normal left inverted right x axis y axis) 345mm x 215mm
3072x1920 60.00 +
1920x1200 60.00*
1920x1080 60.00
1600x1200 60.00
1680x1050 60.00
1280x1024 60.00
1440x900 60.00
1280x800 60.00
1280x720 60.00
1024x768 60.00
800x600 60.00
640x480 60.00
System information:
Kubuntu 23.10 Linux kernel 6.7.2