Hello. I have a problem, my mobile ryzen 2500u is not boosting above 2.8ghz. Its maximum frequency is 3.6ghz. I have the cpufreq gnome extension, I use it to monitor the frequency. I tried to increase the tdp of the processor using the ryzen controller, but the frequency grew to 3.2 or 3.4 ghz for a second and then dropped back to 2.8. I want to clarify right away that the temperatures are normal, the processor does not overheat. Sorry for my English, i’m use a translator
I also have a Ryzen 5 2500U on my Dell Inspiron 5575. It boosts just fine. Keep in mind not all cores will boost at once.
What’s the output of:
sudo cpupower frequency-info
Here’s mine:
analyzing CPU 0:
driver: acpi-cpufreq
CPUs which run at the same hardware frequency: 0
CPUs which need to have their frequency coordinated by software: 0
maximum transition latency: Cannot determine or is not supported.
hardware limits: 1.60 GHz - 2.00 GHz
available frequency steps: 2.00 GHz, 1.70 GHz, 1.60 GHz
available cpufreq governors: conservative ondemand userspace powersave performance schedutil
current policy: frequency should be within 1.60 GHz and 2.00 GHz.
The governor "schedutil" may decide which speed to use
within this range.
current CPU frequency: 2.00 GHz (asserted by call to hardware)
boost state support:
Supported: no
Active: no
Boost States: 0
Total States: 3
Pstate-P0: 2000MHz
Pstate-P1: 1700MHz
Pstate-P2: 1600MHz
Not sure why it says Supported: no, because it is and works fine. 
Here’s my Ryzen 7 3700X output for comparison:
nalyzing CPU 0:
driver: acpi-cpufreq
CPUs which run at the same hardware frequency: 0
CPUs which need to have their frequency coordinated by software: 0
maximum transition latency: Cannot determine or is not supported.
hardware limits: 2.20 GHz - 4.43 GHz
available frequency steps: 3.60 GHz, 2.80 GHz, 2.20 GHz
available cpufreq governors: conservative ondemand userspace powersave performance schedutil
current policy: frequency should be within 2.20 GHz and 3.60 GHz.
The governor "schedutil" may decide which speed to use
within this range.
current CPU frequency: 2.20 GHz (asserted by call to hardware)
boost state support:
Supported: yes
Active: yes
Boost States: 0
Total States: 3
Pstate-P0: 3600MHz
Pstate-P1: 2800MHz
Pstate-P2: 2200MHz
I’m running the 5.17.3-1 kernel on both.
Same output
analyzing CPU 0:
driver: acpi-cpufreq
CPUs which run at the same hardware frequency: 0
CPUs which need to have their frequency coordinated by software: 0
maximum transition latency: Cannot determine or is not supported.
hardware limits: 1.60 GHz - 2.00 GHz
available frequency steps: 2.00 GHz, 1.70 GHz, 1.60 GHz
available cpufreq governors: conservative ondemand userspace powersave performance schedutil
current policy: frequency should be within 2.00 GHz and 2.00 GHz.
The governor "schedutil" may decide which speed to use
within this range.
current CPU frequency: 2.00 GHz (asserted by call to hardware)
boost state support:
Supported: no
Active: no
Boost States: 0
Total States: 3
Pstate-P0: 2000MHz
Pstate-P1: 1700MHz
Pstate-P2: 1600MHz
But the frequency does not rise above 2.79 ghz even under loads
this point that is not goes more than 2000Mhz
It can increase the frequency above 2000mhz, this is a cpupower bug
I noticed that after a reboot, the frequency rises to 3.4 ghz, but when I start the game, the frequency drops to 2.8ghz. No overheating, temperature stays around 65 degrees