Low performance on Lenovo C13 3500C

Bug Reports altOS Bugs
1

Already reported this in the discord, but putting it here for a more permanent record.
Basically, the GPU isn’t clocking over 200mhz unless you set it manually.

  • I haven’t tested additional distros, but I’m on Arch running Gnome.
  • Someone suggested I use CoreCtrl to set performance, but setting fixed high performance crashes the laptop.
  • Manually setting clocks to max out at 1150 is the current solution I’m running with.
2

This is for the C13 Yoga, yes?
I’ve only tested Fedora 39 Cinnamon here so far on this. I’m not on the discord but I’m here on the forum- what are you using to record the GPU clock issues? Radeontop?

3

May I ask how you were checking the iGPU clocks? I’d like to do some testing on mine as well.

4

try updating your coreboot

5

Ah, sorry for the late reply. Don’t check forums that often.

I was using CoreCtrl to change and get a general idea of where clocks were at.

I’ll try updating coreboot - did it work for you?

6

I haven’t updated my coreboot in a bit, due to the trackpoint being enabled on my older build, as imho the C13 Yoga trackpoint is superior to a trackpad experience:

# dmidecode 3.5
Getting SMBIOS data from sysfs.
SMBIOS 3.0.0 present.

Handle 0x0000, DMI type 0, 26 bytes
BIOS Information
        Vendor: coreboot
        Version: MrChromebox-4.21.1-3-g233da37753d-dirty
        Release Date: 11/24/2023
        ROM Size: 16 MB
        Characteristics:
                PCI is supported
                PC Card (PCMCIA) is supported
                BIOS is upgradeable
                Selectable boot is supported
                ACPI is supported
                Targeted content distribution is supported
        BIOS Revision: 4.21
        Firmware Revision: 0.0

But I also haven’t had any video playback or Risk of Rain Returns issues on this machine.
Also currently running openSUSE but I can throw Fedora or another distro back on here to do further testing if you would like.

7

Oh, update, yeah, the trackpoint is working now and you shouldn’t see any performance hits:

	Vendor: coreboot
	Version: MrChromebox-4.22.0-6-g135ae7306d6
	Release Date: 01/08/2024