z13Profiler/README.md

z13Profiler

GUI profile switcher for ROG Flow Z13 (GZ302) unified memory on Nobara / Fedora.

Repository: git.hisora.dev/Dawnsorrow/z13Profiler

Switches between:

Profile	Fixed VRAM (carveout)	Dynamic GPU pool (TTM)
Gaming	8 GB	Kernel default (removes custom TTM)
LLM / AI	512 MB (minimum available)	48 GB
Reset	4 GB (ASUS default)	Kernel default

All changes require a reboot. The GUI warns and confirms before applying.

Quick install (Z13 / Nobara)

git clone https://git.hisora.dev/Dawnsorrow/z13Profiler.git
cd z13Profiler
./install.sh
z13-memory-profiles

One-liner (clone + install):

git clone https://git.hisora.dev/Dawnsorrow/z13Profiler.git /tmp/z13Profiler && /tmp/z13Profiler/install.sh

Dependencies (install first if missing):

sudo dnf install -y git zenity python3 polkit

Update from git

If installed from this repo, pull and re-run the installer:

cd ~/z13Profiler   # or wherever you cloned
git pull
./install.sh

Or update the installed copy directly:

cd ~/.local/share/z13-memory-profiles
git pull
./install.sh

Requirements

• ROG Flow Z13 2025 (GZ302), 64 GB RAM (defaults in config/profiles.conf)
• Nobara / Fedora with zenity, python3, polkit (pkexec)
• Root via pkexec when applying profiles

Optional: pipx install amd-debug-tools for standalone amd-ttm CLI.

Usage

GUI (Application menu → “Z13 Memory Profiles”, or terminal):

z13-memory-profiles
# alias after install:
z13profiler

Check current settings:

z13-memory-profiles --status

Apply from terminal (reboot manually after):

sudo z13-memory-profiles --apply gaming
sudo z13-memory-profiles --apply llm
sudo z13-memory-profiles --apply reset

Safeguards

• Refuses profiles that would leave less than 8 GB for the OS (configurable).
• Warns if TTM exceeds 90% of installed RAM.
• Only writes /etc/modprobe.d/ttm.conf and UMA sysfs index (no random kernel hacks).
• Uses pkexec for privileged operations from the GUI.

If fixed VRAM (carveout) does not change

Some setups do not expose /sys/class/drm/card0/device/uma/ yet. The tool still adjusts TTM for LLM mode. For gaming VRAM:

1. Boot Windows once → Armoury Crate → System Settings → Free up memory → set 8 GB → reboot.
2. Or update Nobara/kernel and re-check z13-memory-profiles --status.

Customizing for your RAM size

Edit ~/.local/share/z13-memory-profiles/config/profiles.conf after install:

[llm]
ttm_gb=48          # lower on 32 GB systems (e.g. 24)
min_os_reserve_gb=8

Uninstall

rm -f ~/.local/bin/z13-memory-profiles ~/.local/bin/z13profiler
rm -rf ~/.local/share/z13-memory-profiles
rm -f ~/.local/share/applications/z13-memory-profiles.desktop
sudo rm -f /etc/modprobe.d/ttm.conf
sudo dracut --force --regenerate-all 2>/dev/null || true

Then reboot.

Build tarball (optional)

./package.sh

Creates z13Profiler-1.0.0.tar.gz in the parent directory for USB transfer.