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65 lines
1.9 KiB
Markdown
65 lines
1.9 KiB
Markdown
## Dual Steam Accounts (same PC, two monitors)
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Runs a second Steam instance as `player2` on HDMI-0, alongside your main session on DP-0.
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Both accounts play simultaneously with full GPU acceleration — no VT switching needed.
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### One-time setup (fresh install)
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**1. Create the player2 user:**
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```bash
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sudo useradd -m -G audio,video,input -s /bin/bash player2
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sudo passwd player2
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```
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**2. Install dependencies:**
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```bash
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sudo pacman -S xorg-xhost
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```
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**3. Add passwordless sudoers rule** (allows launching Steam as player2 without a prompt):
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```bash
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echo "kuhy ALL=(player2) NOPASSWD: /usr/bin/steam" | sudo tee /etc/sudoers.d/player2-steam
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sudo chmod 440 /etc/sudoers.d/player2-steam
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```
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**4. Symlink the script into PATH:**
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```bash
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sudo ln -sf ~/testsAndMisc/linux_configuration/scripts/gaming/start-player2.sh /usr/local/bin/start-player2
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```
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**5. Start the getty on tty2** (needed if LightDM autologin is configured, otherwise tty2 has no login prompt):
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```bash
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sudo systemctl enable getty@tty2
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```
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### Usage
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```bash
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start-player2
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```
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A Steam window opens as `player2`. Drag it to HDMI-0 and log into the second account.
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Click whichever monitor you want to control — no switching needed.
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To stop: close the Steam window or `pkill -u player2 -f steam`.
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### How it works
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- Steam is launched as `player2` via `sudo -H -u player2 steam` on `DISPLAY=:0` (your main X session).
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- Because `player2` has a separate home directory (`~/.local/share/Steam/`), the two Steam
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instances don't conflict — different PID locks, different configs, different accounts.
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- `xhost +local:` grants local users access to your X display.
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- Full GPU acceleration since there is no nesting — both instances hit the hardware directly.
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### Monitor layout
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| Output | Resolution | Session |
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| ------ | ---------- | ----------- |
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| DP-0 | 3840×2160 | kuhy (main) |
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| HDMI-0 | 2560×1440 | player2 |
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