Differences

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--- doc:appunti:hardware:mini_pc_intel_pentium_j3710 [2026/02/22 18:33] – [Kernel 6.1] niccolo
+++ doc:appunti:hardware:mini_pc_intel_pentium_j3710 [2026/02/22 19:35] (current) – [Pygame] niccolo
@@ Line 77: / Line 77: @@
 ===== Blanking the Virtual Terminal =====
-When the host is started in frame buffer text console, the **setterm** command can be used to force the screen to go blank (the monitor torns off due no signal):
+When the host is started in frame buffer text console, the **setterm** command can be used to force the screen to go blank:
 <code>
@@ Line 83: / Line 83: @@
 setterm --powerdown 0
 </code>
+The monitor turns off due no signal and remains blank even keys are pressed on the keyboard.
 To revive the screen:
@@ Line 90: / Line 92: @@
 setterm --powerdown 0
 </code>
+If the screen is blanked the following command returns **1**:
+<code>
+setterm --blank
+</code>
+===== Pygame =====
+We verified what driver uses the Pygame app:
+<code python>
+import pygame
+pygame.init()
+print(pygame.display.get_driver())
+</code>
+It says **KMSDRM**.
+Using that driver the SDL **Simple DirectMedia Layer** library owns the DRM master, external tools (modetest, sysfs) do not work for blanking the screen. The correct solution is to control this from inside SDL.