October 29, 2019 By admin

Only valid on PowerPC. Enable this option to ignore lid status on laptops and always detect LVDS as attached. If this is the case you can override the value here. This may affect performance slightly. This can help reduce heat and increase battery life by reducing power usage at the expense of performance.

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The output name is the RandR output name, e. Viideo can help reduce heat and increase battery life by reducing power usage at the expense of performance. This is different from NoDDC option. Enable this option to force TV-out to always be detected as attached. This will increase performance but not work correctly in some rare cases, hence the default is off. This attribute is useful for things like clone mode where the user can best decide which display should be synced.


Note that when enabled, this option can adversely affect the framerate of applications that render frames at less than refresh rate. Enables or disables all hardware acceleration. Check the version of Ubuntu you have installed: TV-out is experimental and may not function on these chips as well as hoped for. This option will force probing of the current value programmed in the chip when X is launched in that case.


It ari tearing at the cost of performance and has been known to cause instability on some chips. Make sure your OpenGL renderer string does not say “software rasterizer” or “llvmpipe” because that would mean you have no 3D hardware acceleration: To know which version of the Linux kernel you have installed, type this text in a terminal window: Chipset Graphics cards and APUs Color tiling will be automatically disabled in interlaced or doublescan screen modes.

Chooses between available acceleration architectures.

Use this if the calculation is not correct for your card. Option “ForceLowPowerMode” ” boolean “. This should greatly help power consumption, especially when idle.

This is only useful wti LVDS panels laptop internal panels. The default is EXA. Used to specify Mac models for connector tables and quirks. HDMI audio should work automatically.

The default value is 0x1E. Accepted values range from todivisible by Option “DisplayPriority” ” string “. This driver provides 2D and 3D acceleration in your video hardware. Option “IgnoreLidStatus” ” boolean “.


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Unsupported chips Ubuntu Should only be used when driver cannot detect the correct panel size. If disabled, no scanline synchronization is performed, meaning tearing will likely occur. Identifying your graphics card or APU First, check your graphic card name and chipset: Supported, but hardware is too old for Unity These cards will not run Ubuntu’s Unity desktop with 3D acceleration.

EXA is a newer acceleration architecture with better performance for the Render and Composite extensions. This option allows us to override the heuristic.