For the M and later, the driver will automatically size its memory allocation according to the features it will support. This slows down all rendering, and historically has been the source of many GPU hangs. Option “CacheLines” ” integer ” This allows the user to change the amount of graphics memory used for 2D acceleration and video when XAA acceleration is enabled. Mailing lists are also commonly used to report experiences and ask questions about configuration and other topics. Org and driver related questions. Some rendering commands have the option to be performed in a “tear-free” fashion by stalling the GPU to wait for the display to be outside of the region to be updated.

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Valid values are 6 and 7.

It is a Boolean attribute with values of 0 never sync or 1 always sync. On some platforms the hardware can scanout directly into a rotated output bypassing the intermediate rendering and extra allocations required for software implemented rotation i. Associating Monitor sections with ubunt output can be helpful if you need to ignore a specific output, for example, or statically configure an extended desktop monitor layout.

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Option “Virtualheads” ” integer ” This option controls specifies the number of fake outputs to create in addition to the normal outputs detected on your hardware. Enabled Option “AccelMethod” ” string ” Select acceleration method. It is provided for compatibility with most other drivers. But the displayed image may be distorted by stretching either horizontally or vertically, and pixels may not be displayed one-to-one there may be some blurriness. See the output of xrandr –prop for a list of currently available scaling modes.


intel-vaapi-driver source package in Bionic

This option forces X to perform all rendering to a backbuffer prior to updating the actual display. Now you need to download the installer deb package for your architecture or bits from here. Post as a guest Name.

Most recent Intel chips have two CRTCs, meaning that two separate framebuffers can be displayed simultaneously, in an extended desktop configuration. CRTC can be manually assigned to individual heads by preceding the output names with a comma delimited list of pipe numbers followed by a colon.

For the M and later, the driver will automatically size its memory allocation according to the features it will support. User should provide absolute path to libIntelXvMC. These include Center Simply center the image on-screen without scaling.

By default, each head is assigned only one CRTC which limits using multiple outputs with that head to cloned mode. Textured video support for G and later chips, RandR 1.

Ubuntu Manpage: intel – Intel integrated graphics chipsets

Home Questions Tags Users Unanswered. You can use the “xrandr” tool, or various desktop utilities, to change your output configuration at runtime. Also note that not all compositing managers prevent tearing, and if the outputs are rotated, there will still be tearing without TearFree enabled.


Option “FallbackDebug” ” boolean ” Enable printing of debugging information on acceleration fallbacks to the server log.

Pixels may not be displayed one-to-one there may be some blurriness. The options with the same name can also be set in xorg.

Graphics Drivers for Linux*

You can use the ubunut tool to control outputs on the command line as follows: TV Integrated TV output. Sign up using Email and Password. This section only covers configuration details specific to this driver. Until that process is complete, the ability to choose which backend to use remains for backwards compatibility. Sign up using Facebook.

Lid status support added by Alan Hourihane. Higher values may give better 3D performance, at expense of available system memory.

Thus enabling TearFree requires more memory and is slower reduced throughput and introduces a small amount of output latency, but it should not impact input latency.

A tiled framebuffer is required for power conservation features, but for certain system configurations ubyntu may wish to override this and force a linear layout. The effect of such missed swaps is the output jitters between 60fps and 30fps, ubunu in the worst case appears frame-locked to 30fps.