- #OPENGL 4.5 COMPLIANT VIDEO CARDS HOW TO#
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#OPENGL 4.5 COMPLIANT VIDEO CARDS SERIES#
The libva-intel-driver package only provides hardware accelerated MPEG-2 decoding – and not H.264 decoding – for some GMA 4500 series GPUs. Hardware accelerated H.264 decoding on GMA 4500 Note: This option currently does not work for external displays (e.g. Where param is one of "Full", "Center" or "Full aspect". $ xrandr -output LVDS1 -set "scaling mode" param
#OPENGL 4.5 COMPLIANT VIDEO CARDS FULL#
This can be useful for some full screen applications: You should load the i915 module early with early KMS. Sysctl: cannot stat /proc/sys/dev/i915/perf_stream_paranoid: No such file or directory If setting the value to 0 in a /etc/sysctl.d/*.conf file results in the following error at boot MESA-INTEL: warning: Performance support disabled, consider sysctl _stream_paranoid=0 Some applications have the following warning: etc/modprobe.d/nf options i915 fastboot=1 Intel GVT-g graphics virtualization support To force enable fastboot on platforms where it is not the default already, set i915.fastboot=1 as kernel parameter or set in /etc/modprobe.d/nf: The goal of Intel Fastboot is to preserve the frame-buffer as setup by the BIOS or bootloader to avoid any flickering until Xorg has started.
Note: This parameter is enabled by default for Skylake and newer as well as Bay- and Cherry-Trail (VLV/CHV) since Linux 5.1. It is however possible to configure more aggressive powersaving by using module options. You will note that many options default to -1, resulting in per-chip powersaving defaults. To check which options are currently enabled, run Some of the module options impact power saving.Ī list of all options along with short descriptions and default values can be generated with the following command: The i915 kernel module allows for configuration via module options. See the "AccelMethod" option under intel(4) § CONFIGURATION DETAILS. pixelated graphics, corrupt text, etc.), try using UXA instead, which can be done by adding the following line to your configuration file: If you experience issues with default SNA (e.g. You may need to indicate Option "AccelMethod" when creating a configuration file, the classical options are UXA, SNA (default) and BLT. Note: You might need to add more device sections than the one listed above. Enabling GuC/HuC firmware loading can cause issues on some systems disable it if you experience freezing (for example, after resuming from hibernation). CBR rate control on SKL low-power encoding mode) may require the use of an updated GPU firmware, which is loaded by default only on Gen 11+ hardware since Linux 5.4. On supported Skylake and newer processors, some video features (e.g.
#OPENGL 4.5 COMPLIANT VIDEO CARDS HOW TO#
Refer to Kernel mode setting#Early KMS start for instructions on how to enable KMS as soon as possible at the boot process.
#OPENGL 4.5 COMPLIANT VIDEO CARDS DRIVER#
Kernel mode setting (KMS) is supported by Intel chipsets that use the i915 DRM driver and is mandatory and enabled by default.
#OPENGL 4.5 COMPLIANT VIDEO CARDS INSTALL#