How To Enable Hardware Acceleration ... - Linux Uprising Blog

This article explains how to enable hardware acceleration in Chromium browser running on Raspberry Pi OS (for Raspberry Pi 4). AboutSubmitATip LinuxUprisingblogHomeHowToEnableHardwareAccelerationInChromiumOnRaspberryPiOS(RPi4) Logix  Updatedon2021-06-08T11:02:02Z chromium, how-to, raspberrypi, videoThisarticleexplainshowtoenablehardwareaccelerationinChromiumbrowserrunningonRaspberryPiOS(forRaspberryPi4). ByenablingGPUacceleration,theCPUusageshouldbemuchlowerwhenplayingsupportedvideos(forexampleonYouTube).Inmycase,usingaRaspberryPi4ModelB,themainChromiumgpuandrendererprocesseswentdownfrom~160%and~130%tounder~30%and23%CPUusage(accordingtohtop)afterenablinghardwareacceleration.Asasidenote,thisisaprerequisiteforanarticleIplanonwritingsoon.RaspberryPiOScomeswitheverythingthat'sneededtorunChromiumwithhardwareaccelerationonaRaspberryPi4,butitdoesn'tworkoutofthebox.ForRaspberryPi4there'snoneedtoinstallextrapackages,enableOpenGL,andsoon,asthosearealreadyenabled.You'llonlyneedtoenablesomeChromiumbrowserflags;belowthere'salsoa"fix"forscreentearingwhichoccurswhenplayinghardware-acceleratedfullscreenvideos.I'vetestedthisusingaRaspberryPi4ModelB(usingRaspberryPiOS),soIcanonlyconfirmthisisworkingforit. Accordingto this,youmayneedtoenableOpenGLwithfake/fullKMSusingraspi-configforolderRaspberryPimodels(I'mnotsureifextrastepsarerequiredonoldermodels).Thisisn'trequiredfortheRaspberryPi4. However,sinceIcanonlytestthisonaRaspberryPi4ModelB,andIdon'tliketowritearticlesaboutthingsIcan'ttestmyself,I'monlyfocusingonRaspberryPi4andinstructionsforitinthisarticle.EnablehardwareaccelerationinChromiumbrowserrunningonRaspberryPiOS(RaspberryPi4)ToenablehardwareaccelerationinChromiumbrowserrunningonRaspberryPiOS(RaspberryPi4),followthe3steps(well,morelike2.5)below: 1.EnablehardwareaccelerationinChromiumbrowser.Enablethefollowingflagsinchrome://flags:Overridesoftwarerenderinglist:chrome://flags/#ignore-gpu-blocklistHardware-acceleratedvideodecodechrome://flags/#enable-accelerated-video-decodeGPUrasterization: chrome://flags/#enable-gpu-rasterizationRestartChromiumwhenyou'redone.2.Ensurethattheh264ifyChromiumextensionisenabled.ChromiumonRaspberryPiOScomeswithuBlockOriginandh264ifyextensionsinstalledbydefault.Makesurethath264ifyisenabled,soYouTubeusesh264-encodedvideosforwhichtheRaspberryPisupportshardware-acceleratedvideodecode.3.Optional:Fixfull-screenvideotearing.Tofixfull-screenvideotearing(fixvia),we'llneedtodisablethecompositor.Todothis,openaterminalontheRaspberryPi,andrunthefollowingcommandtoruntheconsoleversionoftheRaspberryPiSoftwareConfigurationTool:sudoraspi-configUsethe Up / Down arrowkeystonavigatethroughitsmenu,and Tab toselectbuttonslike Finish, OK or Back.Todisablethecompositor,gotoAdvancedOptions->CompositorandchooseNotodisableit.Whenyou'redone,choose Finish andrebootyoursystem.That'sit.YourChromiumwebbrowsershouldnowbehardwareaccelerated,andbeabletoperformhardware-acceleratedvideodecode.Related: HowToEnableHardwareAcceleratedVideoDecodeInGoogleChrome,Brave,VivaldiAndOperaBrowsersOnDebian,UbuntuOrLinuxMintHowtocheckifChromiumbrowserishardwareacceleratedTocheckifChromiumbrowseruseshardwareacceleration,visit chrome://gpu inChromium:Ifhardwareaccelerationisenabled,  itshouldshowallthehardwareacceleration-relatedfieldsingreen.Thisishowitusedtolookbeforeenablingtheflagsmentionedabove(sointhescreenshotbelow,hardwareaccelerationisnotenabled):Tocheckoutifhardware-acceleratedvideodecodingisworkinginChromium,playaYouTubevideo,thenpressCtrl+Shift+iwhichwillopentheChromeDevTools.Next,clickthe3verticaldotsmenufromtheupperright-handsideofChromeDevToolsandchooseMoretools->Media:InthenewMedia DevToolstab,clicktheYouTubevideoontheleft(underPlayers),thenmakesurethePropertiessub-tabisselected,andscrolldowntotheVideoDecodersection.WithChromium88+onRaspberryPiOS,theDecodername valueshouldbeMojoVideoDecoderifhardwareacceleratedvideodecodeisenabledandworking.UpuntilChromium86(I'mnotsureaboutversion87),thedecoderwasnamedMmalVideoDecoderwhenhardware-acceleratedvideodecodingwasenabledandworking.YoushouldalsonoticeyourCPUusagebeingmuchlowere.g.whenplayinga1080pvideoonYouTube.YoumayalsowanttoenableWidevineinChromiumbrowserrunningonRaspberryPiOS,whichallowsplayingNetflix,AmazonPrime,Hulu,andsoon.ShareThis:Mastodon 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