{"id":69883,"date":"2025-12-09T12:40:08","date_gmt":"2025-12-09T12:40:08","guid":{"rendered":"https:\/\/www.europesays.com\/lv\/69883\/"},"modified":"2025-12-09T12:40:08","modified_gmt":"2025-12-09T12:40:08","slug":"valve-cinas-pret-hdmi-forum-ierobezojumiem-lente-lv-2","status":"publish","type":"post","link":"https:\/\/www.europesays.com\/lv\/69883\/","title":{"rendered":"Valve c\u012bn\u0101s pret HDMI Forum ierobe\u017eojumiem\u00a0\u2014\u00a0Lente.lv"},"content":{"rendered":"<p>Steam Machine slepenais HDMI 2.1: C\u012b\u0146a pret intelektu\u0101l\u0101 \u012bpa\u0161uma barjer\u0101m<\/p>\n<p>\u0160\u0137ietami vienk\u0101r\u0161ais Steam Machine apar\u0101ta specifik\u0101ciju skaidrojums ir atkl\u0101jis dzi\u013c\u0101ku probl\u0113mu, kas saist\u012bta ar augstas iz\u0161\u0137irtsp\u0113jas video standartiem. Lai gan s\u0101kotn\u0113ji tika zi\u0146ots par HDMI 2.0 atbalstu, kas daudziem rad\u012bja vil\u0161anos, Valve ir atkl\u0101jis paties\u012bbu: *iek\u0161\u0113ji Steam Machine patie\u0161\u0101m sp\u0113j darboties ar HDMI 2.1*, ta\u010du programmat\u016bra to ne\u013cauj. Tas ir k\u0101 jaud\u012bgam zirgam sasietas k\u0101jas \u2014 potenci\u0101ls ir, bet tas netiek piln\u012bb\u0101 izmantots.<\/p>\n<p>HDMI Forum un atv\u0113rt\u0101 koda ierobe\u017eojumi<\/p>\n<p>Galvenais \u0161\u012b programmat\u016bras blo\u0137\u0113juma iemesls ir *HDMI Forum politikas*. \u0160is konzorcijs, kas nosaka ofici\u0101l\u0101s HDMI specifik\u0101cijas, pag\u0101ju\u0161aj\u0101 gad\u0101 stingri <a href=\"#\">aizliedza<\/a> jebk\u0101das atv\u0113rt\u0101 koda HDMI 2.1 realiz\u0101cijas. \u0160is l\u0113mums ir rad\u012bjis nopietnas sekas, jo \u012bpa\u0161i attiec\u012bb\u0101 uz Linux oper\u0113t\u0101jsist\u0113m\u0101m, ko izmanto Steam Machine.<\/p>\n<p>AMD un c\u012b\u0146a par atv\u0113rto grafisko draiveru funkcionalit\u0101ti<\/p>\n<p>Situ\u0101cija k\u013cuva v\u0113l sare\u017e\u0123\u012bt\u0101ka 2024. gada s\u0101kum\u0101, kad AMD m\u0113\u0123in\u0101ja ieviest svar\u012bgas HDMI 2.1 funkcijas, piem\u0113ram, atbalstu 4K pie 120 Hz un pat 5K pie 240 Hz, sav\u0101 atv\u0113rt\u0101 koda grafiskaj\u0101 draiver\u012b Linux sist\u0113m\u0101m (AMDGPU). Diem\u017e\u0113l, <a href=\"#\">\u0161is priek\u0161likums tika noraid\u012bts<\/a>. Tas noz\u012bm\u0113, ka SteamOS izmantotie atv\u0113rtie AMD draiveri nevar pilnv\u0113rt\u012bgi izmantot jaun\u0101k\u0101 standarta priek\u0161roc\u012bbas. Tas ir k\u0101 m\u0113\u0123in\u0101t uzb\u016bv\u0113t modernu m\u0101ju ar vienk\u0101r\u0161iem instrumentiem \u2013 tr\u016bkst nepiecie\u0161amo r\u012bku.<\/p>\n<p>HDMI 2.0 kompromiss un t\u0101 sekas<\/p>\n<p>Pa\u0161reiz\u0113jais HDMI 2.0 standarts ierobe\u017eo maksim\u0101lo iz\u0161\u0137irtsp\u0113ju l\u012bdz 4K pie 60 Hz. Lai gan Valve ir izdevies sasniegt 4K pie 120 Hz, kas nor\u0101d\u012bts ier\u012bces specifik\u0101cij\u0101s, tas tika pan\u0101kts, izmantojot t\u0101du tehniku k\u0101 *Chroma Subsampling*. \u0160\u012b metode samazina kr\u0101su inform\u0101cijas apjomu, saglab\u0101jot meln\u0101 un balt\u0101 l\u012bme\u0146us, ta\u010du tas nenoliedzami rada *kompromisu att\u0113la kvalit\u0101t\u0113*. Lai gan t\u0101 \u013cauj samazin\u0101t datu pl\u016bsmas izm\u0113ru un atvieglot p\u0101rraidi, daudzi atsauksmju autori ir nor\u0101d\u012bju\u0161i, ka kr\u0101su samazin\u0101jums ir *ac\u012bmredzami j\u016btams* un negat\u012bvi ietekm\u0113 kop\u0113jo att\u0113la baud\u012bjumu. Tas ir l\u012bdz\u012bgi k\u0101 m\u0113\u0123in\u0101t izlas\u012bt gr\u0101matu ar izpl\u016bdu\u0161\u0101m lap\u0101m \u2013 ideja ir, bet detaliz\u0101cija zudusi.<\/p>\n<p>DisplayPort 1.4 \u2013 lab\u0101k\u0101 alternat\u012bva Linux vid\u0113<\/p>\n<p>\u0160obr\u012bd lab\u0101kais risin\u0101jums augstas veiktsp\u0113jas savienojam\u012bbai Linux sist\u0113m\u0101s, tostarp uz Steam Machine, joproj\u0101m ir *DisplayPort 1.4*. \u0160is standarts pied\u0101v\u0101 v\u0113l liel\u0101ku joslas platumu nek\u0101 HDMI 2.1, nodro\u0161inot patie\u0161\u0101m iespaid\u012bgu datu p\u0101rraidi. Valve gan nor\u0101da, ka vi\u0146i *akt\u012bvi str\u0101d\u0101 pie \u0161o probl\u0113mu risin\u0101\u0161anas*, cerot n\u0101kotn\u0113 pan\u0101kt pilnv\u0113rt\u012bgu HDMI 2.1 atbalstu.<\/p>\n","protected":false},"excerpt":{"rendered":"Steam Machine slepenais HDMI 2.1: C\u012b\u0146a pret intelektu\u0101l\u0101 \u012bpa\u0161uma barjer\u0101m \u0160\u0137ietami vienk\u0101r\u0161ais Steam Machine apar\u0101ta specifik\u0101ciju skaidrojums ir&hellip;\n","protected":false},"author":2,"featured_media":69884,"comment_status":"","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[19],"tags":[89,17872,17873,90,35,39,38,36,37,34,14248,40,17871,8684],"class_list":{"0":"post-69883","1":"post","2":"type-post","3":"status-publish","4":"format-standard","5":"has-post-thumbnail","7":"category-izklaide","8":"tag-entertainment","9":"tag-hdmi-2-1","10":"tag-hdmi-forum","11":"tag-izklaide","12":"tag-latvia","13":"tag-latvian","14":"tag-latviesu","15":"tag-latviesu-valoda","16":"tag-latviesuvaloda","17":"tag-latvija","18":"tag-linux","19":"tag-lv","20":"tag-steam-machine","21":"tag-valve"},"share_on_mastodon":{"url":"https:\/\/pubeurope.com\/@lv\/115689660426090793","error":""},"_links":{"self":[{"href":"https:\/\/www.europesays.com\/lv\/wp-json\/wp\/v2\/posts\/69883","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.europesays.com\/lv\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.europesays.com\/lv\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.europesays.com\/lv\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/www.europesays.com\/lv\/wp-json\/wp\/v2\/comments?post=69883"}],"version-history":[{"count":0,"href":"https:\/\/www.europesays.com\/lv\/wp-json\/wp\/v2\/posts\/69883\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.europesays.com\/lv\/wp-json\/wp\/v2\/media\/69884"}],"wp:attachment":[{"href":"https:\/\/www.europesays.com\/lv\/wp-json\/wp\/v2\/media?parent=69883"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.europesays.com\/lv\/wp-json\/wp\/v2\/categories?post=69883"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.europesays.com\/lv\/wp-json\/wp\/v2\/tags?post=69883"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}