{"id":89957,"date":"2020-07-27T13:42:24","date_gmt":"2020-07-27T11:42:24","guid":{"rendered":"https:\/\/prohoster.info\/blog\/novosti-interneta\/obnovlenie-okonnogo-menedzhera-xfwm4-4-14-3"},"modified":"2020-07-27T13:42:24","modified_gmt":"2020-07-27T11:42:24","slug":"obnovlenie-okonnogo-menedzhera-xfwm4-4-14-3","status":"publish","type":"post","link":"https:\/\/prohoster.info\/hu\/blog\/news\/obnovlenie-okonnogo-menedzhera-xfwm4-4-14-3","title":{"rendered":"Az xfwm4 4.14.3 ablakkezel\u0151 friss\u00edt\u00e9se","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"

Megjelent<\/a><\/noindex> az ablakkezel\u0151 kiad\u00e1sa xfwm4 4.14.3<\/a><\/noindex>, amelyet az Xfce felhaszn\u00e1l\u00f3i k\u00f6rnyezetben haszn\u00e1lnak az ablakok k\u00e9perny\u0151n val\u00f3 megjelen\u00edt\u00e9s\u00e9re, d\u00edsz\u00edt\u00e9s\u00e9re \u00e9s mozg\u00e1suk, bez\u00e1r\u00e1suk \u00e9s m\u00e9retez\u00e9s\u00fck megszervez\u00e9s\u00e9re. <\/p>\n

Az \u00faj kiad\u00e1sban hozz\u00e1adva lett<\/a><\/noindex> X11 kiterjeszt\u00e9s t\u00e1mogat\u00e1sa XRes<\/a><\/noindex> (X-Resource), amely haszn\u00e1latban van<\/a><\/noindex> az X szervert\u0151l arra vonatkoz\u00f3an, hogy k\u00e9rje le az alkalmaz\u00e1s PID-j\u00e9t, amelyet sandbox izol\u00e1ci\u00f3s mechanizmusokkal ind\u00edtottak. Az XRes t\u00e1mogat\u00e1s megoldja azt a probl\u00e9m\u00e1t, hogy a felf\u00fcggesztett kliensfolyamatok k\u00e9nyszer\u0171 le\u00e1ll\u00edt\u00e1sa, amelyek PID-ja a _NET_WM_PID tulajdons\u00e1g alapj\u00e1n nem ismerhet\u0151 meg, mivel ez az izol\u00e1lt k\u00f6rnyezeten bel\u00fcli folyamat azonos\u00edt\u00f3j\u00e1t t\u00fckr\u00f6zi, amely elt\u00e9rhet a glob\u00e1lis n\u00e9vt\u00e9rben tal\u00e1lhat\u00f3 azonos\u00edt\u00f3t\u00f3l. <\/p>\n

Az \u00faj kiad\u00e1sban szint\u00e9n eliminates<\/a><\/noindex> megjelenik egy sebezhet\u0151s\u00e9g, amely k\u00e9s\u0151bb jelent probl\u00e9m\u00e1t, amikor m\u00e1r felszabad\u00edtott mem\u00f3ria ter\u00fcletekhez (use-after-free) pr\u00f3b\u00e1lunk hozz\u00e1f\u00e9rni, \u00e9s adatokat \u00edrunk ki a lefoglalt puffert\u0151l f\u00fcggetlen ter\u00fcletre a be\u00e1ll\u00edt\u00e1sokkal rendelkez\u0151 karakterl\u00e1ncok feldolgoz\u00e1sa sor\u00e1n. Tov\u00e1bb\u00e1, az xfwm4 4.14.3 hozz\u00e1adva<\/a><\/noindex> tov\u00e1bbi XError hibakezel\u0151ket tartalmaz, amelyek megk\u00f6nny\u00edtik az XConfigureWindow-k\u00e9r\u00e9sekhez kapcsol\u00f3d\u00f3 probl\u00e9m\u00e1k diagnosztiz\u00e1l\u00e1s\u00e1t.<\/p>\n

N\u00e9h\u00e1ny felhaszn\u00e1l\u00f3n\u00e1l a 4.14.3 verzi\u00f3ra val\u00f3 friss\u00edt\u00e9s ut\u00e1n megfigyelhet\u0151v\u00e9 v\u00e1lt<\/a><\/noindex> a FreeBSD alatt tapasztalhat\u00f3 \u00f6sszeoml\u00e1sok, amelyek \u00e1ll\u00edt\u00f3lag az \u00faj libXres k\u00f6t\u0151d\u00e9sb\u0151l erednek. Az xfwm4-ben megjelent<\/a><\/noindex> probl\u00e9ma mer\u00fclt fel az AMD videok\u00e1rty\u00e1k felismer\u00e9s\u00e9vel az X11 kiterjeszt\u00e9s, az XPresent aktiv\u00e1l\u00e1sakor a k\u00e9pfriss\u00edt\u00e9s szinkroniz\u00e1l\u00e1s\u00e1ra (vblank). Az XPresent akkor aktiv\u00e1l\u00f3dott, amikor a k\u00e1rtya nev\u00e9ben az AMD maszk szerepelt, m\u00edg egyes k\u00e1rty\u00e1k a k\u00f6vetkez\u0151k\u00e9ppen vannak elnevezve<\/a><\/noindex> \u201eRadeon\u201c eml\u00edt\u00e9se n\u00e9lk\u00fcl az \u201eAMD\u201c sz\u00f3t (p\u00e9ld\u00e1ul \u201eRadeon RX 570\u201c). Ezekhez a k\u00e1rty\u00e1khoz a vblank feldolgoz\u00f3t aktiv\u00e1lt\u00e1k, ami a glx alap\u00fa, \u00e9s jelent\u0151sen elmarad a teljes\u00edtm\u00e9nnyel.<\/p>\n

P\u00e9ld\u00e1ul a glx haszn\u00e1latakor a 4K vide\u00f3 lej\u00e1tsz\u00e1sa az mpv programban a GPU terhel\u00e9se 70% magas min\u0151s\u00e9g mellett, \u00e9s 50% alacsony min\u0151s\u00e9g mellett, m\u00edg az XPresent haszn\u00e1lata sor\u00e1n a terhel\u00e9s 50%-ra \u00e9s 30%-ra cs\u00f6kken, ami jelent\u0151sen befoly\u00e1solja az energiafogyaszt\u00e1st \u00e9s a teljes\u00edtm\u00e9nyt. A probl\u00e9ma egyel\u0151re nem ker\u00fclt jav\u00edt\u00e1sra. Az XPresent k\u00e9nyszer\u00edtett aktiv\u00e1l\u00e1s\u00e1hoz be\u00e1ll\u00edthatjuk a k\u00f6vetkez\u0151 be\u00e1ll\u00edt\u00e1st xfconf-ban:<\/p>\n

xfconf-query -c xfwm4 -p \/general\/vblank_mode -t string -s \u201expresent\u201c \u2014create<\/p>\n

<\/a><\/noindex><\/p>\n

Forr\u00e1s: opennet.ru<\/a><\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"

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