{"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\/nl\/blog\/news\/obnovlenie-okonnogo-menedzhera-xfwm4-4-14-3","title":{"rendered":"Update van de window manager xfwm4 4.14.3","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"

Gepubliceerd<\/a><\/noindex> uitgave van de vensterbeheerder xfwm4 4.14.3<\/a><\/noindex>, gebruikt in de gebruikersomgeving Xfce voor het weergeven van vensters op het scherm, het decoreren van vensters en het organiseren van hun verplaatsing, sluiting en wijziging van grootte. <\/p>\n

In de nieuwe uitgave toegevoegd<\/a><\/noindex> ondersteuning voor X11-extensie XRes<\/a><\/noindex> (X-Resource), die wordt ingezet<\/a><\/noindex> om informatie over de PID van de applicatie op te vragen bij de X-server, die is gestart met behulp van sandbox-isolatiemechanismen. Ondersteuning voor XRes lost het probleem op van het geforceerd be\u00ebindigen van vastgelopen clientprocessen, waarvan de PID niet kan worden verkregen via de eigenschap _NET_WM_PID, omdat deze de proces-ID binnen de ge\u00efsoleerde omgeving weerspiegelt, die kan verschillen van de ID in de globale namespace. <\/p>\n

In deze nieuwe versie is er ook opgelost<\/a><\/noindex> een kwetsbaarheid die kan leiden tot toegang tot al vrijgegeven geheugen (use-after-free) en het schrijven van gegevens buiten de toegewezen buffer bij het verwerken van instellingen in de strings. Bovendien zijn er in xfwm4 4.14.3 zijn toegevoegd<\/a><\/noindex> extra foutafhandelingshandlers XError, die het diagnosticeren van problemen met verzoeken om XConfigureWindow vergemakkelijken.<\/p>\n

Bij sommige gebruikers traden na de update naar versie 4.14.3 problemen op<\/a><\/noindex> crashes op bij het proberen op te starten in FreeBSD, die blijkbaar het gevolg zijn van de nieuwe binding aan libXres. Daarnaast is er in xfwm4 naar voren<\/a><\/noindex> een probleem met het detecteren van AMD-grafische kaarten bij het inschakelen van de X11-extensie XPresent voor het synchroniseren van uitvoer met de verticale synchronisatiepuls (vblank). XPresent wordt ingeschakeld wanneer de naam van de kaart een AMD-masker bevat, terwijl sommige kaarten worden genoemd<\/a><\/noindex> \u2018Radeon\u2019 zonder vermelding van het woord \u2018AMD\u2019 (bijvoorbeeld, \u2018Radeon RX 570\u2019). Voor deze kaarten werd een vblank-handler op basis van \u2018glx\u2019 ingeschakeld, die duidelijk achterblijft qua prestaties.<\/p>\n

Bijvoorbeeld, bij gebruik van glx belast het afspelen van 4K-video in mpv de GPU tot 70% in hoge kwaliteit en 50% in lage kwaliteit, terwijl de belasting bij gebruik van XPresent daalt tot respectievelijk 50% en 30%, wat invloed heeft op het energieverbruik en de prestaties. Dit probleem is nog niet opgelost. Om XPresent geforceerd in te schakelen, kan de instelling \\\/general\\\/vblank_mode worden toegevoegd aan xfconf:<\/p>\n

xfconf-query -c xfwm4 -p \/general\/vblank_mode -t string -s \u2018xpresent\u2019 \u2014create<\/p>\n

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

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

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