{"id":10544,"date":"2012-03-14T11:42:50","date_gmt":"2012-03-14T03:42:50","guid":{"rendered":"http:\/\/ukyoi.wordpress.com\/?p=10544"},"modified":"2012-03-14T11:42:50","modified_gmt":"2012-03-14T03:42:50","slug":"%e7%94%a8vga_switcheroo%e5%9c%a8linux%e4%b8%8b%ef%bc%88%e5%bc%80%e5%90%afkms%ef%bc%89%e5%bd%bb%e5%ba%95%e5%85%b3%e9%97%ad%e6%9f%90%e4%b8%80%e5%8f%af%e5%88%87%e6%8d%a2%e6%98%be%e5%8d%a1%e7%9a%84","status":"publish","type":"post","link":"https:\/\/ukyoi.info\/wordpress\/?p=10544","title":{"rendered":"\u7528vga_switcheroo\u5728Linux\u4e0b\uff08\u5f00\u542fKMS\uff09\u5f7b\u5e95\u5173\u95ed\u67d0\u4e00\u53ef\u5207\u6362\u663e\u5361\u7684\u7b80\u5355\u6559\u7a0b"},"content":{"rendered":"

\u6211\u5728\u65e9\u5148\u65f6\u8bb0\u8f7d\u8fc7\u81ea\u5df1\u4e00\u76f4\u4e3a\u4e00\u4e2a\u95ee\u9898\u6240\u6270\uff0c\u5c31\u662f\u6211\u914d\u5907\u53cc\u663e\u5361\u7684Ideapad Y460\u5728BIOS\u4e2d\u4ec5\u652f\u6301\u201c\u53ef\u5207\u6362\u201d\uff08switchable\uff09\u548c\u201c\u72ec\u7acb\u201d\uff08\u539f\u6587\u4e3adiscrete graphic\uff09\u4e24\u79cd\u6a21\u5f0f\u3002\u800c\u5f53\u4f7f\u7528\u53ef\u5207\u6362\u6a21\u5f0f\u8fdb\u5165Linux\u540e\uff0c\u867d\u7136\u53ea\u6709\u96c6\u6210\u663e\u5361\u5728\u4f7f\u7528\uff0c\u4f46\u4e24\u4e2a\u663e\u5361\u90fd\u4f1a\u540c\u65f6\u8017\u7535\uff0c\u5bfc\u81f4\u6e29\u5ea6\u5f88\u9ad8\u3002\u867d\u7136\u7528\u72ec\u7acb\u663e\u5361+\u50ac\u5316\u5242\uff08Ati\u7684\u5546\u4e1a\u9a71\u52a8\uff09\u53ef\u4ee5\u83b7\u5f97\u4e0d\u9519\u7684\u6548\u679c\uff0c\u4f46\u4f1a\u6709\u8bf8\u591a\u9ebb\u70e6\u4e8b\u60c5\uff0c\u66f4\u4f55\u51b5\u8fd9\u6837\u4e00\u6765\u96c6\u663e\u7684\u8282\u80fd\u4f18\u52bf\u5c31\u6d88\u5931\u4e86\u3002<\/p>\n

\u6211\u66fe\u5728\u8c37\u6b4c\u4e0a\u7c97\u7565\u67e5\u627e\u8fc7\u5f88\u591a\u5f7b\u5e95\u5173\u95ed\u72ec\u7acb\u663e\u5361\u7684\u65b9\u6848\uff0c\u7136\u800c\u5c31\u76ee\u524d\u6211\u770b\u5230\u7684\u4e2d\u6587\u89e3\u7b54\u6765\u8bf4\uff0c\u57fa\u672c\u90fd\u662f\u4e0d\u9760\u8c31\u7684\u7b54\u6848\u3002\u76f4\u5230\u6211\u6700\u8fd1\u4eceArch\u7684Wiki\u8f97\u8f6c\u5230\u4e86ubuntu documentation\u624d\u627e\u5230\u4e00\u4e2a\u4f7f\u7528\u5185\u6838\u81ea\u5e26\u7684vga_switcheroo\u5173\u95ed\u663e\u5361\u7684\u65b9\u6848\u3002\u5728\u6b64\u8bb0\u8ff0\u4e00\u4e0b\u3002
\n\u58f0\u660e\uff1a\u672c\u6587\u53ea\u662f\u8bb0\u8ff0\u4e86\u6700\u4e3b\u8981\u7684\u5185\u5bb9\uff0c\u8be6\u7ec6\u5185\u5bb9\u53ef\u4ee5\u4ece\u8fd9\u4e2a\u9875\u9762<\/a>\u4e2d\u627e\u5230\u3002<\/p>\n

\/\/<\/p>\n

\u4e0b\u9762\u8fdb\u5165\u6b63\u9898\uff1a<\/p>\n

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\u7ec8\u7aef\u4e2d\u8f93\u5165\uff1a<\/p>\n

cat \/sys\/kernel\/debug\/vgaswitcheroo\/switch<\/span><\/p><\/blockquote>\n

\u8fd9\u6b65\u662f\u8981\u8bfb\u51fa\/sys\/kernel\/debug\/vgaswitcheroo\/switch\u8fd9\u4e00\u6587\u4ef6\u7684\u4fe1\u606f\u3002\u4e0d\u51fa\u610f\u5916\u60a8\u53ef\u80fd\u4f1a\u770b\u5230\u7c7b\u4f3c\u4e0b\u9762\uff08\u4f46\u4e0d\u5b8c\u5168\u76f8\u540c\uff09\u7684\u5185\u5bb9\uff1a<\/p>\n

0:IGD:+:Pwr:0000:00:02.0<\/span>
\n 1:DIS: :Off:0000:01:00.0<\/span><\/p><\/blockquote>\n

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\u4e8c\u3001\u6682\u65f6\u6027\u7684\u5173\u95ed\u67d0\u4e00\u663e\u5361<\/p>\n

\u6ce8\u610f\uff1a\u4e0b\u9762\u548c\u5185\u6838\u7684\u4ea4\u4e92\u64cd\u4f5c\u662f\u901a\u8fc7\u64cd\u4f5c\/sys\/kernel\/debug\/vgaswitcheroo\/switch\u8fd9\u4e2a\u201c\u865a\u62df\u6587\u4ef6\u201d\u5b9e\u73b0\u7684\uff0c\u800c\u8fd9\u4e00\u6587\u4ef6\u6bcf\u6b21\u5f00\u673a\u4f1a\u91cd\u65b0\u521b\u5efa\uff0c\u6240\u4ee5\u60a8\u5bf9\u5176\u6240\u505a\u7684\u4fee\u6539\u90fd\u662f\u6682\u65f6\u7684\uff0c\u91cd\u542f\u540e\u4f1a\u5931\u6548\u3002<\/p>\n

\u9996\u5148\u5207\u6362\u5230root\u7528\u6237\uff1a<\/p>\n

su<\/span><\/p><\/blockquote>\n

\u8fd9\u6b65\u901a\u5e38\u662f\u5fc5\u8981\u7684\uff0c\u4e0d\u53ef\u7528sudo\u53d6\u4ee3\uff08\u4f3c\u4e4e\u662f\u56e0\u4e3asudo\u5982\u679c\u4e0d\u7ecf\u8bbe\u7f6e\uff0c\u662f\u6ca1\u6709\u201c>\u201d\u64cd\u4f5c\u7b26\u6743\u9650\u7684\uff09\u3002<\/p>\n

\u6253\u5f00\u6240\u6709\u7684\u663e\u5361\uff1a<\/p>\n

echo ON > \/sys\/kernel\/debug\/vgaswitcheroo\/switch<\/span><\/p><\/blockquote>\n

\u8fd9\u6b65\u662f\u7ed9\u6240\u6709\u663e\u5361\u52a0\u7535\uff0c\u4f7f\u5176\u8fd0\u884c\uff0c\u4f46\u4e0d\u6539\u53d8\u5f53\u524d\u8f93\u51fa\u7684\u72b6\u6001\u3002<\/p>\n

\u5207\u6362\u5230\u96c6\u6210\u663e\u5361\uff1a<\/p>\n

echo IGD > \/sys\/kernel\/debug\/vgaswitcheroo\/switch<\/span><\/p><\/blockquote>\n

\u8fd9\u6b65\u8868\u793a\u4f7f\u7528\u96c6\u6210\u663e\u5361\u4f5c\u4e3a\u8f93\u51fa\uff08\u5373\u201c\u8fde\u63a5\u4e0a\u201d\u96c6\u6210\u663e\u5361\uff09\u3002\u540c\u7406\uff0c\u5c06\u5176\u4e2d\u7684\u201cIGD\u201d\u6362\u6210\u201cDIS\u201d\u53ef\u4f7f\u7528\u72ec\u7acb\u663e\u5361\u3002<\/p>\n

\u5173\u95ed\u672a\u4f7f\u7528\u7684\u663e\u5361\uff1a<\/p>\n

echo OFF > \/sys\/kernel\/debug\/vgaswitcheroo\/switch<\/span><\/p><\/blockquote>\n

\u6700\u540e\u53ef\u4ee5\u518d\u8fd0\u884c\u4e00\u4e0bcat \/sys\/kernel\/debug\/vgaswitcheroo\/switch\uff0c\u770b\u4e00\u770b\u81ea\u5df1\u7684\u663e\u5361\u72b6\u6001\u3002<\/p>\n

\u4e09\u3001\u6c38\u4e45\u6027\u7684\u5173\u95ed\u67d0\u4e00\u663e\u5361<\/p>\n

\u89e3\u51b3\u91cd\u542f\u540e\u5931\u6548\u7684\u529e\u6cd5\u5c31\u662f\u6bcf\u6b21\u5f00\u673a\u65f6\u90fd\u6267\u884c\u4e00\u904d\u9700\u8981\u7684\u547d\u4ee4\uff0c\u800c\u4e14\u8d8a\u65e9\u6267\u884c\u8d8a\u597d\u3002\u5bf9\u4e8e\u8fd9\u4e2a\u95ee\u9898\uff0c\u4e0d\u540c\u7684\u53d1\u884c\u7248\u6709\u4e0d\u540c\u7684\u89e3\u51b3\u65b9\u6848\u3002\u4f8b\u5982\u5728\u6211\u6240\u7528\u7684Arch Linux\u4e2d\u6709\u4e00\u4e2a\/etc\/rc.local\u6587\u4ef6\uff0c\u628a\u9700\u8981\u5f00\u673a\u6267\u884c\u7684\u547d\u4ee4\u5199\u8fdb\u53bb\u5373\u53ef\u3002\u5bf9\u4e8eubuntu\uff0c\u53ef\u4ee5\u53c2\u8003ubuntu documentation\u4e0a\u7684\u4e00\u4e2a\u542f\u52a8\u811a\u672c<\/a>\u3002\u6211\u6ca1\u6709\u5c1d\u8bd5\u8fc7\u52a0\u73af\u5883\u53d8\u91cf\u662f\u5426\u6709\u7528\uff0c\u4f46\u4f3c\u4e4e\u4e5f\u5e94\u8be5\u662f\u53ef\u4ee5\u7684\u3002<\/p>\n

\/\/<\/p>\n

\u540e\u8bb0\uff1a3\u670814\u65e5\u5e1d\u90fd\uff08\u5ba4\u6e29\u7ea620\u5ea6\uff09\uff0c\u5f00\u542facpi\u8282\u80fd\u7684\u60c5\u51b5\u4e0b\uff0c\u6211\u7684Ideapad Y460\u4f7f\u7528\u96c6\u663e\uff0c\u6253\u5b57\u3001\u6d4f\u89c8\u7f51\u9875\u7b49\u64cd\u4f5c\uff0cCPU\u6e29\u5ea6\u4e0d\u523037\u5ea6\uff0c\u7535\u6c60\u7eed\u822a4\u5c0f\u65f6\u4ee5\u4e0a\uff0c\u771f\u662f\u592a\u8212\u723d\u4e86\u2026\u2026<\/p>\n","protected":false},"excerpt":{"rendered":"

\u6211\u5728\u65e9\u5148\u65f6\u8bb0\u8f7d\u8fc7\u81ea\u5df1\u4e00\u76f4\u4e3a\u4e00\u4e2a\u95ee\u9898\u6240\u6270\uff0c\u5c31\u662f\u6211\u914d\u5907\u53cc\u663e\u5361\u7684Ideapad Y460\u5728BIOS\u4e2d\u4ec5\u652f\u6301\u201c\u53ef\u5207\u6362\u201d … \u9605\u8bfb\u66f4\u591a<\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[4,9,12],"tags":[42,47,85,86],"class_list":["post-10544","post","type-post","status-publish","format-standard","hentry","category-4","category-9","category--internet","tag-ideapad-y460","tag-linux","tag-85","tag-86"],"_links":{"self":[{"href":"https:\/\/ukyoi.info\/wordpress\/index.php?rest_route=\/wp\/v2\/posts\/10544","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/ukyoi.info\/wordpress\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/ukyoi.info\/wordpress\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/ukyoi.info\/wordpress\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/ukyoi.info\/wordpress\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=10544"}],"version-history":[{"count":0,"href":"https:\/\/ukyoi.info\/wordpress\/index.php?rest_route=\/wp\/v2\/posts\/10544\/revisions"}],"wp:attachment":[{"href":"https:\/\/ukyoi.info\/wordpress\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=10544"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/ukyoi.info\/wordpress\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=10544"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/ukyoi.info\/wordpress\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=10544"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}