{"id":7436,"date":"2014-06-19T03:57:23","date_gmt":"2014-06-19T03:57:23","guid":{"rendered":"https:\/\/unknownerror.org\/index.php\/2014\/06\/19\/forcing-monitor-resolution-in-virtualbox-vm-on-linux-guest-collection-of-common-programming-errors\/"},"modified":"2014-06-19T03:57:23","modified_gmt":"2014-06-19T03:57:23","slug":"forcing-monitor-resolution-in-virtualbox-vm-on-linux-guest-collection-of-common-programming-errors","status":"publish","type":"post","link":"https:\/\/unknownerror.org\/index.php\/2014\/06\/19\/forcing-monitor-resolution-in-virtualbox-vm-on-linux-guest-collection-of-common-programming-errors\/","title":{"rendered":"Forcing monitor resolution in VirtualBox VM on Linux Guest-Collection of common programming errors"},"content":{"rendered":"<p>I am working in a VirtualBox 4 VM running Slackware-current. I have added an external monitor, and am attempting to set up both of them to run in their native resolutions, but am having no luck.<\/p>\n<p>I am following the instructions set out at: http:\/\/ubuntuforums.org\/archive\/index.php\/t-1689514.html<\/p>\n<p>But I cannot get past the step where I add a new monitor mode, ie:<\/p>\n<p><code>xrandr --addmode VBOX1 1600x1200_60.00<\/code> as I get an error message:<\/p>\n<pre><code>X Error of failed request: BadMatch (invalid parameter attributes)\nMajor opcode of failed request: 151 (RANDR)\nMinor opcode of failed request: 18 (RRAddOutputMode)\nSerial number of failed request: 20\nCurrent serial number in output stream: 21\n<\/code><\/pre>\n<p>I have gone through a number of forums, installed the latest version of VirtualBox4, and installed the Guest OS Runtime utilities.<\/p>\n<p>I have also made sure that my virtual display can handle this, ie: <code>xrandr | grep -i maximum<\/code><\/p>\n<p>yields:<\/p>\n<p><code>minimum 64 x 64, current 800 x 600, maximum 32000 x 32000<\/code><\/p>\n<p>Has anyone else encountered something similar?<\/p>\n","protected":false},"excerpt":{"rendered":"<p>I am working in a VirtualBox 4 VM running Slackware-current. I have added an external monitor, and am attempting to set up both of them to run in their native resolutions, but am having no luck. I am following the instructions set out at: http:\/\/ubuntuforums.org\/archive\/index.php\/t-1689514.html But I cannot get past the step where I add [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-7436","post","type-post","status-publish","format-standard","hentry","category-uncategorized"],"_links":{"self":[{"href":"https:\/\/unknownerror.org\/index.php\/wp-json\/wp\/v2\/posts\/7436","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/unknownerror.org\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/unknownerror.org\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/unknownerror.org\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/unknownerror.org\/index.php\/wp-json\/wp\/v2\/comments?post=7436"}],"version-history":[{"count":0,"href":"https:\/\/unknownerror.org\/index.php\/wp-json\/wp\/v2\/posts\/7436\/revisions"}],"wp:attachment":[{"href":"https:\/\/unknownerror.org\/index.php\/wp-json\/wp\/v2\/media?parent=7436"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/unknownerror.org\/index.php\/wp-json\/wp\/v2\/categories?post=7436"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/unknownerror.org\/index.php\/wp-json\/wp\/v2\/tags?post=7436"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}