On 14/08/2014, sa...@eng.it <sa...@eng.it> wrote: > Robert D. Hilliard writes: > > Reply To: bobhilli...@gmail.com > >> I have a new Dell Ispiron that dual boots Windows 7 and Debian 7.4. > > The new machine uses the F1 key to connect to the second monitor, but > > it only works in Windows - In Debian pressing F! is a noop. > > I would advice to use xrandr. > > First issue the > > xrandr -q command > > in a terminal so that you can see which monitors are available. > > Here is what the output on my laptop: > > 08:42:12 [24] $xrandr -q > Screen 0: minimum 320 x 200, current 2390 x 768, maximum 8192 x 8192 > LVDS1 connected 1366x768+1024+0 (normal left inverted right x axis y axis) > 344mm x 194mm > 1366x768 60.0*+ > 1360x768 59.8 60.0 > 1024x768 60.0 > 800x600 60.3 56.2 > 640x480 59.9 > VGA1 connected 1024x768+0+0 (normal left inverted right x axis y axis) 304mm > x 228mm > 1024x768 75.1 75.0 70.1 60.0* > 800x600 72.2 75.0 60.3 > 640x480 72.8 75.0 60.0 > 720x400 70.1 > HDMI1 disconnected (normal left inverted right x axis y axis) > DP1 disconnected (normal left inverted right x axis y axis) > > VGA1 on a laptop SHOULD be always be the VGA connector, on my machine > the screen of the laptop is LVDS1 and it is the default primary > monitor. IF I understood the manual page, the primary monitor is also > the first one listed with the -q option. > > Please note that there are 2 other connectors that are not in use > HDMI1 and DP1. > > Once you know the monitor names you can build the command that better > suits your needs. In the following example I will assume that the > external monitor is named VGA1 and the laptop monitor is named LVDS1. > > If you just need to have the external monitor as only output (you do > not use the laptop monitor) > > xrandr --output VGA1 --primary > > that turns the external monitor into the primary (this comes from one > of the pages mentioned in this thread). I will use this command with a > slight change: > > xrandr --output VGA1 --primary --output LVDS1 --off > > that shuts down the laptop monitor and saves some power. To turn the > monitor on you must issue the > > xrandr --output LVDS1 --mode widthxheight. > > This command > > xrandr -output VGA1 -same-as LVDS1 > > turns the external monitor into a mirror of the internal monitor > without changing the primary monitor. > > Reading the xrandr manual you will discover what options suits your > problem best. > > One last thing. Since you do not want to issue this command over and > over again, you can place it into the .xsession file (if you use > xdm/gdm/kdm) or .xinitrc file if you log on in a text console and then > manually run the startx program. > > --
After reading the thread, and the above response, it occurred to me, that this could be worthwhile to add to the debian.org web site, as a "HowTo", for whoever has the privileges. Or, if such a thing exists, a Debian "HowTo" wiki? -- Bret Busby Armadale West Australia .............. "So once you do know what the question actually is, you'll know what the answer means." - Deep Thought, Chapter 28 of Book 1 of "The Hitchhiker's Guide to the Galaxy: A Trilogy In Four Parts", written by Douglas Adams, published by Pan Books, 1992 .................................................... -- To UNSUBSCRIBE, email to debian-user-requ...@lists.debian.org with a subject of "unsubscribe". Trouble? Contact listmas...@lists.debian.org Archive: https://lists.debian.org/cacx6j8mqfwsyzec8bxstutws7lqspv0fbbswbpycuy+1cau...@mail.gmail.com
