Re: Re: Laptop + VGA + X
-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 On Wed, Dec 30, 2015 at 10:05:22AM -0200, Hudson Flavio Meneses Lacerda wrote: > Joel Roth wrote: > >Hudson Flavio Meneses Lacerda wrote: > >>Hi. > >> > >>The monitor of my laptop is broken, thus the screen frequently becomes > >>white. Then, it is needed to turning off the energy and restart the laptop > >>(not always with success). > >> > >>Therefore, I plugged a VGA monitor. However, the VGA monitor does not work > >>when X is active. (It works very fine with framebuffer, though.) > >> > >>How to enable Xorg to use a VGA monitor plugged to a laptop? > > > >I use a command like this: > > > >xrandr --output LVDS1 --auto --output VGA1 --auto > > Hi Joel. > > I just tried your suggestion, but got this message: > > hudson@musix:tmp$ xrandr --output LVDS1 --auto --output VGA1 --auto > warning: output LVDS1 not found; ignoring > warning: output VGA1 not found; ignoring > hudson@musix:tmp$ Ah -- LVDS1 is just one of the possible names for the laptop's display. To find out how yours are called (and what resolutions they report as available), just try (best with second monitor attached, so you can get a complete list): xrandr (My laptop's internal monitor, for example, is called just "LVDS", not "LVDS1"). HTH - -- tomás -BEGIN PGP SIGNATURE- Version: GnuPG v1.4.12 (GNU/Linux) iEYEARECAAYFAlaDz8oACgkQBcgs9XrR2kY3bwCdGsFon0Zg5KO0L3ntwD45Ut9b nnsAniDH4Ynz57/nOa2yCKwJJLi0TVbc =E45y -END PGP SIGNATURE-
Re: Re: Laptop + VGA + X
On Wed, Dec 30, 2015 at 10:05:22AM -0200, Hudson Flavio Meneses Lacerda wrote: > Joel Roth wrote: > >Hudson Flavio Meneses Lacerda wrote: > >>How to enable Xorg to use a VGA monitor plugged to a laptop? > > > >I use a command like this: > > > >xrandr --output LVDS1 --auto --output VGA1 --auto > I just tried your suggestion, but got this message: > > hudson@musix:tmp$ xrandr --output LVDS1 --auto --output VGA1 --auto > warning: output LVDS1 not found; ignoring > warning: output VGA1 not found; ignoring > hudson@musix:tmp$ Your monitor names are probably a little bit different. Typing "xrandr" with no option will allow you to list the monitors actually seen by X. For example I have eDP1, VGA1 and HDMI1 as possible names for my current configuration : $ xrandr Screen 0: minimum 320 x 200, current 1366 x 768, maximum 8192 x 8192 eDP1 connected 1366x768+0+0 (normal left inverted right x axis y axis) 344mm x 194mm 1366x768 60.03*+ 40.01 1360x768 59.8059.96 VGA1 disconnected (normal left inverted right x axis y axis) HDMI1 disconnected (normal left inverted right x axis y axis) francois
Re: Re: Laptop + VGA + X
Joel Roth wrote: Hudson Flavio Meneses Lacerda wrote: Hi. The monitor of my laptop is broken, thus the screen frequently becomes white. Then, it is needed to turning off the energy and restart the laptop (not always with success). Therefore, I plugged a VGA monitor. However, the VGA monitor does not work when X is active. (It works very fine with framebuffer, though.) How to enable Xorg to use a VGA monitor plugged to a laptop? I use a command like this: xrandr --output LVDS1 --auto --output VGA1 --auto Hi Joel. I just tried your suggestion, but got this message: hudson@musix:tmp$ xrandr --output LVDS1 --auto --output VGA1 --auto warning: output LVDS1 not found; ignoring warning: output VGA1 not found; ignoring hudson@musix:tmp$ Thanks. Hudson P.S.: The desktop manager I am using is Fluxbox (1.3.5-2).
Re: Re: Laptop + VGA + X
Gary Dale wrote: On 29/12/15 07:00 PM, Hudson Flavio Meneses Lacerda wrote: Hi. The monitor of my laptop is broken, thus the screen frequently becomes white. Then, it is needed to turning off the energy and restart the laptop (not always with success). Therefore, I plugged a VGA monitor. However, the VGA monitor does not work when X is active. (It works very fine with framebuffer, though.) How to enable Xorg to use a VGA monitor plugged to a laptop? Thanks. Hudson Lacerda Which desktop manager are you using? Usually they have graphical tools to detect the monitors and switch between them, use them both with the same output or use them as an extra-large single display. It's pretty rare these days to need to fiddle with config files for this. Hi. I am using Fluxbox 1.3.5-2 (very basic setup, with just the main bar and gkrellm, no "desktop" icons or other plugins). When I used this laptop for presentations (connected to data projectors), I sometimes needed to use the framebuffer and tools like fbgs, fbi, gpm, etc. May that be a hardware limitation? Is not X not compatible with old CRT monitors anymore? Thanks. -- Hudson Lacerda - www.hudsonlacerda.com -- - Venha para a Diaspora* - uma rede social livre e descentralizada https://diasporafoundation.org https://diasporabr.com.br - Mantenha o controle de sua computação, senão ela vai controlar você! https://www.gnu.org/philosophy/keep-control-of-your-computing.html - O modelo das urnas eletrônicas brasileiras é o mais antiquado e obscuro em uso no mundo. http://votoseguro.org
