Re: Laptop + VGA + X
-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 On Tue, Dec 29, 2015 at 06:39:44PM -1000, 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 Yes, thanks. To add some "recipe-y" ideas, at work I have a big external monitor. I do this: xrandr --output VGA-0 --mode 1600x1200 \ --output LVDS --mode 1366x768 --below VGA-0 And then I tell my Fvwm that there's more "room": cat <<__END | FvwmCommand -c XineramaSlsScreens 2 1600x1200+0+0 1366x768+0+1200 XineramaSls On Xinerama On __END (of course, the FvwmCommands module must be loaded for that). Hope that inspires some desktop rebels out there ;-) - -- t -BEGIN PGP SIGNATURE- Version: GnuPG v1.4.12 (GNU/Linux) iEYEARECAAYFAlaDoO0ACgkQBcgs9XrR2kbAOQCbBCFdaiYQHcKb+J6SkroGh1Aw WgsAniUUF7hKRcyLFdwuljUG3D13OLRg =8uMt -END PGP SIGNATURE-
Re: Laptop + VGA + X
Hi, François. Thank you for the input. Here is my other attempt, with the correct monitor identifiers: hudson@musix:~$ xrandr --output LVDS-1 --auto --output VGA-1 --auto hudson@musix:~$ hudson@musix:~$ xrandr Screen 0: minimum 320 x 200, current 1280 x 800, maximum 2047 x 2047 LVDS-1 connected 1280x800+0+0 (normal left inverted right x axis y axis) 303mm x 190mm 1280x800 59.91*+ VGA-1 disconnected (normal left inverted right x axis y axis) As you see, the extern monitor remains considered disconnected. (It behaves like in standby state, as it takes a little time to display the screen when I switch to the framebuffer terminal.) Hudson franc...@avalenn.eu wrote: 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 -- Hudson Lacerda - www.hudsonlacerda.com -- - Venha para a Diaspora* - uma rede social livre e descentralizada https://diasporafoundation.org https://diasporabr.com.br - Como vendemos nossas almas --e mais-- aos gigantes da internet https://amusicadehudsonlacerda.wordpress.com/2015/09/07/como-vendemos-nossas-almas-e-mais-aos-gigantes-da-internet-bruce-schneier/ - Vamos falar sobre privacidade? https://amusicadehudsonlacerda.wordpress.com/2015/07/29/vamos-falar-sobre-privacidade/
Re: Laptop + VGA + X
On Wed, Dec 30, 2015 at 11:28:52AM -0200, Hudson Flavio Meneses Lacerda wrote: > Thank you for the input. Here is my other attempt, with the correct monitor > identifiers: > > hudson@musix:~$ xrandr --output LVDS-1 --auto --output VGA-1 --auto > hudson@musix:~$ > hudson@musix:~$ xrandr > Screen 0: minimum 320 x 200, current 1280 x 800, maximum 2047 x 2047 > LVDS-1 connected 1280x800+0+0 (normal left inverted right x axis y axis) > 303mm x 190mm >1280x800 59.91*+ > VGA-1 disconnected (normal left inverted right x axis y axis) > > > As you see, the extern monitor remains considered disconnected. (It behaves > like in standby state, as it takes a little time to display the screen when > I switch to the framebuffer terminal.) This is how "--auto" works. As the man page says : --auto For connected but disabled outputs, this will enable them using their first preferred mode (or, something close to 96dpi if they have no preferred mode). For disconnected but enabled outputs, this will disable them. It seems that something like this could work : $ xrandr --addmode VGA1 1024x768 $ xrandr --output VGA1 --mode 1024x768 (See http://askubuntu.com/questions/150879/can-i-force-vga-signal-output-even-when-xrandr-shows-disconnected for my source)
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
Re: Laptop + VGA + X
Hi, François. Eventually this worked: xrandr --addmode VGA-1 1280x800 xrandr --output VGA-1 --mode 1280x800 --same-as LVDS-1 I cannot the the entire screen on the CRT(VGA-1) monitor, but I will try to configure the monitor to display as much as possible (or the left side, at least). Thanks to all you that helped me! Cheers! Hudson Lacerda https://aMusicaDeHudsonLacerda.wordpress.com P.S.: Interestingly, the output still is shown as "disconnected", although it is working!: $ xrandr Screen 0: minimum 320 x 200, current 1280 x 800, maximum 2047 x 2047 LVDS-1 connected 1280x800+0+0 (normal left inverted right x axis y axis) 303mm x 190mm 1280x800 59.91*+ VGA-1 disconnected 1280x800+0+0 (normal left inverted right x axis y axis) 0mm x 0mm 1280x800 59.91*
Re: Laptop + VGA + X
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.
Re: Laptop + VGA + X
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 > Thanks. > Hudson Lacerda > > > > > > hudson@musix:tmp$ xrandr > Screen 0: minimum 320 x 200, current 1280 x 800, maximum 2047 x 2047 > LVDS-1 connected 1280x800+0+0 (normal left inverted right x axis y axis) > 303mm x 190mm >1280x800 59.91*+ > VGA-1 disconnected (normal left inverted right x axis y axis) > > > Debian 8.2 > > > X.Org X Server 1.16.4 > Release Date: 2014-12-20 > X Protocol Version 11, Revision 0 > Build Operating System: Linux 3.2.0-4-amd64 i686 Debian > Current Operating System: Linux musix 3.16.0-4-686-pae #1 SMP Debian > 3.16.7-ckt20-1+deb8u1 (2015-12-14) i686 > Kernel command line: BOOT_IMAGE=/boot/vmlinuz-3.16.0-4-686-pae > root=UUID=05...fb1 ro lang=pt_BR vga=789 quiet > Build Date: 11 February 2015 01:14:26AM > xorg-server 2:1.16.4-1 (http://www.debian.org/support) > Current version of pixman: 0.32.6 > > > > xrandr program version 1.4.2 > Server reports RandR version 1.4 > > > > > > -- > 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 > -- Joel Roth
