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#1 2017-02-10 04:36:36

n1l5
Member
Registered: 2015-12-31
Posts: 31

External display persistent setting

Hello All,

I have a question regarding switching between internal and external monitors for a laptop running ArchLinux. I seemingly cannot proceed past the boot selector screen without the external monitor attached ( the laptop monitor turns black immediately before the login prompt appears ). I have tried with multiple external monitors attached, and only the external monitor that I initially attached to the laptop displays video output. I have entered BIOS, and set the default monitor as internal, however, the problem persists. Does ArchLinux store any persistent settings for the display output, or could this possibly be a firmware issue? Any and all help would be greatly appreciated.

Thank you for your time,

Nils

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#2 2017-02-11 10:25:21

Alcasa
Member
Registered: 2013-05-18
Posts: 46

Re: External display persistent setting

What laptop?

Have you changed the Xorg.conf?

Where are virtual ttys shown? Try switching to one by pressing Ctrl-Alt+FN1-7.

Post your Xorg log.

Some Destop environments might save configrations, but this should normally only happen after you logged in.

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#3 2017-02-16 04:05:19

n1l5
Member
Registered: 2015-12-31
Posts: 31

Re: External display persistent setting

What laptop?

- Lenovo Thinkpad T60.

Have you changed the Xorg.conf?

- Not that I am aware of; there are no files in /etc/X11/xorg.conf.d/, nor /etc/X11/xorg.conf or /etc/xorg.conf files.

Where are virtual ttys shown? Try switching to one by pressing Ctrl-Alt+FN1-7.

- The ttys are shown in the external monitor only ( tty1 through tty6 ).

Post your Xorg log.

- I grepped the /var/log/Xorg.0.log file for lines describing errors; this is the result:

[       27.771] (EE) Failed to load module "fbdev" (module does not exist, 0)
[       27.772] (EE) Failed to load module "vesa" (module does not exist, 0)
[       27.780] (EE) open /dev/dri/card0: No such file or directory
[       27.780] (EE) open /dev/dri/card0: No such file or directory
[       27.780] (EE) Screen 0 deleted because of no matching config section.
[       27.780] (EE) Screen 0 deleted because of no matching config section.
[       27.780] (EE) Devices detected, but none match those in the config file.
[       27.780] (EE)
[       27.780] (EE) no screens found(EE)
[       27.780] (EE)
[       27.780] (EE) Please also check the log file at "/var/log/Xorg.0.log" for additional information.
[       27.780] (EE)
[       27.781] (EE) Server terminated with error (1). Close log file.

Last edited by n1l5 (2017-02-16 04:10:21)

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#4 2017-02-19 08:19:25

n1l5
Member
Registered: 2015-12-31
Posts: 31

Re: External display persistent setting

Might creating an xorg.conf skeleton file ( per the Xorg article in ArchWiki ) help?

Last edited by n1l5 (2017-02-19 08:19:56)

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