Xfce Forum

piscvau

Member

Registered: 2018-03-03

Posts: 2

screen is not activated if powered on, while PC is running

Using xubuntu 16.04, I turn on the PC when the display monitor (a Panasonic TV screen linked to the PC with HDMI) is powered off.
then I turn on the TV display, it does not show anything . In XUBUNTU, The display parameters show "Panasonic Industry standard not activated".
In command line I run xrandr it states HDMI-0 connected and the resolution is correct.

If the TV screen is powered on when I turn the computer on everything is working properly.

However since I need the screen in only 5% of the time I would like to be able to turn it on only when needed without having to restart the computer.
Any help is welcome!...

Below are the information about the graphic card and the driver:
*-display               
       description: VGA compatible controller
       produit: Wrestler [Radeon HD 6320]
       fabriquant: Advanced Micro Devices, Inc. [AMD/ATI]
       identifiant matériel: 1
       information bus: pci@0000:00:01.0
       version: 00
       bits: 32 bits
       horloge: 33MHz
       fonctionnalités: pm pciexpress msi vga_controller bus_master cap_list rom
       configuration: driver=radeon latency=0
       ressources: irq:31 mémoire:c0000000-cfffffff portE/S:f000(taille=256) mémoire:feb00000-feb3ffff

alcornoqui

Member

Registered: 2014-07-28

Posts: 832

Re: screen is not activated if powered on, while PC is running

See if this helps: https://forum.xfce.org/viewtopic.php?id=10985

piscvau

Member

Registered: 2018-03-03

Posts: 2

Re: screen is not activated if powered on, while PC is running

Yes this helps. Typing xrendr --auto does solve the problem. We will link it to a keyboard key and it runs. Thanks a lot.

alcornoqui

Member

Registered: 2014-07-28

Posts: 832

Re: screen is not activated if powered on, while PC is running

Great! It'd be:

xrandr --auto

(just in case anyone copy/pastes)