Bug 305148 - Setting the resolution of the screens in multiscreen environment will cause black screen.
Summary: Setting the resolution of the screens in multiscreen environment will cause b...
Status: RESOLVED FIXED
Alias: None
Product: systemsettings
Classification: Applications
Component: kcm_randr (show other bugs)
Version: 4.9.0
Platform: Ubuntu Linux
: NOR normal
Target Milestone: ---
Assignee: Gustavo Pichorim Boiko
URL:
Keywords:
Depends on:
Blocks:
 
Reported: 2012-08-14 16:22 UTC by Yichao Zhou
Modified: 2013-09-07 08:18 UTC (History)
1 user (show)

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Description Yichao Zhou 2012-08-14 16:22:21 UTC
I'm using AMD/INTEL card with xf86-video-intel/amd with newest archlinux.(kde 4.9)

This is my laptop. And I use one additional screen.

I don't know how to choose the Product and Component.


If I open system setting->Display and monitor, I can see two screen: LVDS1 and HDMI1.

The standard resolution of LVDS1 is 1366x768, but now it is 1024*768.
The standard resolution of HDMI is 1920x1080, but now it is also 1024*768.

I want to close LVDS1 and set the resolution of HDMI correctly.  So I disable the size of LVDS1 and set the HDMI.  After  I apply my setting, my HDMI output will become black.

I don't know the main point of this problem.  Maybe someone could tell me how to test it further?  Thanks.

Reproducible: Always
Comment 1 Yichao Zhou 2012-08-14 16:25:51 UTC
By the way,  command
  xrandr --output HDMI1 --auto --output LVDS1 --off
works well for me.  So I believe this is a bug.
Comment 2 Yichao Zhou 2013-09-07 08:18:29 UTC
I think that's fixed.