| Summary: | Dual display failed ( LVDS and VGA ) | ||||||
|---|---|---|---|---|---|---|---|
| Product: | xorg | Reporter: | Yingying <yingying.zhao> | ||||
| Component: | Driver/intel | Assignee: | Gordon Jin <gordon.jin> | ||||
| Status: | RESOLVED WONTFIX | QA Contact: | Xorg Project Team <xorg-team> | ||||
| Severity: | normal | ||||||
| Priority: | medium | CC: | haien.liu, quanxian.wang | ||||
| Version: | unspecified | Keywords: | NEEDINFO | ||||
| Hardware: | Other | ||||||
| OS: | All | ||||||
| Whiteboard: | |||||||
| i915 platform: | i915 features: | ||||||
| Attachments: |
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You need set "Virtual" in xorg.conf for your dual display (with different contents on the 2 screens, i.e. extended desktop). e.g. you can set the value "2048 2048", otherwise the server will pick up the largest mode (1360) in your monitors and makes a square (1360x1360) as Virtual screen size (this is the xserver policy for choosing the maximum screen size when startup). See http://intellinuxgraphics.org/dualhead.html for more detail. Hi, Gordon We have retried on Jaunty Alpha5 following the comment#1. Still it is. Therefore reopen this bug. Do you have some testing on latest code? Does it work or not?? Yes, the upstream code is working fine on my side. Is the current symptom same as the previous? e.g. I don't think you'll still see "xrandr: screen cannot be larger than 1360x1360 (desired size 2048x768)" if setting Virtual as 2048. If the symptom is different now, I'd suggest to open a new bug to track, with new xorg.conf and Xorg.0.log. Still be the same error. The platform is x200 with one VGA monitor. Please attach the new xorg.conf, Xorg.0.log, xrandr command with output. We try it again with another configuration file, it works. Seems it is the configuration issue. Ubuntu will use the default config file. If we use xrandr command, it will bring this problem. We have to get a new config file which works for SUSE and test it with no problem. I will close the bug. |
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Created attachment 23004 [details] Xorg.0.log System environment: -- chipset : Montevina 2a42 -- system architecture : x86_64 -- xf86-video-intel : 2.6.1 -- AccelMethod: EXA -- xserver : Xorg 1.6.0 RC2 -- Mesa: 7.3 -- kernel version:2.6.28-6-generic -- Linux distribution :ubuntu-Jaunty-9.04-amd64(alpha4) Steps to reproduce: 1:Connect external display to the VGA port on the laptop(Dell ). 2:Enter Terminal mode by Fn+F1. 3:Killall gdm,and then implement command:#startx. 4:X would boot on both LVDS and VGA port successfully (dualdisplay clone). 5:Implement following configuration command: #xrandr --output VGA --mode 1024x768 # xrandr --output LVDS --mode 1024x768 # xrandr --output LVDS --left-of VGA you can see the following error: "xrandr: screen cannot be larger than 1360x1360 (desired size 2048x768)". ----------- root@alpha4-x64:# xrandr Screen 0: minimum 320 x 200, current 1360 x 768, maximum 1360 x 1360 VGA connected 1360x768+0+0 (normal left inverted right x axis y axis) 0mm x 0mm 1360x768 59.8* 1152x864 60.0 1024x768 60.0 800x600 60.3 640x480 59.9 LVDS connected 1024x768+0+0 (normal left inverted right x axis y axis) 261mm x 163mm 1280x800 60.0 + 50.0 1024x768 85.0 75.0 70.1 60.0* 832x624 74.6 800x600 85.1 72.2 75.0 60.3 56.2 640x480 85.0 72.8 75.0 59.9 720x400 85.0 640x400 85.1 640x350 85.1 HDMI-1 disconnected (normal left inverted right x axis y axis) HDMI-2 disconnected (normal left inverted right x axis y axis) root@alpha4-x64:~# xrandr --output VGA --mode 1024x768 root@alpha4-x64:~# xrandr --output LVDS --right-of VGA xrandr: screen cannot be larger than 1360x1360 (desired size 2048x768) root@alpha4-x64:~# xrandr --output LVDS --mode 1024x768 root@alpha4-x64:~# xrandr --output LVDS --right-of VGA xrandr: screen cannot be larger than 1360x1360 (desired size 2048x768) root@alpha4-x64:~# xrandr --output LVDS --left-of VGA xrandr: screen cannot be larger than 1360x1360 (desired size 2048x768) root@alpha4-x64:~#xrandr --auto root@alpha4-x64:~# xrandr --output LVDS --auto root@alpha4-x64:~# xrandr --output LVDS --left-of VGA xrandr: screen cannot be larger than 1360x1360 (desired size 2304x800) root@alpha4-x64:~# xrandr --auto root@alpha4-x64:~# xrandr --output LVDS --auto root@alpha4-x64:~# xrandr --output VGA --auto root@alpha4-x64:~# xrandr --output LVDS --left-of VGA