Re: xrandr Dual head screen different resolutions open source radeon driver
2008/11/17 Mitchell Laks <mlaks@post.harvard.edu>:
> On 09:37 Mon 17 Nov , Bob wrote:
>> I'm running lenny and I have a 22" CRT @ 1600x1200 as my left screen and
>> a 24" widescreen LCD @ 1920x1200 as my right screen.
>>
>> When I boot up both screens come up at 1600x1200 and I have to run the
>> following command to fix them.
>> xrandr --output VGA-0 --mode 1600x1200_85 --pos 0x0 --output DVI-0
>> --mode 1920x1200_60 --pos 1600x0
>
>
> That is very cool. How did you figure out what to do? I am currently using the nvidia proprietary drivers
> on my system with a 6600GT nvidia dual head dvi video card
> 1920x1200 on left and 1280x1024 on the right
>
> and i have been using the nvidia setup which leaves me with
> a total desktop of 3200x1200
> where I can't see the bottom of the right screen because it thinks it is 1200 high whereas it is only 1024 so it is off the screen.
>
> I wonder if the xrandr line can fix it?
>
> would it work with my xorg?
have you had any luck with a clean xorg.conf?
if you make a copy of your xorg.conf and run
dpkg-reconfigure xserver-xorg
that will clean up your conf file and after a restart the xserver will
choose the options for you.
i use the ati proprietary driver and regulary check the radeonhd
driver on my desktop and haven't had the same issues with a dual head
setup. it just worked without having to edit my xorg at all.
there is also an aticonfig --initial for the proprietary driver and
i'm sure nvidia must have something similar but i only have AMD and
Intel cards to test on.
> what would i use?
>
> Mitchell
>
>
>
> Section "Monitor"
> Identifier "Generic Monitor"
> HorizSync 30.0 - 65.0
> VertRefresh 50.0 - 75.0
> Option "DPMS"
> EndSection
>
> Section "Screen"
> Identifier "Default Screen"
> Device "NVIDIA Corporation NV43 [GeForce 6600/GeForce 6600 GT]"
> Monitor "Generic Monitor"
> DefaultDepth 24
> Option "TwinView" "true"
> Option "TwinViewOrientation" "RightOf"
> Option "MetaModes" "1920x1200,1280x1024"
> Option "Coolbits" "1"
> SubSection "Display"
> Depth 1
> Modes "1920x1200" "1280x1024" "1024x768" "800x600" "640x480"
> EndSubSection
> SubSection "Display"
> Depth 4
> Modes "1920x1200" "1280x1024" "1024x768" "800x600" "640x480"
> EndSubSection
> SubSection "Display"
> Depth 8
> Modes "1920x1200" "1280x1024" "1024x768" "800x600" "640x480"
> EndSubSection
> SubSection "Display"
> Depth 15
> Modes "1920x1200" "1280x1024" "1024x768" "800x600" "640x480"
> EndSubSection
> SubSection "Display"
> Depth 16
> Modes "1280x1024" "1024x768" "800x600" "640x480"
> EndSubSection
> SubSection "Display"
> Depth 24
> Modes "1920x1200" "1280x1024" "1024x768" "800x600" "640x480"
>
>
>
>> here is my xorg.conf, I haven't tidied it up, there are a lot of things
>> commented out from my experimenting and from the evolution of the setup.
>>
>> Section "InputDevice"
>> Identifier "Generic Keyboard"
>> Driver "kbd"
>> Option "XkbRules" "xorg"
>> Option "XkbModel" "pc104"
>> Option "XkbLayout" "us"
>> EndSection
>>
>> Section "InputDevice"
>> Identifier "Configured Mouse"
>> Driver "mouse"
>> EndSection
>>
>> Section "Device"
>> Identifier "Configured Video Device"
>> Driver "ati"
>> #Driver "radeonhd"
>> Option "Monitor-VGA-0" "L_CRT
>> Option "Monitor-DVI-0" "R_LCD"
>> #Option "DDCMode" "TRUE" #Force to use the modes queried from the
>> connected monitor. The default is off.
>> #Option "NoDDC" "TRUE" #Force ignore of DDC
>> #Option "IgnoreEDID" "TRUE" # Do not use EDID data for mode
>> validation, but DDC is still used for monitor detection.
>> #Option "PanelSize" "1360x768" #only use when driver cannot
>> detect correct LCD panel resolution, panels in funky sizes, will still
>> need modeline.
>> Option "EnablePageFlip" "TRUE" # page flipping for 3D accel,
>> increases performance but doesn't work in rare cases, hence default is
>> off.
>> Option "AccelMethod" "EXA" # Valid options are XAA and EXA, XAA
>> old, reliable & default, EXA newer faster
>> Option "FBTexPercent" "50" # with EXA 0 may be faster but may
>> cause probs, XAA no real efect, default 50
>> Option "DMAForXv" "TRUE" # Default on speed up playing video
>> #Option "DepthBits" "16" # 16 or 24, for 3D defaults to screen
>> depth but can force a 16 on 24bit screen to speed up
>> Option "SubPixelOrder" "RGB" # change pixcel order read up
>> default NONE for crt RGB for most digital pannels.
>> Option "DynamicClocks" "TRUE" # may save power, may slow 3D,
>> don't know if it works on PCs, is for laptops
>> EndSection
>>
>> Section "Monitor"
>> Identifier "L_CRT" # iiyama
>> Option "LeftOf" "R_LCD"
>> Option "DPMS"
>> #VendorName "Iiyama"
>> #ModelName "Iiyama A201HT, VisionMaster Pro 510"
>> #HorizSync 30.0-130.0
>> #VertRefresh 50.0-160.0
>> Modeline "1600x1200_75" 202.50 1600 1664 1856 2160 1200 1201
>> 1204 1250 +hsync +vsync #@75.0 Hz
>> Modeline "1600x1200_85" 229.50 1600 1664 1856 2160 1200 1201
>> 1204 1250 +hsync +vsync # 85 Hz
>> #Option "TargetRefresh" "85"
>> Option "PreferredMode" "1600x1200_85"
>> EndSection
>>
>> Section "Monitor"
>> Identifier "R_LCD" # Samsung
>> #Option "RightOf" "L_CRT"
>> Option "DPMS"
>> #VendorName "Samsung"
>> #ModelName "SyncMaster_2493HM"
>> #HorizSync 27.0 - 81.0 # From The Samsung Windows .ini file
>> #VertRefresh 50.0 - 75.0 # From The Samsung Windows .ini file
>> # Modline for Samsung SyncMaster_2493hm
>> Modeline "1920x1200_60" 154.128 1920 1968 2000 2080 1200
>> 1203 1209 1235 +hsync -vsync # 60
>> #Option "TargetRefresh" "60"
>> Option "PreferredMode" "1920x1200_60"
>> EndSection
>>
>> Section "Screen"
>> Identifier "Default Screen"
>> Monitor "R_LCD"
>> DefaultDepth 24
>> SubSection "Display"
>> Depth 24
>> Virtual 3520 1200
>> EndSubSection
>> EndSection
>>
>>
>> So any idea how I can get it to boot strait to the correct resolution?
>>
>> Thanks for any help.
>>
>>
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