xrandr not happy about external monitor
Michele Mattioni
mattions at gmail.com
Tue Jan 29 09:15:41 PST 2008
On Jan 29, 2008 5:00 PM, Alex Deucher <alexdeucher at gmail.com> wrote:
>
> On Jan 29, 2008 11:43 AM, Michele Mattioni <mattions at gmail.com> wrote:
> >
> > On Jan 28, 2008 11:39 PM, Michele Mattioni <mattions at gmail.com> wrote:
> > >
> > > On Jan 28, 2008 10:20 PM, Alex Deucher <alexdeucher at gmail.com> wrote:
> > > >
> > > > On Jan 28, 2008 4:56 PM, Michele Mattioni <mattions at gmail.com> wrote:
> > > > >
> > > > > On Jan 28, 2008 9:29 PM, Alex Deucher <alexdeucher at gmail.com> wrote:
> > > > > >
> > > > > > On Jan 28, 2008 4:16 PM, Michele Mattioni <mattions at gmail.com> wrote:
> > > > > > >
> > > > > > > On Jan 28, 2008 2:31 PM, Alex Deucher <alexdeucher at gmail.com> wrote:
> > > > > > > >
> > > > > > > > On Jan 28, 2008 4:51 AM, Michele Mattioni <mattions at gmail.com> wrote:
> > > > > > > > > On Jan 28, 2008 6:17 AM, Alex Deucher <alexdeucher at gmail.com> wrote:
> > > > > > > > > >
> > > > > > > > > > On Jan 27, 2008 8:08 PM, Michele Mattioni <mattions at gmail.com> wrote:
> > > > > > > > > > > Hello list,
> > > > > > > > > > >
> > > > > > > > > > > I have a laptop with a Mobility 9000 radeon and an external monitor
> > > > > > > > > > > form Acer 22inches.
> > > > > > > > > > >
> > > > > > > > > > > I'm using an ubuntu gutsy and the version of the xserver-xorg-video-ati is
> > > > > > > > > > > 1:6.7.195-1ubuntu2
> > > > > > > > > > >
> > > > > > > > > > > xrandr detect correctly the monitor:
> > > > > > > > > > >
> > > > > > > > > > > [mattions at the-tux:~]$ xrandr -q
> > > > > > > > > > > Screen 0: minimum 320 x 200, current 1680 x 1050, maximum 1680 x 1200
> > > > > > > > > > > VGA-0 connected 1680x1050+0+0 (normal left inverted right) 474mm x 296mm
> > > > > > > > > > > 1680x1050 60.0*+ 60.0
> > > > > > > > > > > 1600x1200 59.9
> > > > > > > > > > > 1280x1024 75.0 59.9
> > > > > > > > > > > 1440x900 75.0 59.9
> > > > > > > > > > > 1280x960 59.9
> > > > > > > > > > > 1280x720 59.9
> > > > > > > > > > > 1024x768 75.1 70.1 60.0
> > > > > > > > > > > 832x624 74.6 74.8
> > > > > > > > > > > 800x600 72.2 75.0 60.3 56.2
> > > > > > > > > > > 640x480 75.0 72.8 66.7 60.0
> > > > > > > > > > > 720x400 70.1
> > > > > > > > > > > LVDS connected 1400x1050+0+0 (normal left inverted right) 0mm x 0mm
> > > > > > > > > > > 1400x1050 61.8*+
> > > > > > > > > > > 1280x800 60.0
> > > > > > > > > > > 1280x768 60.0
> > > > > > > > > > > 1024x768 60.0
> > > > > > > > > > > 800x600 60.3
> > > > > > > > > > > 640x480 59.9
> > > > > > > > > > > S-video disconnected (normal left inverted right)
> > > > > > > > > > >
> > > > > > > > > > > However I can't see any image on the screen.
> > > > > > > > > > > The screen is somehow blue, and if I give the instruction like
> > > > > > > > > > > [mattions at the-tux:~]$ xrandr --output VGA-0 --off
> > > > > > > > > > >
> > > > > > > > > > > the screen turns black.
> > > > > > > > > > > So I guess it's responding.
> > > > > > > > > > >
> > > > > > > > > > > My Xorg log is here:
> > > > > > > > > > > http://www.ebi.ac.uk/~mattioni/log/Xorg.0.log
> > > > > > > > > > > Do you have any idea?
> > > > > > > > > >
> > > > > > > > > > This sounds like a sync polarity issue. Do any other modes on your
> > > > > > > > > > monitor work? According to your log, you have two 1680x1050 modes
> > > > > > > > > > with different polarities:
> > > > > > > > > > > 1680x1050 60.0*+ 60.0
> > > > > > > > > > (II) RADEON(0): Modeline "1680x1050"x60.0 146.25 1680 1784 1960 2240
> > > > > > > > > > 1050 1053 1059 1089 +hsync -vsync (65.3 kHz)
> > > > > > > > > > (II) RADEON(0): Modeline "1680x1050"x60.0 146.25 1680 1784 1960 2240
> > > > > > > > > > 1050 1053 1059 1089 -hsync +vsync (65.3 kHz)
> > > > > > > > > > see if switching to the other one makes the monitor work (use xrandr
> > > > > > > > > > --verbose to look up the mode ids).
> > > > > > > > > >
> > > > > > > > > > Alex
> > > > > > > > > >
> > > > > > > > >
> > > > > > > > > Thanks Alex for the quick answer,
> > > > > > > > > can you tell me how I can switch the polarities?
> > > > > > > > >
> > > > > > > >
> > > > > > > > The following should work:
> > > > > > > >
> > > > > > > > xrandr --newmode "1680x1050_60.00" 146.25 1680 1784 1960 2240 1050
> > > > > > > > 1053 1059 1089 -hsync +vsync
> > > > > > > > xrandr --addmode VGA-0 "1680x1050_60.00"
> > > > > > > > xrandr --output VGA-0 --mode "1680x1050_60.00"
> > > > > > > >
> > > > > > > > Alex
> > > > > > > >
> > > > > > >
> > > > > > > I've tried, but it doesn't work. :(
> > > > > > > his is the xrandr output:
> > > > > > >
> > > > > > > [mattions at the-tux:~]$ xrandr -q
> > > > > > > Screen 0: minimum 320 x 200, current 1680 x 1050, maximum 1680 x 1200
> > > > > > > VGA-0 connected 1680x1050+0+0 (normal left inverted right) 474mm x 296mm
> > > > > > > 1680x1050 60.0 + 60.0*
> > > > > > > 1600x1200 59.9
> > > > > > > 1280x1024 75.0 59.9
> > > > > > > 1440x900 75.0 59.9
> > > > > > > 1280x960 59.9
> > > > > > > 1280x720 59.9
> > > > > > > 1024x768 75.1 70.1 60.0
> > > > > > > 832x624 74.6 74.8
> > > > > > > 800x600 72.2 75.0 60.3 56.2
> > > > > > > 640x480 75.0 72.8 66.7 60.0
> > > > > > > 720x400 70.1
> > > > > > > 1680x1050_60.00 60.0
> > > > > > > LVDS connected 1400x1050+0+0 (normal left inverted right) 0mm x 0mm
> > > > > > > 1400x1050 61.8*+
> > > > > > > 1280x800 60.0
> > > > > > > 1280x768 60.0
> > > > > > > 1024x768 60.0
> > > > > > > 800x600 60.3
> > > > > > > 640x480 59.9
> > > > > > > S-video disconnected (normal left inverted right)
> > > > > > >
> > > > > >
> > > > > > hmmm... maybe your panel only likes reduced blanking modes even though
> > > > > > it doesn't specify any in it's edid. try this:
> > > > > > xrandr --newmode "1680x1050R" 119.00 1680 1728 1760 1840 1050 1053
> > > > > > 1059 1080 +hsync -vsync
> > > > > > xrandr --addmode VGA-0 "1680x1050R"
> > > > > > xrandr --output VGA-0 --mode "1680x1050R"
> > > > > >
> > > > > > does that work better?
> > > > > >
> > > > > > >
> > > > > > >
> > > > > > > I've spotted this on the Xorg.log
> > > > > > > (WW) RADEON(0): DDC2/I2C is not properly initialized
> > > > > > >
> > > > > > > Can be the problem?
> > > > > >
> > > > > > no you can ignore that.
> > > > > >
> > > > > > >
> > > > > > > The model of the screen is
> > > > > > > Acer X221W 22inch widescreen.
> > > > > > >
> > > > > > > Any other idea?
> > > > > >
> > > > > > try the reduced blanking mode I suggested above.
> > > > > >
> > > > > > Alex
> > > > > >
> > > > >
> > > > >
> > > > > no, it doesn't work.
> > > > >
> > > > > New conf:
> > > > >
> > > > > [mattions at the-tux:~]$ xrandr -q
> > > > > Screen 0: minimum 320 x 200, current 1680 x 1050, maximum 1680 x 1200
> > > > > VGA-0 connected 1680x1050+0+0 (normal left inverted right) 474mm x 296mm
> > > > > 1680x1050 60.0 + 60.0
> > > > > 1600x1200 59.9
> > > > > 1280x1024 75.0 59.9
> > > > > 1440x900 75.0 59.9
> > > > > 1280x960 59.9
> > > > > 1280x720 59.9
> > > > > 1024x768 75.1 70.1 60.0
> > > > > 832x624 74.6 74.8
> > > > > 800x600 72.2 75.0 60.3 56.2
> > > > > 640x480 75.0 72.8 66.7 60.0
> > > > > 720x400 70.1
> > > > > 1680x1050_60.00 60.0
> > > > > 1680x1050R 59.9*
> > > > > LVDS connected 1400x1050+0+0 (normal left inverted right) 0mm x 0mm
> > > > > 1400x1050 61.8*+
> > > > > 1280x800 60.0
> > > > > 1280x768 60.0
> > > > > 1024x768 60.0
> > > > > 800x600 60.3
> > > > > 640x480 59.9
> > > > > S-video disconnected (normal left inverted right)
> > > > >
> > > > >
> > > > > It's always blu... alight blue, but no image is shown.
> > > > > My xorg.conf is attached...
> > > >
> > > > can you get a picture? Do any of the other modes work (1440x900,
> > > > 1280x720, 1024x768, etc.)? does changing the LVDS mode have an
> > > > affect?
> > > > xrandr --output LVDS --mode 1024x768
> > > > xrandr --output VGA-0 --mode 1024x768
> > > > xrandr --output VGA-0 --auto
> > > >
> > > > Alex
> > > >
> > >
> > > Hi Alex,
> > >
> > > So every mode tried on the laptop works. Switching on, off, and
> > > several resolution.
> > >
> > > On the other monitor is possible to switch it off and change the resolution.
> > > Everytime there is a message on the screen
> > >
> > > "Auto Config
> > > Please wait"
> > >
> > > and the same blue remain.
> > >
> > > If you give
> > > xrandr --output VGA-0 --off
> > >
> > > the screen become black and there is
> > > "No signal"
> > >
> > > Tomorrow I will provide you a picture...
> > >
> > > Thanks,
> > > Michele
> > >
> >
> > I've tested the laptop with another screen and it didn't work.
> >
> > I'm wondering if my VGA port is broken.
> > When I attach the laptop to a second screen the output of lspci doesn't change.
>
> It shouldn't change. lspci shows pci devices not monitors. Some
> video chips show up as two pci devices, but this is purely a hack for
> running dualhead in windows 2000 and has nothing to do with monitors.
>
> >
> > Has it to change or not?
> > I remember I've ran that laptop with an external beamer (long time
> > ago) there was even compiz running there...
> >
>
> Does the external port work if you boot the laptop with the lid
> closed? The bios boot screen should show up on the VGA monitor.
>
It doesn't...
> > The laptop has a tv-out port.. Can be the source of the problem?
> > I notice that we are not any more on the ML, is the right way to do
> > it, or I should address all the list?
>
> Whoops, we should include the list in case others run into the same
> issue (adding it back now). TV-out shouldn't be a problem. does
> xrandr show it as connected? By default it's assumed to be
> disconnected so it's not used.
>
The TV-out it's listed as disconnected..
The strange thing is that as soon X start the screen change to a
really dark blue...
but nothing else..
Tested with three different monitor, same result.
M.
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