[Bug 15708] New: VGA-0 can't be activated using xrandr, even though it is properly detected by xrandr -q

bugzilla-daemon at freedesktop.org bugzilla-daemon at freedesktop.org
Fri Apr 25 02:03:52 PDT 2008


http://bugs.freedesktop.org/show_bug.cgi?id=15708

           Summary: VGA-0 can't be activated using xrandr, even though it is
                    properly detected by xrandr -q
           Product: xorg
           Version: 7.3
          Platform: Other
        OS/Version: All
            Status: NEW
          Severity: critical
          Priority: high
         Component: Driver/Radeon
        AssignedTo: xorg-driver-ati at lists.x.org
        ReportedBy: charlie.xia.fdu at gmail.com
         QAContact: xorg-team at lists.x.org
                CC: keithp at keithp.com


Created an attachment (id=16175)
 --> (http://bugs.freedesktop.org/attachment.cgi?id=16175)
Xorg log file after reboot and issuing 'xrandr --auto' with external monitor
connected and turned on

My laptop is HP NC4000 (12' display supports 1024x768) with AIT Radeon IGP 350M
(32M shared mem), one VGA and one S-video port. I am running Debian Sid with
xorg(1:7.3+10), xserver-xorg-video-ati(1:6.8.0-1) and 'xrandr -v' shows "Server
reports RandR version 1.2

The situation is xrandr seems to have correctly detected my connected monitor
HU196D(19' LCD, supports up to 1280x1024) as well as the CRTC. But it can't
output any signal to the external monitor as my external monitor remains "no
signal input, check cable" after I have issued 'xrandr --output VGA-0 --auto'
or whatever command to bring it on.

Can't figure out what's going on by google search and hacking by myself. What I
can do now is to report a bug for help. Thanks!

Run 'xrandr -q' shows correct detection of my LVDS and VGA-0 monitors as below:

[charlie at charlie-laptop]/var/log>xrandr -q
Screen 0: minimum 320 x 200, current 1024 x 768, maximum 2048 x 768
VGA-0 connected 1024x768+0+0 (normal left inverted right x axis y axis) 376mm x
301mm
   1024x768       75.1*    70.1     60.0 
   800x600        72.2     75.0     60.3 
   640x480        75.0     72.8     60.0 
   720x400        70.1 
LVDS connected 1024x768+0+0 (normal left inverted right x axis y axis) 0mm x
0mm
   1024x768       60.0*+   60.0 
   800x600        60.3 
   640x480        59.9 
S-video disconnected (normal left inverted right x axis y axis)

And xrandr also detects right CRTC. 'xrandr --verbose' shows:

[charlie at charlie-laptop]/var/log>xrandr --verbose
Screen 0: minimum 320 x 200, current 1024 x 768, maximum 2048 x 768
VGA-0 connected 1024x768+0+0 (0x4f) normal (normal left inverted right x axis y
axis) 376mm x 301mm
    Identifier: 0x4c
    Timestamp:  35380
    Subpixel:   no subpixels
    Clones:   
    CRTC:       1
    CRTCs:      0 1
    EDID_DATA:
        00ffffffffffff0022649a8957090000
        0e1001036c261e782afd56a5534a9d24
        144f54adcf0081800101010101010101
        010101010101302a009851002a403070
        1300782d1100001e000000fd00384b1e
        500e000a202020202020000000fc0048
        55313936440a202020202020000000ff
        003631344741334843413233393100c0
    load_detection: 0 (0x00000000) range:  (0,1)
  1024x768 (0x4f)   78.8MHz +HSync +VSync
        h: width  1024 start 1040 end 1136 total 1312 skew    0 clock   60.1KHz
        v: height  768 start  769 end  772 total  800           clock   75.1Hz
  1024x768 (0x50)   75.0MHz -HSync -VSync
        h: width  1024 start 1048 end 1184 total 1328 skew    0 clock   56.5KHz
        v: height  768 start  771 end  777 total  806           clock   70.1Hz
  1024x768 (0x51)   65.0MHz -HSync -VSync
        h: width  1024 start 1048 end 1184 total 1344 skew    0 clock   48.4KHz
        v: height  768 start  771 end  777 total  806           clock   60.0Hz
  800x600 (0x52)   50.0MHz +HSync +VSync
        h: width   800 start  856 end  976 total 1040 skew    0 clock   48.1KHz
        v: height  600 start  637 end  643 total  666           clock   72.2Hz
  800x600 (0x53)   49.5MHz +HSync +VSync
        h: width   800 start  816 end  896 total 1056 skew    0 clock   46.9KHz
        v: height  600 start  601 end  604 total  625           clock   75.0Hz
  800x600 (0x54)   40.0MHz +HSync +VSync
        h: width   800 start  840 end  968 total 1056 skew    0 clock   37.9KHz
        v: height  600 start  601 end  605 total  628           clock   60.3Hz
  640x480 (0x55)   31.5MHz -HSync -VSync
        h: width   640 start  656 end  720 total  840 skew    0 clock   37.5KHz
        v: height  480 start  481 end  484 total  500           clock   75.0Hz
  640x480 (0x56)   31.5MHz -HSync -VSync
        h: width   640 start  664 end  704 total  832 skew    0 clock   37.9KHz
        v: height  480 start  489 end  491 total  520           clock   72.8Hz
  640x480 (0x57)   25.2MHz -HSync -VSync
        h: width   640 start  656 end  752 total  800 skew    0 clock   31.5KHz
        v: height  480 start  490 end  492 total  525           clock   60.0Hz
  720x400 (0x58)   28.3MHz -HSync +VSync
        h: width   720 start  738 end  846 total  900 skew    0 clock   31.5KHz
        v: height  400 start  412 end  414 total  449           clock   70.1Hz
LVDS connected 1024x768+0+0 (0x59) normal (normal left inverted right x axis y
axis) 0mm x 0mm
    Identifier: 0x4d
    Timestamp:  35380
    Subpixel:   horizontal rgb
    Clones:   
    CRTC:       0
    CRTCs:      0
        scaler: full
    backlight: 255 (0x000000ff) range:  (0,255)
  1024x768 (0x59)   65.0MHz
        h: width  1024 start 1040 end 1176 total 1344 skew    0 clock   48.4KHz
        v: height  768 start  770 end  776 total  806           clock   60.0Hz
  1024x768 (0x51)   65.0MHz -HSync -VSync
        h: width  1024 start 1048 end 1184 total 1344 skew    0 clock   48.4KHz
        v: height  768 start  771 end  777 total  806           clock   60.0Hz
  800x600 (0x54)   40.0MHz +HSync +VSync
        h: width   800 start  840 end  968 total 1056 skew    0 clock   37.9KHz
        v: height  600 start  601 end  605 total  628           clock   60.3Hz
  640x480 (0x5a)   25.2MHz -HSync -VSync
        h: width   640 start  656 end  752 total  800 skew    0 clock   31.5KHz
        v: height  480 start  490 end  492 total  525           clock   59.9Hz
S-video disconnected (normal left inverted right x axis y axis)
    Identifier: 0x4e
    Timestamp:  35380
    Subpixel:   no subpixels
    Clones:   
    CRTCs:      0 1
        tv_standard: ntsc
    tv_vertical_position: 0 (0x00000000) range:  (-5,5)
    tv_horizontal_position: 0 (0x00000000) range:  (-5,5)
    tv_horizontal_size: 0 (0x00000000) range:  (-5,5)
    load_detection: 0 (0x00000000) range:  (0,1)

My xorg.conf:

Section "Files"
EndSection

Section "InputDevice"
        Identifier      "Generic Keyboard"
        Driver          "kbd"
        Option          "CoreKeyboard"
        Option          "XkbRules"      "xorg"
        Option          "XkbModel"      "pc104"
        Option          "XkbLayout"     "us"
EndSection

Section "InputDevice"
        Identifier      "Configured Mouse"
        Driver          "mouse"
        Option          "CorePointer"
        Option          "Device"                "/dev/input/mice"
        Option          "Protocol"              "ImPS/2"
        Option          "Emulate3Buttons"       "true"
EndSection

Section "InputDevice"
        Identifier      "Synaptics Touchpad"
        Driver          "synaptics"
        Option          "SendCoreEvents"        "true"
        Option          "Device"                "/dev/psaux"
        Option          "Protocol"              "auto-dev"
        Option          "HorizScrollDelta"      "0"
EndSection

Section "Device"
        Identifier      "ATI IGP Radeon 350M (Primary)"
        Driver          "ati"
        BusID           "PCI:1:5:0"
        Vendorname      "ATI"
        VideoRam        32768
        Option          "Monitor-LVDS"  "LAPTOP"
        #Option         "Monitor-VGA"   "VGAOUT" 
        #no need to specify Monitor-VGA-0, it uses the "VGA-0" identifier
automatically
EndSection

Section "Monitor"
        Identifier      "LAPTOP"
        Option          "DPMS"
        DisplaySize     250 185
EndSection

Section "Monitor"
        Identifier      "VGA-0"
        Option          "DPMS"
        DisplaySize     376 301
EndSection

Section "Screen"
        Identifier      "LAPTOP Screen"
        Device          "ATI IGP Radeon 350M (Primary)"
        DefaultDepth    24
        SubSection "Display"
                Depth     24
                Virtual 2048 768
        EndSubSection
EndSection

Section "ServerLayout"
        Identifier      "Dual Head Layout"
        Screen          "LAPTOP Screen"
        InputDevice     "Generic Keyboard"
        InputDevice     "Configured Mouse"
        InputDevice     "Synaptics Touchpad"
EndSection


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