What version of udev are you using? This sounds very much like a bug
that's been circulating on the Debian lists.
If sarge, sarge + etch backports , udev may be your issue, from the time
frame you noted I'd venture to suggest upgrading udev and see if that
cures it.
HTH
-Tim
On Mon, 2006-10-23 at 18:16 +1000, Yasir Assam wrote:
> I was happily using an unstable version of xen built July from source
> (pre 3.0.3) and I downloaded the 3.0.3 source and built it using:
>
> # make world
> # make install
>
> dom0 boots ok, but when the the xorg xserver starts I just get a blank
> screen - I think it's not picking up the right modes.
>
> (BTW - 640x480 does work, but it's the only resolution that works).
>
> It's really strange, because xorg.conf is the same whether it's runinng
> under Xen or a normal kernel. Here's a diff between the xorg log
> starting on a normal kernel and the xen 3.0.3 kernel:
>
>
>
> 6c6
> < Current Operating System: Linux eir 2.6.17.4-eir #1 SMP Tue Jul 11
> 12:19:50 EST 2006 i686
> ---
> > Current Operating System: Linux eir 2.6.16.29-xen #1 SMP Sun Oct 22
> 19:30:13 EST 2006 i686
> 14c14
> < (==) Log file: "/var/log/Xorg.0.log", Time: Mon Oct 23 09:44:56 2006
> ---
> > (==) Log file: "/var/log/Xorg.0.log", Time: Mon Oct 23 09:41:44 2006
> 436,486c436
> < (II) VESA(0): VESA VBE DDC supported
> < (II) VESA(0): VESA VBE DDC Level 2
> < (II) VESA(0): VESA VBE DDC transfer in appr. 1 sec.
> < (II) VESA(0): VESA VBE DDC read successfully
> < (II) VESA(0): Manufacturer: MEL Model: 4625 Serial#: 16843009
> < (II) VESA(0): Year: 2003 Week: 18
> < (II) VESA(0): EDID Version: 1.3
> < (II) VESA(0): Analog Display Input, Input Voltage Level: 0.700/0.300 V
> < (II) VESA(0): Sync: Separate Composite
> < (II) VESA(0): Max H-Image Size [cm]: horiz.: 37 vert.: 27
> < (II) VESA(0): Gamma: 2.20
> < (II) VESA(0): DPMS capabilities: StandBy Suspend Off; RGB/Color Display
> < (II) VESA(0): First detailed timing is preferred mode
> < (II) VESA(0): GTF timings supported
> < (II) VESA(0): redX: 0.626 redY: 0.339 greenX: 0.279 greenY: 0.600
> < (II) VESA(0): blueX: 0.149 blueY: 0.072 whiteX: 0.283 whiteY: 0.297
> < (II) VESA(0): Supported VESA Video Modes:
> < (II) VESA(0): 720x400@70Hz
> < (II) VESA(0): 720x400@88Hz
> < (II) VESA(0): 640x480@60Hz
> < (II) VESA(0): 640x480@67Hz
> < (II) VESA(0): 640x480@72Hz
> < (II) VESA(0): 640x480@75Hz
> < (II) VESA(0): 800x600@56Hz
> < (II) VESA(0): 800x600@60Hz
> < (II) VESA(0): 800x600@72Hz
> < (II) VESA(0): 800x600@75Hz
> < (II) VESA(0): 832x624@75Hz
> < (II) VESA(0): 1024x768@87Hz (interlaced)
> < (II) VESA(0): 1024x768@60Hz
> < (II) VESA(0): 1024x768@70Hz
> < (II) VESA(0): 1024x768@75Hz
> < (II) VESA(0): 1280x1024@75Hz
> < (II) VESA(0): 1152x870@75Hz
> < (II) VESA(0): Manufacturer's mask: 0
> < (II) VESA(0): Supported Future Video Modes:
> < (II) VESA(0): #0: hsize: 640 vsize 480 refresh: 85 vid: 22833
> < (II) VESA(0): #1: hsize: 800 vsize 600 refresh: 85 vid: 22853
> < (II) VESA(0): #2: hsize: 1024 vsize 768 refresh: 85 vid: 22881
> < (II) VESA(0): #3: hsize: 1152 vsize 864 refresh: 75 vid: 20337
> < (II) VESA(0): #4: hsize: 1280 vsize 960 refresh: 85 vid: 22913
> < (II) VESA(0): #5: hsize: 1280 vsize 1024 refresh: 85 vid: 39297
> < (II) VESA(0): #6: hsize: 1600 vsize 1200 refresh: 75 vid: 20393
> < (II) VESA(0): #7: hsize: 1792 vsize 1344 refresh: 65 vid: 17857
> < (II) VESA(0): Supported additional Video Mode:
> < (II) VESA(0): clock: 157.5 MHz Image Size: 356 x 266 mm
> < (II) VESA(0): h_active: 1280 h_sync: 1344 h_sync_end 1504
> h_blank_end 1728 h_border: 0
> < (II) VESA(0): v_active: 1024 v_sync: 1025 v_sync_end 1028
> v_blanking: 1072 v_border: 0
> < (II) VESA(0): Ranges: V min: 50 V max: 160 Hz, H min: 30 H max: 96
> kHz, PixClock max 230 MHz
> < (II) VESA(0): Monitor name: DPLUS93SB
> < (II) VESA(0): Serial No: 3500101YR
> ---
> > (II) VESA(0): VESA VBE DDC not supported
> 517c467
> < PhysBasePtr: 0xe0000000
> ---
> > PhysBasePtr: 0x0
> 559c509
> < PhysBasePtr: 0xe0000000
> ---
> > PhysBasePtr: 0x0
> 643c593
> < PhysBasePtr: 0xe0000000
> ---
> > PhysBasePtr: 0x0
> 727c677
> < PhysBasePtr: 0xe0000000
> ---
> > PhysBasePtr: 0x0
> 811c761
> < PhysBasePtr: 0xe0000000
> ---
> > PhysBasePtr: 0x0
> 853c803
> < PhysBasePtr: 0xe0000000
> ---
> > PhysBasePtr: 0x0
> 895c845
> < PhysBasePtr: 0xe0000000
> ---
> > PhysBasePtr: 0x0
> 937c887
> < PhysBasePtr: 0xe0000000
> ---
> > PhysBasePtr: 0x0
> 979c929
> < PhysBasePtr: 0xe0000000
> ---
> > PhysBasePtr: 0x0
> 1021c971
> < PhysBasePtr: 0xe0000000
> ---
> > PhysBasePtr: 0x0
> 1063c1013
> < PhysBasePtr: 0xe0000000
> ---
> > PhysBasePtr: 0x0
> 1105c1055
> < PhysBasePtr: 0xe0000000
> ---
> > PhysBasePtr: 0x0
> 1147c1097
> < PhysBasePtr: 0xe0000000
> ---
> > PhysBasePtr: 0x0
> 1189c1139
> < PhysBasePtr: 0xe0000000
> ---
> > PhysBasePtr: 0x0
> 1231c1181
> < PhysBasePtr: 0xe0000000
> ---
> > PhysBasePtr: 0x0
> 1273c1223
> < PhysBasePtr: 0xe0000000
> ---
> > PhysBasePtr: 0x0
> 1315c1265
> < PhysBasePtr: 0xe0000000
> ---
> > PhysBasePtr: 0x0
> 1357c1307
> < PhysBasePtr: 0xe0000000
> ---
> > PhysBasePtr: 0x0
> 1399c1349
> < PhysBasePtr: 0xe0000000
> ---
> > PhysBasePtr: 0x0
> 1441c1391
> < PhysBasePtr: 0xe0000000
> ---
> > PhysBasePtr: 0x0
> 1483c1433
> < PhysBasePtr: 0xe0000000
> ---
> > PhysBasePtr: 0x0
> 1525c1475
> < PhysBasePtr: 0xe0000000
> ---
> > PhysBasePtr: 0x0
> 1567c1517
> < PhysBasePtr: 0xe0000000
> ---
> > PhysBasePtr: 0x0
> 1609c1559
> < PhysBasePtr: 0xe0000000
> ---
> > PhysBasePtr: 0x0
> 1651c1601
> < PhysBasePtr: 0xe0000000
> ---
> > PhysBasePtr: 0x0
> 1693c1643
> < PhysBasePtr: 0xe0000000
> ---
> > PhysBasePtr: 0x0
> 1735c1685
> < PhysBasePtr: 0xe0000000
> ---
> > PhysBasePtr: 0x0
> 1777c1727
> < PhysBasePtr: 0xe0000000
> ---
> > PhysBasePtr: 0x0
> 1790d1739
> < *(WW) (2048x1536,DPLUS93SB) mode clock 266.95MHz exceeds DDC maximum
> 230MHz
> 1820c1769
> < PhysBasePtr: 0xe0000000
> ---
> > PhysBasePtr: 0x0
> 1835,1836c1784,1785
> < (II) VESA(0): DPLUS93SB: Using default hsync range of 30.00-96.00 kHz
> < (II) VESA(0): DPLUS93SB: Using default vrefresh range of 50.00-160.00 Hz
> ---
> > (II) VESA(0): DPLUS93SB: Using default hsync range of 28.00-33.00 kHz
> > (II) VESA(0): DPLUS93SB: Using default vrefresh range of 43.00-72.00 Hz
> 1842d1790
> < (II) VESA(0): Not using built-in mode "2048x1536" (width too large for
> virtual size)
> 1850,1854c1798
> < (II) VESA(0): Attempting to use 85Hz refresh for mode "1280x1024" (11b)
> < (II) VESA(0): Attempting to use 85Hz refresh for mode "1024x768" (118)
> < (II) VESA(0): Attempting to use 85Hz refresh for mode "800x600" (115)
> < (II) VESA(0): Attempting to use 85Hz refresh for mode "640x480" (112)
> < (II) VESA(0): Attempting to use 85Hz refresh for mode "640x400" (13e)
> ---
> > (II) VESA(0): Attempting to use 60Hz refresh for mode "640x480" (112)
> 1921,1922c1865,1866
> < (II) VESA(0): virtual address = 0xb38cb000,
> < physical address = 0xe0000000, size = 67108864
> ---
> > (II) VESA(0): virtual address = 0xb78d5000,
> > physical address = 0xa0000, size = 65536
> 1973a1918
> > (II) Configured Mouse: ps2EnableDataReporting: succeeded
>
>
>
>
> The main difference beteween the blank screen and the ok screen is that
> when the display works, I get "VESA VBE DDC supported" but when it goes
> blank I get "VESA VBE DDC not supported". I'm guessing that because DDC
> doesn't work under xen 3.0.3 it's not picking up the right modes and my
> xorg.conf doesn't work. Here's xorg.conf:
>
>
>
> # /etc/X11/xorg.conf (xorg X Window System server configuration file)
> #
> # This file was generated by dexconf, the Debian X Configuration tool, using
> # values from the debconf database.
> #
> # Edit this file with caution, and see the /etc/X11/xorg.conf manual page.
> # (Type "man /etc/X11/xorg.conf" at the shell prompt.)
> #
> # This file is automatically updated on xserver-xorg package upgrades *only*
> # if it has not been modified since the last upgrade of the xserver-xorg
> # package.
> #
> # If you have edited this file but would like it to be automatically updated
> # again, run the following command:
> # sudo dpkg-reconfigure -phigh xserver-xorg
>
> Section "Files"
> FontPath "/usr/share/fonts/X11/misc"
> FontPath "/usr/X11R6/lib/X11/fonts/misc"
> FontPath "/usr/share/fonts/X11/cyrillic"
> FontPath "/usr/X11R6/lib/X11/fonts/cyrillic"
> FontPath "/usr/share/fonts/X11/100dpi/:unscaled"
> FontPath "/usr/X11R6/lib/X11/fonts/100dpi/:unscaled"
> FontPath "/usr/share/fonts/X11/75dpi/:unscaled"
> FontPath "/usr/X11R6/lib/X11/fonts/75dpi/:unscaled"
> FontPath "/usr/share/fonts/X11/Type1"
> FontPath "/usr/X11R6/lib/X11/fonts/Type1"
> FontPath "/usr/share/fonts/X11/100dpi"
> FontPath "/usr/X11R6/lib/X11/fonts/100dpi"
> FontPath "/usr/share/fonts/X11/75dpi"
> FontPath "/usr/X11R6/lib/X11/fonts/75dpi"
> # path to defoma fonts
> FontPath "/var/lib/defoma/x-ttcidfont-conf.d/dirs/TrueType"
> EndSection
>
> Section "Module"
> Load "i2c"
> Load "bitmap"
> Load "ddc"
> Load "dri"
> Load "extmod"
> Load "freetype"
> Load "glx"
> Load "int10"
> Load "type1"
> Load "vbe"
> 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" "ExplorerPS/2"
> Option "Emulate3Buttons" "true"
> EndSection
>
> Section "Device"
> Identifier "Generic Video Card"
> Driver "vesa"
> BusID "PCI:0:5:0"
> EndSection
>
> Section "Monitor"
> Identifier "DPLUS93SB"
> Option "DPMS"
> EndSection
>
> Section "Screen"
> Identifier "Default Screen"
> Device "Generic Video Card"
> Monitor "DPLUS93SB"
> DefaultDepth 24
> SubSection "Display"
> Depth 1
> Modes "1600x1200" "1280x1024" "1280x960" "1152x864"
> "1024x768" "832x624" "800x600" "720x400" "640x480"
> EndSubSection
> SubSection "Display"
> Depth 4
> Modes "1600x1200" "1280x1024" "1280x960" "1152x864"
> "1024x768" "832x624" "800x600" "720x400" "640x480"
> EndSubSection
> SubSection "Display"
> Depth 8
> Modes "1600x1200" "1280x1024" "1280x960" "1152x864"
> "1024x768" "832x624" "800x600" "720x400" "640x480"
> EndSubSection
> SubSection "Display"
> Depth 15
> Modes "1600x1200" "1280x1024" "1280x960" "1152x864"
> "1024x768" "832x624" "800x600" "720x400" "640x480"
> EndSubSection
> SubSection "Display"
> Depth 16
> Modes "1600x1200" "1280x1024" "1280x960" "1152x864"
> "1024x768" "832x624" "800x600" "720x400" "640x480"
> EndSubSection
> SubSection "Display"
> Depth 24
> Modes "1600x1200" "1280x1024" "1280x960" "1152x864"
> "1024x768" "832x624" "800x600" "720x400" "640x480"
> EndSubSection
> EndSection
>
> Section "ServerLayout"
> Identifier "Default Layout"
> Screen "Default Screen"
> InputDevice "Generic Keyboard"
> InputDevice "Configured Mouse"
> EndSection
>
> Section "DRI"
> Mode 0666
> EndSection
>
>
>
>
>
> As I said before, my previous build of Xen works fine. Here's the
> difference in the kernel config files between an unstable build of Xen
> from July and the latest unstable post 3.0.3 version:
>
>
>
> 3,4c3,4
> < # Linux kernel version: 2.6.16.13-xen
> < # Tue Jul 11 14:40:35 2006
> ---
> > # Linux kernel version: 2.6.16.29-xen
> > # Mon Oct 23 13:37:44 2006
> 192a193
> > CONFIG_ARCH_ENABLE_MEMORY_HOTPLUG=y
> 2379c2380
> < CONFIG_SND_FM801_TEA575X=m
> ---
> > # CONFIG_SND_FM801_TEA575X_BOOL is not set
> 3012c3013
> < CONFIG_XEN_INTERFACE_VERSION=0x00030202
> ---
> > CONFIG_XEN_INTERFACE_VERSION=0x00030203
> 3019a3021
> > CONFIG_XEN_XENBUS_DEV=y
> 3021,3024d3022
> < CONFIG_XEN_PCIDEV_BACKEND=m
> < CONFIG_XEN_PCIDEV_BACKEND_VPCI=y
> < # CONFIG_XEN_PCIDEV_BACKEND_PASS is not set
> < # CONFIG_XEN_PCIDEV_BE_DEBUG is not set
> 3026c3024
> < CONFIG_XEN_XENBUS_DEV=y
> ---
> > CONFIG_XEN_BLKDEV_TAP=y
> 3029a3028,3032
> > CONFIG_XEN_PCIDEV_BACKEND=m
> > CONFIG_XEN_PCIDEV_BACKEND_VPCI=y
> > # CONFIG_XEN_PCIDEV_BACKEND_PASS is not set
> > # CONFIG_XEN_PCIDEV_BACKEND_SLOT is not set
> > # CONFIG_XEN_PCIDEV_BE_DEBUG is not set
>
>
>
>
>
> Does anyone know why this might be happening? Is it because of a kernel
> difference between Xen 3.0.3 and Xen 3.0.2? Is it because of a
> difference in kernel configuration?
>
>
> Any help given will be really appreciated!!
>
> Yasir
>
>
> _______________________________________________
> Xen-users mailing list
> Xen-users@xxxxxxxxxxxxxxxxxxx
> http://lists.xensource.com/xen-users
>
>
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