No video display, SuSE kernel-xen-2.6.11.4-21.7

[Robbie Dinn <robbie@microbus.com>]

Thread moved from the xen-user to xen-devel mailing list

Ian, I have done some limited testing, I will do some more,
but I wanted to report what I had so far.

I am doing this testing on my Mitac laptop but I may
switch to different hardware for future tests. There
is no serial port on the laptop and you can't change
the video card.

I am using the same linux kernel through out but changing the
Xen version each time. This wasn't what you asked me to do
but I thought it was worth doing before I got bogged down
with recompiling kernels.

I will try different kernels next.

Linux kernel is 
http://www.suse.de/~garloff/linux/xen/RPMs-93/kernel-xen-2.6.11.4-21.7.i586.rpm

--------------------------------
Xen: http://www.suse.de/~garloff/linux/xen/RPMs-92/xen-2.0.5d-1.1.i586.rpm

grub:
title XEN 9.3 /dev/system/root_9.3
     kernel (hd0,1)/i386/xen-2.0.5d-1.1.gz dom0_mem=512000
     module (hd0,1)/i386/vmlinuz-2.6.11.4-21.7-xen 
root=/dev/system/root_9.3  selinux=0  splash=silent showopts console=tty0
     module (hd0,1)/i386/initrd-2.6.11.4-21.7-xen

line from 'xm dmesg':
  Xen version 2.0 (abuild@suse.de) (gcc version 3.3.4 (pre 3.3.5 
20040809)) Mon Apr  4 04:06:20 UTC 2005
  Latest ChangeSet: information unavailable

outcome:
text consoles/virtual terminals are black (no display)
Xserver starts up fine on console 7

----------------------------------
Xen: http://www.suse.de/~garloff/linux/xen/RPMs-92/xen-2.0.6a-0.1.i586.rpm

grub:
title XEN 9.3 /dev/system/root_9.3
     kernel (hd0,1)/i386/xen-2.0.6a-0.1.gz dom0_mem=512000
     module (hd0,1)/i386/vmlinuz-2.6.11.4-21.7-xen 
root=/dev/system/root_9.3  selinux=0  splash=silent showopts console=tty0
     module (hd0,1)/i386/initrd-2.6.11.4-21.7-xen

line form 'xm dmesg':
  Xen version 2.0.6a-0.1 (abuild@suse.de) (gcc version 3.3.4 (pre 3.3.5 
20040809)) Fri Jun 10 21:05:34 UTC 2005
  Latest ChangeSet: information unavailable

outcome:
text consoles are black (no display)
X server starts up fine on console 7

---------------------------------
Xen: 
http://www.cl.cam.ac.uk/Research/SRG/netos/xen/downloads/xen-2.0.5-install.tgz

grub:
title XEN 9.3 /dev/system/root_9.3
     kernel (hd0,1)/i386/xen-2.0.5.gz dom0_mem=512000
     module (hd0,1)/i386/vmlinuz-2.6.11.4-21.7-xen 
root=/dev/system/root_9.3  selinux=0  splash=silent showopts console=tty0
     module (hd0,1)/i386/initrd-2.6.11.4-21.7-xen

line fron 'xm dmesg':
  Xen version 2.0.5 (xenod@cl.cam.ac.uk) (gcc version 3.3.3 20040412 
(Red Hat Linux 3.3.3-7)) Thu Mar 10 19:25:59 GMT 2005
  Latest ChangeSet: 2005/03/10 18:12:52 1.1717 
42308e24_-Xsew-lCWFgg_8_L8c9xQ

outcome:
text consoles are black (no display)
X server fails to start! last few lines of /var/logXorg.0.log read:

   (EE) No devices detected.

   Fatal server error:
   no screens found

And I can't see an entry for the video chip when I do
'lspci -v'...

adler:~ # lspci -v >/tmp/lspci-2.0.6-cambridge
adler:~ # diff -u /tmp/lspci-2.0.[56]-cambridge
--- /tmp/lspci-2.0.5-cambridge  2005-06-14 13:24:41.000000000 +0100
+++ /tmp/lspci-2.0.6-cambridge  2005-06-14 13:41:57.000000000 +0100
@@ -7,11 +7,19 @@
         Capabilities: [68] Power Management version 2
         Capabilities: [58] #08 [8001]

+0000:00:01.0 PCI bridge: VIA Technologies, Inc. VT8237 PCI bridge 
[K8T800 South] (prog-if 00 [Normal decode])
+       Flags: bus master, 66Mhz, medium devsel, latency 0
+       Bus: primary=00, secondary=01, subordinate=01, sec-latency=0
+       I/O behind bridge: 0000c000-0000dfff
+       Memory behind bridge: e0000000-efffffff
+       Prefetchable memory behind bridge: a0000000-afffffff
+       Capabilities: [80] Power Management version 2
+
  0000:00:09.0 CardBus bridge: ENE Technology Inc CB-710/2/4 Cardbus 
Controller (rev 01)
         Subsystem: Mitac: Unknown device 8355
         Flags: bus master, medium devsel, latency 168
         Memory at 40000000 (32-bit, non-prefetchable) [size=4K]
-       Bus: primary=00, secondary=01, subordinate=04, sec-latency=176
+       Bus: primary=00, secondary=02, subordinate=05, sec-latency=176
         Memory window 0: 1f400000-1f7ff000
         Memory window 1: 1f800000-1fbff000
         I/O window 0: 00004000-000040ff
@@ -103,3 +111,12 @@
  0000:00:18.3 Host bridge: Advanced Micro Devices [AMD] K8 
[Athlon64/Opteron] Miscellaneous Control
         Flags: fast devsel

+0000:01:00.0 VGA compatible controller: ATI Technologies Inc RV350 
[Mobility Radeon 9600 M10] (prog-if 00 [VGA])
+       Subsystem: Mitac: Unknown device 8355
+       Flags: bus master, 66Mhz, medium devsel, latency 128, IRQ 11
+       Memory at a8000000 (32-bit, prefetchable) [size=128M]
+       I/O ports at c100 [size=256]
+       Memory at e0010000 (32-bit, non-prefetchable) [size=64K]
+       Capabilities: [58] AGP version 3.0
+       Capabilities: [50] Power Management version 2
+
adler:~ #
----------------------------------
Xen: 
http://www.cl.cam.ac.uk/Research/SRG/netos/xen/downloads/xen-2.0.6-install.tgz

grub:
title XEN 9.3 /dev/system/root_9.3
     kernel (hd0,1)/i386/xen-2.0.6.gz dom0_mem=512000
     module (hd0,1)/i386/vmlinuz-2.6.11.4-21.7-xen 
root=/dev/system/root_9.3  selinux=0  splash=silent showopts console=tty0
     module (hd0,1)/i386/initrd-2.6.11.4-21.7-xen

lines from 'xm dmesg':
  Xen version 2.0.6 (xenod@cl.cam.ac.uk) (gcc version 3.3.3 20040412 
(Red Hat Linux 3.3.3-7)) Sun May 22 11:31:19 BST 2005
  Latest ChangeSet: 2005/05/22 11:30:28 1.1720 
42905f44tK_V2k-UIPH1EmnW4Bg6Dg

outcome:
text consoles are black (no display)
X server starts up fine on console 7

----------------------------------
Xen: 
http://www.cl.cam.ac.uk/Research/SRG/netos/xen/downloads/xen-2.0-testing-install.tgz

grub:
title XEN 9.3 /dev/system/root_9.3
     kernel (hd0,1)/i386/xen-2.0-testing.gz dom0_mem=512000
     module (hd0,1)/i386/vmlinuz-2.6.11.4-21.7-xen 
root=/dev/system/root_9.3  selinux=0  splash=silent showopts console=tty0
     module (hd0,1)/i386/initrd-2.6.11.4-21.7-xen

lines from 'xm dmesg':
  Xen version 2.0-testing (xenod@cl.cam.ac.uk) (gcc version 3.3.3 
20040412 (Red Hat Linux 3.3.3-7)) Mon Jun 13 03:16:59 BST 2005
  Latest ChangeSet: 2005/06/10 17:15:35 1.1900 
42a9bca7SPmMRozAfET0WOMKS0VQZA

outcome:
text consoles are black (no display)
X server starts up fine on console 7