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I'm unable to install Jaunty on Fujitsu Stylistic ST4120PW tabletpc
computer. It has Intel 830M graphics controller. When I try to install
from a cd, it prepares to launch X, after starting it blinks screen a
few times, and finally I get black screen with vertical white stripes
growing for a few seconds and finally filling whole screen. The system
underneath doesn't crash. I can switch to text console and it works, and
then when returning to X just the same white stripes appear. Sometimes,
but not always, when switching console from text mode to X I can see X
desktop for a split second just after the switch, but it instantly
disappears and the stripes start to fade black to white. Oh, and stripes
are not exactly the same every time, sometimes there are more stripes,
and sometimes less.

Exactly the same happens when trying to install in safe mode.

I tried switching drivers manually by editing xorg.conf, and this is
what happens when trying to start X after edits (the xorg.conf file is
all default, with just 'Driver ...' line added):

1) Driver "intel"
result: 
(EE) intel(0): sil164 not detected got 5: from DVOI2C_E Slave 112.
(EE) intel(0): tfp410 not detected got VID 1305: from VOI2C_E Slave 112.
(EE) intel(0): No valid modes.
(EE) Screen(s) found, but none have a usable configuration.

Above messages appear about 2 seconds after running 'X' and show after a
split-second black screen.

2) Driver 'i810'
result:
(EE) No devices detected.

This time the messages appear after about 1 second and a split-second
black screen. I don't know if this driver is supposes to support 830M or
not, I just gave it a try.

3) And finally: Driver 'vesa'
result:
After running 'X' it shows black screen for about 10 seconds, then it turns off the backlight for about 2 seconds, and then it turns on the backlight again and start the black to white stripes fading. Switching to the text console from which I started X shows some logs, but they are related to XKEYBOARD, so I don't consider them important.

In Xorg.0.log I can find lines about different modules loading. Some maybe interesting lines are:
(II) VESA(0): Not using built-in mode  "640x480" (no mode of this name)
...
(WW) VESA(0): No valid modes left. Trying less strict filter
...
(**) VESA(0): Using "Shadow Framebuffer"
...

I'll try to attach the whole file.

I have also tried installing 8.10 and the results are exactly the same.
If I'll find earlier versions' discs I'll try them too.

** Affects: xserver-xorg-video-intel (Ubuntu)
     Importance: Undecided
         Status: Confirmed

-- 
[i830] Installer unable to launch Xorg on Fujitsu Stylistic ST4120PW
https://bugs.launchpad.net/bugs/362582
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