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Kernel upgrade problems (again) - 2.6.11 -> 2.6.18, video pooched



I tried upgrading the kernel today on my machine and have a problem 
that is very similar to about a year ago... that I never completely 
figured-out.  

I think the problem I'm having is the same as before-- and it's described here:

  http://lists.debian.org/debian-user/2006/07/msg03029.html

I downgraded the kernel to 2.6.11 (in Jul 2006) when I encountered the 
problem-- and the problems all went away.  

Someone suggested the problem is hotplug... this time I purged hotplug with:
# aptitude purge hotplug

-----
Today I upgraded to 2.6.18-3-686 from kernel-image-2.6.11-1-686 (image for version 2.6.11 on PPro/Celeron/PII/PIII/P4).

# apt-get install linux-image-2.6.18-3-686 
Reading package lists... Done
Building dependency tree... Done
The following extra packages will be installed:
  initramfs-tools
Suggested packages:
  linux-doc-2.6.18
Recommended packages:
  libc6-i686
The following NEW packages will be installed:
  initramfs-tools linux-image-2.6.18-3-686
0 upgraded, 2 newly installed, 0 to remove and 4 not upgraded.
Need to get 16.8MB of archives.
After unpacking 51.2MB of additional disk space will be used.
Do you want to continue [Y/n]? Y   
Get:1 http://ftp.is.debian.org testing/main initramfs-tools 0.85e [62.5kB]
Get:2 http://ftp.is.debian.org testing/main linux-image-2.6.18-3-686 2.6.18-7 [16.7MB]
Fetched 16.8MB in 30s (541kB/s)
Preconfiguring packages ...
Selecting previously deselected package initramfs-tools.
(Reading database ... 96363 files and directories currently installed.)
Unpacking initramfs-tools (from .../initramfs-tools_0.85e_all.deb) ...
Selecting previously deselected package linux-image-2.6.18-3-686.
Unpacking linux-image-2.6.18-3-686 (from .../linux-image-2.6.18-3-686_2.6.18-7_i386.deb) ...
Done.
Setting up initramfs-tools (0.85e) ...
Installing new version of config file /etc/initramfs-tools/initramfs.conf ...
/boot/initrd.img-2.6.11-1-686 has been altered. Cannot update.

Setting up linux-image-2.6.18-3-686 (2.6.18-7) ...

 Hmm. The package shipped with a symbolic link /lib/modules/2.6.18-3-686/source
 However, I can not read the target: No such file or directory
 Therefore, I am deleting /lib/modules/2.6.18-3-686/source

Running depmod.
Finding valid ramdisk creators.
Using mkinitramfs-kpkg to build the ramdisk.
You already have a LILO configuration in /etc/lilo.conf
Running boot loader as requested
Testing lilo.conf ...
Testing successful.
Installing the partition boot sector...
Running /sbin/lilo  ...
Installation successful.

cobalamin:/home/michael#            
# apt-get install libc6-i686
Reading package lists... Done
Building dependency tree... Done
The following NEW packages will be installed:
  libc6-i686
0 upgraded, 1 newly installed, 0 to remove and 4 not upgraded.
Need to get 1117kB of archives.
After unpacking 2535kB of additional disk space will be used.
Get:1 http://ftp.is.debian.org testing/main libc6-i686 2.3.6.ds1-11 [1117kB]
Fetched 1117kB in 3s (302kB/s)
Selecting previously deselected package libc6-i686.
(Reading database ... 98546 files and directories currently installed.)
Unpacking libc6-i686 (from .../libc6-i686_2.3.6.ds1-11_i386.deb) ...
Setting up libc6-i686 (2.3.6.ds1-11) ...
cobalamin:/home/michael#      

-----copying bootsector
# dd if=/dev/hda3 of=/home/michael/transfer/bootsect-2.6.18-3.lnx bs=512 count=1
1+0 records in
1+0 records out
512 bytes transferred in 0.076084 seconds (6729 bytes/sec)

-----boot into windows.... replace stuff 
-----edit "C:\boot.ini
-----reboot

Upgrade worked but... -- it's new kernel
$  more /proc/version
Linux version 2.6.18-3-686 (Debian 2.6.18-7) (waldi@debian.org) (gcc version 4.1
.2 20061115 (prerelease) (Debian 4.1.1-20)) #1 SMP Mon Dec 4 16:41:14 UTC 2006
michael@cobalamin:~$

-sound pooched -->> not much of a concern... at the moment.
-video pooched -->>  there are horizontal line -- that come and go (it sort 
of looks like the refresh rate is too high).  I didn't change any settings in X.  
I noticed a fuzziness in the text -- while linux booted up.  The video problem 
were not seen in with the older kernel and were not seen in Windoze XP.


Is this somehow related to libc6 ???
Could this be a driver issue?

Aside from that... I don't understand the consequence of:
---
 Hmm. The package shipped with a symbolic link /lib/modules/2.6.18-3-686/source
 However, I can not read the target: No such file or directory
 Therefore, I am deleting /lib/modules/2.6.18-3-686/source
---


Any suggestions would be much appreciated. -Thanks, Michael

========================================
System/Hardware
========================================
Toshiba Satellite A20 -- A20-31Q: 2.53GHz (PSA20C-0231Q)
Processor: Intel Pentium IV, 2.53GHz
Memory: 512 MB
Install log: http://individual.utoronto.ca/bonert/debian_install.html

Debian GNU/Linux release: testing
Kernel: Linux version 2.6.11-1-686 (dannf@firetheft) (gcc version 3.3.6 
        (Debian 1:3.3.6-6)) #1 Mon Jun 20 22:00:38 MDT 2005
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