Okay ... so let's have a look at your Xorg.log ...
(WW) The directory "/var/lib/defoma/x-ttcidfont-conf.d/dirs/TrueType" does not exist.
There is something wrong with "defoma", the DEbian FOnt MAnager. It should not be needed, but I never tried without, as it is installed by default. When I do a search for "defoma", I get these packages listed and installed for me:
defoma fontconfig lmodern x-ttcidfont-conf
Purge them, reinstall them.
(WW) Open ACPI failed (/var/run/acpid.socket) (No such file or directory)
(II) No APM support in BIOS or kernel
This is not a fatal error, but it looks like your intel driver is not really lucky with your hardware.
Your kernel should have ACPI support. Is it disabled in BIOS? Is there a reason for you to do so?
Install "acpid" and see if this warning goes away.
(WW) intel(0): ESR is 0x00000010, page table error
(WW) intel(0): PGTBL_ER is 0x00000039
(WW) intel(0): PRB0_HEAD (0x01010000) and PRB0_TAIL (0x00000000) indicate ring buffer not flushed
(WW) intel(0): Existing errors found in hardware state.
As I said, your intel diver does not seem to be very happy.
Change the device section of your Xorg.conf like this:
Identifier "Configured Video Device"
(I expect "xserver-xorg-video-vesa" to be installed)
vesa is an inferior driver and will give you a low resolution. But this is better than no X at all.
If this solves your problem, see here:
for how to improve your Xorg.conf.