[STAGING] nVidia graphics are broken on linux-image-2.6.35-25

I'm using Kubuntu 10.10 i386 and an nVidia GeForce 9500 GT with proprietary drivers.
After upgrading to 2.6.35-25 (mesa?) graphics are broken. With this I mean:

1) When booting normally, it stucks at the boot logo, long before kdm.
2) When booting in recovery mode, I can see few lines of the kernel starting up which stuck and, later, a few green artifacts on the screen above the kernel lines.

It's very similar to bug #703553 , but I can't access the tty shell both by pressing Ctrl + Alt + F1 and by entering recovery mode, making it impossibile for me to install nvidia proprietary drivers against this kernel and, obviously, using my pc as normal.

2.6.35-24 is the latest working release.

$ lsb_release -a
No LSB modules are available.
Distributor ID: Ubuntu
Description: Ubuntu 10.10
Release: 10.10
Codename: maverick

$ apt-cache policy linux-image-2.6.35-25-generic-pae
linux-image-2.6.35-25-generic-pae:
  Installato: 2.6.35-25.43
  Candidato: 2.6.35-25.43
  Tabella versione:
 *** 2.6.35-25.43 0
        500 http://it.archive.ubuntu.com/ubuntu/ maverick-proposed/main i386 Packages
        100 /var/lib/dpkg/status

ProblemType: Bug
DistroRelease: Ubuntu 10.10
Package: linux-image-2.6.35-25-generic-pae 2.6.35-25.43
Regression: Yes
Reproducible: Yes
ProcVersionSignature: Ubuntu 2.6.35-24.42-generic-pae 2.6.35.8
Uname: Linux 2.6.35-24-generic-pae i686
NonfreeKernelModules: nvidia
AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.23.
Architecture: i386
ArecordDevices:
 **** List of CAPTURE Hardware Devices ****
 card 0: XFi [Creative X-Fi], device 0: ctxfi [Front/WaveIn]
   Subdevices: 1/1
   Subdevice #0: subdevice #0
AudioDevicesInUse:
 USER PID ACCESS COMMAND
 /dev/snd/controlC0: montblanc 6360 F.... pulseaudio
 /dev/snd/pcmC0D0p: montblanc 6360 F...m pulseaudio
CRDA: Error: [Errno 2] File o directory non esistente
Card0.Amixer.info:
 Card hw:0 'XFi'/'Creative X-Fi 20K1 Unknown'
   Mixer name : '20K1'
   Components : ''
   Controls : 30
   Simple ctrls : 11
Date: Thu Jan 20 21:00:11 2011
HibernationDevice: RESUME=UUID=0e73ad5b-1423-466c-88a9-1446e35bbfc8
IwConfig:
 lo no wireless extensions.

 eth0 no wireless extensions.

 vboxnet0 no wireless extensions.
MachineType: System manufacturer System Product Name
ProcCmdLine: BOOT_IMAGE=/boot/vmlinuz-2.6.35-24-generic-pae root=UUID=44b108cf-a586-455a-a048-6f4660ab68b4 ro quiet splash ipv6.disable=1 pata_ali.atapi_dma=1 nomodeset video=uvesafb:mode_option=1440x900-24,mtrr=3,scroll=ywrap
ProcEnviron:
 LANGUAGE=it_IT:it:en_GB:en
 PATH=(custom, user)
 LANG=it_IT.UTF-8
 SHELL=/bin/bash
RelatedPackageVersions: linux-firmware 1.38.3
RfKill:
 0: hci0: Bluetooth
  Soft blocked: no
  Hard blocked: no
SourcePackage: linux
StagingDrivers: ramzswap
Title: [STAGING]
UserAsoundrc:
 # ALSA library configuration file

 # Include settings that are under the control of asoundconf(1).
 # (To disable these settings, comment out this line.)
 </home/montblanc/.asoundrc.asoundconf>
WpaSupplicantLog:

dmi.bios.date: 12/09/2008
dmi.bios.vendor: American Megatrends Inc.
dmi.bios.version: 0605
dmi.board.asset.tag: To Be Filled By O.E.M.
dmi.board.name: A8R-MVP
dmi.board.vendor: ASUSTeK Computer INC.
dmi.board.version: Rev 1.xx
dmi.chassis.asset.tag: Asset-1234567890
dmi.chassis.type: 3
dmi.chassis.vendor: Chassis Manufacture
dmi.chassis.version: Chassis Version
dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvr0605:bd12/09/2008:svnSystemmanufacturer:pnSystemProductName:pvrSystemVersion:rvnASUSTeKComputerINC.:rnA8R-MVP:rvrRev1.xx:cvnChassisManufacture:ct3:cvrChassisVersion:
dmi.product.name: System Product Name
dmi.product.version: System Version
dmi.sys.vendor: System manufacturer