Kernel          : Linux 4.4.0-131-generic (i686)
Compiled                : #157-Ubuntu SMP Thu Jul 12 15:49:15 UTC 2018
Distribution            : Ubuntu 16.04.5 LTS

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  With a (cheap) video card in PCI Geforce 6200 (NV44A) with 256Mb video
  memory misdetected as 512 Mb : result was kernel panic in worst case
  and memory crash in best case

Status in linux package in Ubuntu:

Bug description:
  Under XP
  card detected as



  memory range 94000000 94FFFFFF
  memory range C0000000 DFFFFFFF
  memory range 92000000 92FFFFFF
  IRQ 09
  IO range 03B0 03BB
  IO range 03C0 03DF
  memory range 000A0000 000BFFFF

  Processeur graphique :                GeForce 6200
  Version du pilote :   307.83
  Prise en charge DirectX :     9.0c
  Horloge principale :  300 MHz 
  Débit de données mémoire :    1064 MHz
  Interface de mémoire :        64 bits 
  Mémoire :             256 Mo
  Type de mémoire :     DDR2
  Version BIOS vidéo :  5.44.A2.10.26
  IRQ :                 9
  Bus :                 PCI

  correctly detected as 256Mb and working

  Under linux
  file /var/log/Xorg.0.log
  contains 18.759] (--) PCI: (0:3:9:0) 10de:0221:0000:0000 rev 161, Mem @ 
0x94000000/16777216, 0xc0000000/536870912, 0x92000000/16777216, BIOS @ 
  card bad detection ... 0xc0000000/536870912 correct adress, wrong size 
536870912 soit 512Mo

  output of:

  sudo lshw -C display; lsb_release -a; uname -a


  jean@jean-Soisy:~$ sudo lshw -C display; lsb_release -a; uname -a
  [sudo] password for jean:
         description: Display controller
         produit: 82865G Integrated Graphics Controller
         fabriquant: Intel Corporation
         identifiant matériel: 2
         information bus: pci@0000:00:02.0
         version: 02
         bits: 32 bits
         horloge: 33MHz
         fonctionnalités: pm bus_master cap_list rom
         configuration: driver=i915 latency=0
         ressources: irq:16 mémoire:a0000000-a7ffffff mémoire:90000000-9007ffff 
         description: VGA compatible controller
         produit: NV44A [GeForce 6200]
         fabriquant: NVIDIA Corporation
         identifiant matériel: 9
         information bus: pci@0000:03:09.0
         version: a1
         bits: 32 bits
         horloge: 66MHz
         fonctionnalités: pm vga_controller bus_master cap_list rom
         configuration: driver=nouveau latency=40 maxlatency=1 mingnt=5
         ressources: irq:21 mémoire:94000000-94ffffff mémoire:c0000000-dfffffff 
mémoire:92000000-92ffffff mémoire:e0000000-e001ffff
  No LSB modules are available.
  Distributor ID:    Ubuntu
  Description:    Ubuntu 14.04.5 LTS
  Release:    14.04
  Codename:    trusty
  Linux jean-Soisy 3.13.0-135-generic #184-Ubuntu SMP Wed Oct 18 11:56:31 UTC 
2017 i686 i686 i686 GNU/Linux

  Attempted to find  where the memory size detection lies in the code,
  but was too far in the labyrinth for me.


  Jean COLIN
  ApportVersion: 2.14.1-0ubuntu3.27
  Architecture: i386
   /dev/snd/controlC1:  jean       2206 F.... pulseaudio
   /dev/snd/controlC0:  jean       2206 F.... pulseaudio
  CurrentDesktop: XFCE
  DistroRelease: Ubuntu 14.04
  HibernationDevice: RESUME=UUID=2ae1454f-4490-4a9a-aea5-55daa49c243c
  InstallationDate: Installed on 2015-08-08 (985 days ago)
  InstallationMedia: Xubuntu 12.04.3 LTS "Precise Pangolin" - Release i386 
  MachineType: IBM 8429RG7
  Package: linux (not installed)
   0 inteldrmfb
   1 nouveaufb
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.13.0-144-generic 
root=UUID=0f7280ad-8482-48be-9433-13ca09f7304a ro quiet splash vt.handoff=7
  ProcVersionSignature: Ubuntu 3.13.0-144.193-generic 3.13.11-ckt39
   linux-restricted-modules-3.13.0-144-generic N/A
   linux-backports-modules-3.13.0-144-generic  N/A
   linux-firmware                              1.127.24
   0: phy0: Wireless LAN
        Soft blocked: no
        Hard blocked: no
  Tags:  trusty
  Uname: Linux 3.13.0-144-generic i686
  UpgradeStatus: Upgraded to trusty on 2015-08-08 (985 days ago)
  UserGroups: adm cdrom dialout dip lpadmin plugdev sambashare sudo
  _MarkForUpload: True
  dmi.bios.date: 07/06/2005
  dmi.bios.vendor: IBM
  dmi.bios.version: 2AKT51AUS
  dmi.board.name: IBM
  dmi.board.vendor: IBM
  dmi.chassis.asset.tag: ������������������������
  dmi.chassis.type: 4
  dmi.chassis.vendor: IBM
  dmi.product.name: 8429RG7
  dmi.sys.vendor: IBM

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