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I have installed Ubuntu 10.10 (32 bit) on a 'budget' SandyBridge PC. The moterhboard is Asrock h67m. No extra graphic card. When I try to use 'Normal' or 'Extra' Visual effect I get this message:

Desktop effects could not be enabled

here is the lspci result:

00:00.0 Host bridge: Intel Corporation Sandy Bridge DRAM Controller (rev 09)
00:02.0 VGA compatible controller: Intel Corporation Sandy Bridge Integrated Graphics Controller (rev 09)
00:16.0 Communication controller: Intel Corporation Cougar Point HECI Controller #1 (rev 04)
00:1a.0 USB Controller: Intel Corporation Cougar Point USB Enhanced Host Controller #2 (rev 05)
00:1b.0 Audio device: Intel Corporation Cougar Point High Definition Audio Controller (rev 05)
00:1c.0 PCI bridge: Intel Corporation Cougar Point PCI Express Root Port 1 (rev b5)
00:1c.2 PCI bridge: Intel Corporation Cougar Point PCI Express Root Port 3 (rev b5)
00:1c.3 PCI bridge: Intel Corporation 82801 PCI Bridge (rev b5)
00:1c.4 PCI bridge: Intel Corporation Cougar Point PCI Express Root Port 5 (rev b5)
00:1d.0 USB Controller: Intel Corporation Cougar Point USB Enhanced Host Controller #1 (rev 05)
00:1f.0 ISA bridge: Intel Corporation Cougar Point LPC Controller (rev 05)
00:1f.2 IDE interface: Intel Corporation Cougar Point 4 port SATA IDE Controller (rev 05)
00:1f.3 SMBus: Intel Corporation Cougar Point SMBus Controller (rev 05)
00:1f.5 IDE interface: Intel Corporation Cougar Point 2 port SATA IDE Controller (rev 05)
02:00.0 USB Controller: Device 1b6f:7023 (rev 01)
03:00.0 PCI bridge: Device 1b21:1080 (rev 01)
05:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL8111/8168B PCI Express Gigabit Ethernet controller (rev 06

Problems that I have which may be relevant:

  • Sometimes the display starts to flicker for a few minutes in random intervals and then comes back to normal.
  • Usually I see some random red pixels appear on the black sides of the monitor.
  • I could not update the MB's BIOS.
  • In general the graphic performance is less than what I had with Intel core due on a Dell Optiplex 755.

I appreciate your suggestions.

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closed as too localized by Luis Mar 14 '13 at 16:12

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Are you sure you installed Ubuntu 10.10? Ubuntu 10.04 is the most recent LTS release, and Ubuntu 11.10 has just been released. Your SandyBridge is not well supported by Ubuntu 10.10. –  RAOF Oct 14 '11 at 6:19
    
Yep,I'm using 10.10. Just been reluctant to dist-upgrade because don't like the Unity Shell. Are you suggesting that I should dist-upgrade to be get rid of the problem? –  corev Oct 16 '11 at 17:55
    
Yes. From memory, there was no 3D support for SandyBridge in 10.10 at all. –  RAOF Oct 16 '11 at 21:54
    
RAOF, I upgraded my Ubuntu to 11.10. Have not seen flickering screens yet, but the weird red dots in black contexts still show up. Wouldn't it better to buy an Ubunut-friendly graphic card (what model?) and stop relying on Intel's integrated graphic? –  corev Oct 17 '11 at 21:30
    
The Intel integrated graphics are Ubuntu friendly (at least as of 11.10, which is new enough to support them properly). Can you grab a screenshot of the red pixels? If not, can you grab a photograph of the red pixels? –  RAOF Oct 17 '11 at 21:37

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