I followed a tip to reduce color usage on my ubuntu 7.10 in order to improve my computer's speed. The tip called for entering 'sudo gedit /etc/X11/xorg.conf' in terminal and changing the color depth from 24 to 16. In doing so, my computer actually ran a lot faster. But, when I look at a movie, it comes out very pixelated. I then changed the color depth back to 24 which makes it sluggish to being with. Is there a way I can reduce the color depth without sacrificing movie quality?

Jomen, if you're reading this, I hope you can help me with this one.

.

First lets find some info on your machine:
Then look in /etc/X11/xorg.conf or in /var/log/Xorg.0.log for info on what driver for your video card is in use.

to scan manually throug the whole thing
might find it faster
You can use any editor instead of "less" - but it is a quicker way to me.

[edit]
while we are at it - please also post the output of this command:

Hi, jomen. Thanks for replying. I upgraded to 8.04 yesterday, just to let you know. Here's info from lspci -v:

x@xx:~$ lspci -v
00:00.0 Host bridge: Intel Corporation 82852/82855 GM/GME/PM/GMV Processor to I/O Controller (rev 02)
Subsystem: Rioworks Unknown device 203e
Flags: bus master, fast devsel, latency 0
Memory at <unassigned> (32-bit, prefetchable)
Capabilities: <access denied>

00:00.1 System peripheral: Intel Corporation 82852/82855 GM/GME/PM/GMV Processor to I/O Controller (rev 02)
Subsystem: Rioworks Unknown device 203e
Flags: bus master, fast devsel, latency 0

00:00.3 System peripheral: Intel Corporation 82852/82855 GM/GME/PM/GMV Processor to I/O Controller (rev 02)
Subsystem: Rioworks Unknown device 203e
Flags: bus master, fast devsel, latency 0

00:02.0 VGA compatible controller: Intel Corporation 82852/855GM Integrated Graphics Device (rev 02) (prog-if 00 [VGA controller])
Subsystem: Rioworks Unknown device 203e
Flags: bus master, fast devsel, latency 0, IRQ 18
Memory at e8000000 (32-bit, prefetchable) [size=128M]
Memory at e0000000 (32-bit, non-prefetchable) [size=512K]
I/O ports at 1800 [size=8]
Capabilities: <access denied>

00:02.1 Display controller: Intel Corporation 82852/855GM Integrated Graphics Device (rev 02)
Subsystem: Rioworks Unknown device 203e
Flags: bus master, fast devsel, latency 0
Memory at f0000000 (32-bit, prefetchable) [size=128M]
Memory at e0080000 (32-bit, non-prefetchable) [size=512K]
Capabilities: <access denied>

00:1d.0 USB Controller: Intel Corporation 82801DB/DBL/DBM (ICH4/ICH4-L/ICH4-M) USB UHCI Controller #1 (rev 03) (prog-if 00 [UHCI])
Subsystem: Rioworks Unknown device 203e
Flags: bus master, medium devsel, latency 0, IRQ 18
I/O ports at 1820 [size=32]

00:1d.1 USB Controller: Intel Corporation 82801DB/DBL/DBM (ICH4/ICH4-L/ICH4-M) USB UHCI Controller #2 (rev 03) (prog-if 00 [UHCI])
Subsystem: Rioworks Unknown device 203e
Flags: bus master, medium devsel, latency 0, IRQ 16
I/O ports at 1840 [size=32]

00:1d.2 USB Controller: Intel Corporation 82801DB/DBL/DBM (ICH4/ICH4-L/ICH4-M) USB UHCI Controller #3 (rev 03) (prog-if 00 [UHCI])
Subsystem: Rioworks Unknown device 203e
Flags: bus master, medium devsel, latency 0, IRQ 19
I/O ports at 1860 [size=32]

00:1d.7 USB Controller: Intel Corporation 82801DB/DBM (ICH4/ICH4-M) USB2 EHCI Controller (rev 03) (prog-if 20 [EHCI])
Subsystem: Rioworks Unknown device 203e
Flags: bus master, medium devsel, latency 0, IRQ 20
Memory at e0100000 (32-bit, non-prefetchable) [size=1K]
Capabilities: <access denied>

00:1e.0 PCI bridge: Intel Corporation 82801 Mobile PCI Bridge (rev 83) (prog-if 00 [Normal decode])
Flags: bus master, fast devsel, latency 0
Bus: primary=00, secondary=02, subordinate=06, sec-latency=216
Memory behind bridge: e0200000-e02fffff

00:1f.0 ISA bridge: Intel Corporation 82801DBM (ICH4-M) LPC Interface Bridge (rev 03)
Flags: bus master, medium devsel, latency 0

00:1f.1 IDE interface: Intel Corporation 82801DBM (ICH4-M) IDE Controller (rev 03) (prog-if 8a [Master SecP PriP])
Subsystem: Rioworks Unknown device 203e
Flags: bus master, medium devsel, latency 0, IRQ 19
I/O ports at 01f0 [size=8]
I/O ports at 03f4 [size=1]
I/O ports at 0170 [size=8]
I/O ports at 0374 [size=1]
I/O ports at 1810 [size=16]
Memory at 70000000 (32-bit, non-prefetchable) [size=1K]

00:1f.3 SMBus: Intel Corporation 82801DB/DBL/DBM (ICH4/ICH4-L/ICH4-M) SMBus Controller (rev 03)
Subsystem: Rioworks Unknown device 203e
Flags: medium devsel, IRQ 10
I/O ports at 1880 [size=32]

00:1f.5 Multimedia audio controller: Intel Corporation 82801DB/DBL/DBM (ICH4/ICH4-L/ICH4-M) AC'97 Audio Controller (rev 03)
Subsystem: Rioworks Unknown device 203e
Flags: bus master, medium devsel, latency 0, IRQ 17
I/O ports at 1c00 [size=256]
I/O ports at 18c0 [size=64]
Memory at e0100c00 (32-bit, non-prefetchable) [size=512]
Memory at e0100800 (32-bit, non-prefetchable) [size=256]
Capabilities: <access denied>

00:1f.6 Modem: Intel Corporation 82801DB/DBL/DBM (ICH4/ICH4-L/ICH4-M) AC'97 Modem Controller (rev 03) (prog-if 00 [Generic])
Subsystem: Rioworks Unknown device 2030
Flags: bus master, medium devsel, latency 0, IRQ 17
I/O ports at 2400 [size=256]
I/O ports at 2000 [size=128]
Capabilities: <access denied>

02:07.0 CardBus bridge: Texas Instruments PCIxx21/x515 Cardbus Controller
Subsystem: Rioworks Unknown device 203e
Flags: bus master, medium devsel, latency 168, IRQ 16
Memory at e020a000 (32-bit, non-prefetchable) [size=4K]
Bus: primary=02, secondary=03, subordinate=06, sec-latency=176
Memory window 0: 74000000-77fff000 (prefetchable)
Memory window 1: 78000000-7bfff000
I/O window 0: 00001400-000014ff
I/O window 1: 00002800-000028ff
16-bit legacy interface ports at 0001

02:07.2 FireWire (IEEE 1394): Texas Instruments OHCI Compliant IEEE 1394 Host Controller (prog-if 10 [OHCI])
Subsystem: Rioworks Unknown device 203e
Flags: bus master, medium devsel, latency 32, IRQ 16
Memory at e0209000 (32-bit, non-prefetchable) [size=2K]
Memory at e0200000 (32-bit, non-prefetchable) [size=16K]
Capabilities: <access denied>

02:07.3 Mass storage controller: Texas Instruments PCIxx21 Integrated FlashMedia Controller
Subsystem: Rioworks Unknown device 203e
Flags: bus master, medium devsel, latency 57, IRQ 16
Memory at e0204000 (32-bit, non-prefetchable) [size=8K]
Capabilities: <access denied>

02:08.0 Ethernet controller: Broadcom Corporation BCM4401 100Base-T (rev 01)
Subsystem: Rioworks Unknown device 203e
Flags: bus master, fast devsel, latency 32, IRQ 17
Memory at e0206000 (32-bit, non-prefetchable) [size=8K]
Capabilities: <access denied>

02:09.0 Network controller: Intel Corporation PRO/Wireless 2200BG Network Connection (rev 05)
Subsystem: Intel Corporation Unknown device 2701
Flags: bus master, medium devsel, latency 32, IRQ 17
Memory at e0208000 (32-bit, non-prefetchable) [size=4K]
Capabilities: <access denied>

-------------------
-------------------------------------------------------------------------

Next, is the results of 'less /var/log/Xorg.0.log'. Since it was pretty long, I had to cut out huge chunks. I hope I didn't cut out anything relevant. Here it is:


X.Org X Server 1.4.0.90
Release Date: 5 September 2007
X Protocol Version 11, Revision 0
Build Operating System: Linux Ubuntu (xorg-server 2:1.4.1~git20080131-1ubuntu9)
Current Operating System: Linux xx 2.6.24-16-generic #1 SMP Thu Apr 10 13:23:42 UTC 2008 i686
Build Date: 15 April 2008 05:26:17PM

(**) | |-->Device "Intel Corporation 82852/855GM Integrated Graphics Device"

(==) RgbPath set to "/etc/X11/rgb"
(==) ModulePath set to "/usr/lib/xorg/modules"
(II) Open ACPI successful (/var/run/acpid.socket)
(II) Loader magic: 0x81dc500
(II) Module ABI versions:
X.Org ANSI C Emulation: 0.3
X.Org Video Driver: 2.0
X.Org XInput driver : 2.0
X.Org Server Extension : 0.3
X.Org Font Renderer : 0.5
(II) Loader running on linux
(II) LoadModule: "pcidata"
(II) Loading /usr/lib/xorg/modules//libpcidata.so
(II) Module pcidata: vendor="X.Org Foundation"
compiled for 1.4.0.90, module version = 1.0.0
ABI class: X.Org Video Driver, version 2.0
(++) using VT number 7

(II) PCI-to-CardBus bridge:
(II) Bus 3: bridge is at (2:7:0), (2,3,6), BCTRL: 0x05c0 (VGA_EN is cleared)
(--) PCI:*(0:2:0) Intel Corporation 82852/855GM Integrated Graphics Device rev 2, Mem @ 0xe8000000/27, 0xe0000000/19, I/O @ 0x1800/3
(--) PCI: (0:2:1) Intel Corporation 82852/855GM Integrated Graphics Device rev 2, Mem @ 0xf0000000/27, 0xe0080000/19

(II) LoadModule: "intel"
(II) Loading /usr/lib/xorg/modules/drivers//intel_drv.so
(II) Module intel: vendor="X.Org Foundation"
compiled for 1.4.0.90, module version = 2.2.1
Module class: X.Org Video Driver
ABI class: X.Org Video Driver, version 2.0
(II) LoadModule: "kbd"
(II) Loading /usr/lib/xorg/modules/input//kbd_drv.so
(II) Module kbd: vendor="X.Org Foundation"
compiled for 1.4.0, module version = 1.2.2
Module class: X.Org XInput Driver
ABI class: X.Org XInput driver, version 2.0
(II) LoadModule: "mouse"
(II) Loading /usr/lib/xorg/modules/input//mouse_drv.so
(II) Module mouse: vendor="X.Org Foundation"
compiled for 1.4.0, module version = 1.2.3
Module class: X.Org XInput Driver
ABI class: X.Org XInput driver, version 2.0
(II) LoadModule: "synaptics"
(II) Loading /usr/lib/xorg/modules/input//synaptics_drv.so
(II) Module synaptics: vendor="X.Org Foundation"
compiled for 4.3.99.902, module version = 1.0.0
Module class: X.Org XInput Driver
ABI class: X.Org XInput driver, version 2.0
(II) intel: Driver for Intel Integrated Graphics Chipsets: i810,
i810-dc100, i810e, i815, i830M, 845G, 852GM/855GM, 865G, 915G,
E7221 (i915), 915GM, 945G, 945GM, 945GME, 965G, G35, 965Q, 946GZ,
965GM, 965GME/GLE, G33, Q35, Q33, Intel Integrated Graphics Device
(II) Primary Device is: PCI 00:02:0
(--) Chipset 852GM/855GM found

(==) intel(0): Default visual is TrueColor
(II) intel(0): Integrated Graphics Chipset: Intel(R) 855GM
(--) intel(0): Chipset: "852GM/855GM"
(--) intel(0): Linear framebuffer at 0xE8000000

(II) intel(0): VESA VBE Total Mem: 32576 kB
(II) intel(0): VESA VBE OEM: Intel(r)852GM/852GME/855GM/855GME Graphics Chip Accelerated VGA BIOS
(II) intel(0): VESA VBE OEM Software Rev: 1.0
(II) intel(0): VESA VBE OEM Vendor: Intel Corporation
(II) intel(0): VESA VBE OEM Product: Intel(r)852GM/852GME/855GM/855GME Graphics Controller
(II) intel(0): VESA VBE OEM Product Rev: Hardware Version 0.0
(II) intel(0): I2C bus "DVODDC_D" initialized.
(II) Loading sub module "sil164"
(II) LoadModule: "sil164"
(II) Loading /usr/lib/xorg/modules/drivers//sil164.so


----------------------
------------------------------------------------------------------

And finally, here's output from code: less /var/log/Xorg.0.log|grep '(WW)':

x@xx:~$ sudo gedit less /var/log/Xorg.0.log | grep chipset
[sudo] password for x:
x@xx:~$ less /var/log/Xorg.0.log|grep '(WW)'
(WW) warning, (EE) error, (NI) not implemented, (??) unknown.
(WW) The directory "/usr/share/fonts/X11/cyrillic" does not exist.
(WW) intel(0): Bad V_BIOS checksum
(WW) intel(0): Register 0x61200 (PP_STATUS) changed from 0xc0000008 to 0xd0000009
(WW) intel(0): PP_STATUS before: on, ready, sequencing idle
(WW) intel(0): PP_STATUS after: on, ready, sequencing on
(WW) intel(0): xf86AllocateGARTMemory: allocation of 1536 pages failed
(WW) intel(0): Allocation error, framebuffer compression disabled
(WW) intel(0): xf86AllocateGARTMemory: allocation of 10 pages failed
(WW) intel(0): EXA greedy migration mode enabled.
(WW) AIGLX: 3D driver claims to not support visual 0x23
(WW) AIGLX: 3D driver claims to not support visual 0x24
(WW) AIGLX: 3D driver claims to not support visual 0x25
(WW) AIGLX: 3D driver claims to not support visual 0x26
(WW) AIGLX: 3D driver claims to not support visual 0x27
(WW) AIGLX: 3D driver claims to not support visual 0x28
(WW) AIGLX: 3D driver claims to not support visual 0x29
(WW) AIGLX: 3D driver claims to not support visual 0x2a
(WW) AIGLX: 3D driver claims to not support visual 0x2b
(WW) AIGLX: 3D driver claims to not support visual 0x2c
(WW) AIGLX: 3D driver claims to not support visual 0x2d
(WW) AIGLX: 3D driver claims to not support visual 0x2e
(WW) AIGLX: 3D driver claims to not support visual 0x2f
(WW) AIGLX: 3D driver claims to not support visual 0x30
(WW) AIGLX: 3D driver claims to not support visual 0x31
(WW) AIGLX: 3D driver claims to not support visual 0x32


If you think there's a need to upgrade my video driver, I would welcome that. It would be great to upgrade it if I need to. Let me know, and thanks for everything, jomen !!!!