How to change from 16 to 24-bit colour depth in Julia?

[daibak]

Installed LM10 from linuxmint-10-gnome-dvd-i386.iso since updated online and working great on this 2002 vintage HP Notebook but I believe installed colour depth is only 16-bit. WinXP HE SP3 pre-installed OEM used to allow me 32-bit. Please supply command line how to change to DefaultDepth 24 as can't locate any /etc/X11/xorg.conf file which seems to have disappeared in Ubuntu 10.10. Terminal inxi -F shows:

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System:    Host HPPAVxz148 Kernel 2.6.35-22-generic i686 (32 bit) Distro Linux Mint 10 Julia
CPU:       Single core Intel Pentium 4 Mobile (-UP-) cache 512 KB flags (sse sse2) bmips 3599.83 clocked at 1800.00 MHz 
Graphics:  Card S3 VT8375 [ProSavage8 KM266/KL266] tty res: 80x24 Gfx Data: N/A for root user
Audio:     Card VIA VT8233/A/8235/8237 AC97 Audio Controller driver VIA 82xx Audio at port e100 BusID: 00:11.5
           Sound: Advanced Linux Sound Architecture Version 1.0.23
Network:   Card-1 Broadcom BCM4306 802.11b/g Wireless LAN Controller driver b43-pci-bridge BusID: 02:00.0
           Card-2 Realtek RTL-8139/8139C/8139C+ driver 8139too v: 0.9.28 at port e300 BusID: 00:08.0
Disks:     HDD Total Size: 160.0GB (25.9% used) 1: /dev/sda SAMSUNG_HM160HC 160.0GB 60C 
Partition: ID:/ size: 12G used: 3.2G (28%) fs: ext4 ID:/home size: 133G used: 36G (29%) fs: ext4 
           ID:swap-1 size: 2.00GB used: 0.00GB (0%) fs: swap 
Sensors:   System Temperatures: cpu: 57.0C mobo: N/A 
           Fan Speeds (in rpm): cpu: N/A 
Info:      Processes 152 Uptime 8:56 Memory 411.2/970.1MB Runlevel 2 Client Shell inxi 1.4.12

TIA, daibak
============
HP Pavilion xz148 Notebook PC only running Linux Mint 10 Julia
Upgraded to 1MB RAM, 160GB Samsung 5400rpm, Belkin 54g Wi-Fi card

[discord]

Hi mate

Newer versions of X.org seem to be moving away from using an xorg.conf in favour of the HAL daemon. You can read more about it at http://www.gentoo.org/doc/en/xorg-config.xml

You can still use an xorg.conf if you like, though.... Generate one with

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sudo Xorg -configure

Then you can just edit it - easier than creating one from scratch.

You will probably have to do this from a tty (ctrl-alt-F1 will get you to tty1)
Remember to stop the display manager with

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sudo service gdm stop

and start it again when you've tested your xorg.conf with

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sudo service gdm start

or just reboot

[daibak]

Thanks, discord, for your guidance how to tweak colour depth.
I'm sure there are sound reasons why distros are moving in this direction so, as this HP Notebook is humming along beautifully with 16-bit colour bit under Linux Mint 10 Julia, I think I'll let things be.

Again, thanks all the same,
daibak