That's what would happen if your xorg.conf hasn't got the DisableTwinView line; it's a bug in the nvidia driver (or is it? nvisia blames Gnome). Once it was inserted, I could choose from the full set of ranges again.

I don't know, I've never had to deal with anything like that. I don't think a screen would make any sound, it's more likely the GPU or CPU that is getting stressed under certain conditions.

You can copy all ot them. Just make sure that you have a back-up and that you they are copied properly.

Okay I have tried what you suggested, I now find myself with the following xorg.conf

When I access System - Preferences - Screen Resolution, the refresh rate is now stuck on 60Hz...there are no options to change to. Despite me resetting the VertRefresh to a range?

Interestingly enough the refreshing is slightly better, still not perfect though.

Any other suggestions?

Thanks for all your help so far btw.

Are there any warnings in Xorg.0.log?

cat /var/log/Xorg.0.log | grep WW

As for the refresh rates, have your been able to verify that those are the exact rates supported by your monitor? I find it weird that your vertical rates are somewhat higher than the horizontal ones. This is unusual considering that
- horizontal rates of LCDs as a rule are higher than their vertical rates
- vertical rates of CRTs as a rule are MUCH higher than their horizontal rates

Note that too modest rates will result in lower overall refresh rates. Note also that setting them higher than what is supported will result in a blank screen! Always try to find documentation first.

Try if it helps if you add
to the device section.

Output from the log file does point to something interesting...

(WW) NVIDIA: No matching Device section for instance (BusID PCI:0:10:3) found
(WW) NVIDIA(0): No valid modes for "1152x864"; removing.
(WW) <default pointer>: No Device specified, looking for one...

I can't find out what screen I have...its a laptop so im presuming its LCD. I really know very little about screens. I just can't find any real techincal details for the laptop -- its an HP Pavillion dv6000.

I hope the warning messages above provide some sort of clue.

Cheers

How did you install that driver? Did you use one from the nvidia site or did you use the oen from livna?

It was a while ago but from what I can remember I installed kmod-nvidia via Yum.

What is the output of lspci? Just trying to verify whether the car is really on 0:10:3.

The lspci output is:

00:00.0 RAM memory: nVidia Corporation C51 Host Bridge (rev a2)
00:00.1 RAM memory: nVidia Corporation C51 Memory Controller 0 (rev a2)
00:00.2 RAM memory: nVidia Corporation C51 Memory Controller 1 (rev a2)
00:00.3 RAM memory: nVidia Corporation C51 Memory Controller 5 (rev a2)
00:00.4 RAM memory: nVidia Corporation C51 Memory Controller 4 (rev a2)
00:00.5 RAM memory: nVidia Corporation C51 Host Bridge (rev a2)
00:00.6 RAM memory: nVidia Corporation C51 Memory Controller 3 (rev a2)
00:00.7 RAM memory: nVidia Corporation C51 Memory Controller 2 (rev a2)
00:02.0 PCI bridge: nVidia Corporation C51 PCI Express Bridge (rev a1)
00:03.0 PCI bridge: nVidia Corporation C51 PCI Express Bridge (rev a1)
00:04.0 PCI bridge: nVidia Corporation C51 PCI Express Bridge (rev a1)
00:09.0 RAM memory: nVidia Corporation MCP51 Host Bridge (rev a2)
00:0a.0 ISA bridge: nVidia Corporation MCP51 LPC Bridge (rev a3)
00:0a.1 SMBus: nVidia Corporation MCP51 SMBus (rev a3)
00:0a.3 Co-processor: nVidia Corporation MCP51 PMU (rev a3)
00:0b.0 USB Controller: nVidia Corporation MCP51 USB Controller (rev a3)
00:0b.1 USB Controller: nVidia Corporation MCP51 USB Controller (rev a3)
00:0d.0 IDE interface: nVidia Corporation MCP51 IDE (rev f1)
00:0e.0 IDE interface: nVidia Corporation MCP51 Serial ATA Controller (rev f1)
00:10.0 PCI bridge: nVidia Corporation MCP51 PCI Bridge (rev a2)
00:10.1 Audio device: nVidia Corporation MCP51 High Definition Audio (rev a2)
00:14.0 Bridge: nVidia Corporation MCP51 Ethernet Controller (rev a3)
00:18.0 Host bridge: Advanced Micro Devices [AMD] K8 [Athlon64/Opteron] HyperTransport Technology Configuration
00:18.1 Host bridge: Advanced Micro Devices [AMD] K8 [Athlon64/Opteron] Address
Map
00:18.2 Host bridge: Advanced Micro Devices [AMD] K8 [Athlon64/Opteron] DRAM Con
troller
00:18.3 Host bridge: Advanced Micro Devices [AMD] K8 [Athlon64/Opteron] Miscella
neous Control
03:00.0 Network controller: Broadcom Corporation BCM4310 UART (rev 01)
05:00.0 VGA compatible controller: nVidia Corporation GeForce Go 7200 (rev a1)
07:05.0 FireWire (IEEE 1394): Ricoh Co Ltd Unknown device 0832
07:05.1 Class 0805: Ricoh Co Ltd R5C822 SD/SDIO/MMC/MS/MSPro Host Adapter (rev 1
9)
07:05.2 System peripheral: Ricoh Co Ltd Unknown device 0843 (rev 01)
07:05.3 System peripheral: Ricoh Co Ltd R5C592 Memory Stick Bus Host Adapter (re
v 0a)
07:05.4 System peripheral: Ricoh Co Ltd xD-Picture Card Controller (rev 05)


If my eyes aren't deceiving me there doesn't appear to be any instance of 00:10:3?

Exactly. Try using 0:10:0 instead - or simply put a hash in front of that line so that it gets skipped (the system will figure out where the card is; and also, not defining any BusID is always better than defining it incorrectly).

Yeah I see what your saying but I have never defined a BusID anywhere in my xorg.conf.

I don't see why it is coming up with that message. I know you can have BusID in the Device section but I don't have one in mine and I never have!?

Right, I have improved the refreshing business somewhat by inserting a modeline:

So in the Screen section I have:
Where "1280x800_60" is the following Modeline in my Modes section:
As I said, the refreshing seems a bit better -- I am getting less horizontally distorted lines. Furthermore, one of the warnings I got from my Xorg.log has gone...the one that said a certain resolution wasn't available. That resolution is now available when I go to System -- Preferences -- Screen Resolution.

However, I still can't choose from a list of refresh rates

Oh and those stupid comments have stopped being automatically generated !

That's great. As for the fixed rate, I still suspect this is related to the horizontal and vertical refresh rates. It happens to me as well when I set either (or both) incorrectly. Unfortunately, it seems impossible to find more details for your screen. You can start by gradually lowering the vertical rates since that is the least risky experiment. Raising the horizontal ones may work but it may just as well produce a blank screen. Make sure to have a back-up.