VIA PT880 Screen corruption in Vista

[project6]

This might help to troubleshoot the issue.

I have in Device Manager a yellow exclamation mark, over "other devices/unknown device"

If I click up properties about it, I get "VIA Standard PCI to ISA Bridge".

It says the drivers are not installed. Could this have anything to do with the issue? How do I resolve it?

[boyblue]

I'm not sure but Vista installed those drivers on my machine by default, remember I never installed the VIA Hyperion Pro Driver Package 5.11A.

What happens if you use update the driver in the device manager and point to where you have VIA Hyperion Pro Driver Package is (un-zipped), does it not load or install the driver.

[heder]

This exclamation mark is not present on my system, for what it's worth...

I checked around a bit on the web, and there seems to be people having similar problems with some other non-intel platforms, and the general way of dealing with the problems are by tweaking AGP Drive Strength in the BIOS. (This is obviously a way to fine tune how the AGP port electrically communicates with the card. Non-intel manufacturers have dealt with this quite some time since everyone tunes their hardware for Intel chipsets, and everyone else needs a way to fine-tune their chipset...)
It should be mentioned though, that most problems regarding this had with 3D graphics to do, and not in "non-accelerated mode" which seems to be the issue here.

Anyway - I fiddled around with my AGP settings a bit in BIOS, without any luck. There is no "AGP Drive Strength" in the 4CoreDual's BIOS. There is an AGP 3.0 Calibration though, which didn't give me any luck either...

[project6]

If I point to the VIA Hyperion Pro Driver Package when updating its drivers, nothing happens. I get a message saying that drivers could not be found.

[boyblue]

Does this work click update driver VIA Standard PCI to ISA Bridge, Browse my computer for driver software, let me pick from the list of device drivers on my computer and you should have these two drivers show up

If they do click on the VIA one and click next so it gets installed.

[project6]

Hmm I just found VIA Standard PCI to ISA bridge under another node in the devicemanager, so apparently it is installed.

I have no clue what the exclamation mark is about then, to be honest, I'm gonna try removing it and reboot.

Guess it has nothing to do with this specific issue then. [img]i/expressions/face-icon-small-sad.gif[/img]

Edit: It was the onboard midi device, I disabled it in BIOS. This is a bit off-topic, but I must ask... Is it normal to have 5xVIA CPU to PCI bridge in devicemanager? (under Systemdevices)

[fca51]

same issue here as mentioned on the nvidia forums, latest drivers don't solve it so i'm using ancient drivers on vista.

http://forums.nvidia.com/index...0678&st=20#entry193957

[boyblue]

If everyone keeps e-mailing nvidia about this then maybe they will fix the issue.

[Nomgle]

Same issue here.

Core 2 Duo, ASRock 4CoreDualVSTA (BIOS v2.0), GeForce 6600 AGP Graphics (Driver 163.44), Vista 64-bit.

[Skullet]

I've been trying to fix this issue for months, I'm using an Asrock 775Dual-VSTA with an E6600 and a Gainward Bliss 7800GS AGP. I think we need to accept the fact that not only will this issue not be fixed, but the companies responsible simply don't care. The way I see it you need to decide for yourself who you feel is responsible here, personally I lay the blame squarely with Asrock and VIA both have a long history of producing junk, I could blame Nvidia but my card works flawlessly with Vista if used in a non Asrock or VIA motherboard. As a result I will not be buying either Asrock or VIA products again in future, I suggest all those affected do the same to avoid further issues, hopefully as a result both companies suffer financially as they have basically ripped us off and washed there hands of the problem.