Classic Mac Hardware (Troubleshooting, Upgrading, & Modifying) > Video Cards, Monitors, & Displays

Quicksilver Video Problem

(1/1)

Tugboat:
I have a curious problem with my Quicksilver, which is powered by a dual 800 Mhz card (thank you again Fury).  The video card is an ATI Radeon 9000 Pro.  I run MacOS 9.2.2 on one partition and Mac OS X 10.5.8 on the other.  Until tonight I used a cheap Vizio LCD (model: um-d24hnd1) and was able to boot back and forth between both systems without any problem.  Tonight I hooked up an LG HDR 4k (LG27UK-850W) and, while I was able to boot into Mac OS X just fine, but every time I tried to boot into MacOS 9 I ended up with a gray screen.  I zapped the PRAM, tried to change the resolutions, ran disk utility diagnostics, etc. but to no avail.  I still can not get MacOS 9 to show on this LCD.  Any suggestions?  Thank you very much.

FBz:
Hey Tugboat!

IF you’ve tried all of the listed settings (image from Radeon Pro User manual) to no avail. Then you might try the CD-ROM download …OR the ATI OS9 Mac Software updater from the 2nd link below.
Perhaps a driver update is warranted?



ATI RADEON 9000 Pro CD-ROM Mac Edition Release 200
https://www.macintoshrepository.org/15446-ati-radeon-9000-pro-cd-rom-mac-edition-release-200

January 2005 updater: https://gona.mactar.hu/ATI_Mac/#CS
This also states that the 9200 might also require the “latest ATI ROM Xtender” (not available within the 2005 Updater).
Good to read all of the info there.

*But there are others... better qualified & “video specialists” (darthnVader) here that may provide you with much better info and possibly save you time and effort.
I’m just shootin' from the hip here. ;)

darthnVader:

--- Quote from: Tugboat on November 12, 2021, 06:59:42 PM ---I have a curious problem with my Quicksilver, which is powered by a dual 800 Mhz card (thank you again Fury).  The video card is an ATI Radeon 9000 Pro.  I run MacOS 9.2.2 on one partition and Mac OS X 10.5.8 on the other.  Until tonight I used a cheap Vizio LCD (model: um-d24hnd1) and was able to boot back and forth between both systems without any problem.  Tonight I hooked up an LG HDR 4k (LG27UK-850W) and, while I was able to boot into Mac OS X just fine, but every time I tried to boot into MacOS 9 I ended up with a gray screen.  I zapped the PRAM, tried to change the resolutions, ran disk utility diagnostics, etc. but to no avail.  I still can not get MacOS 9 to show on this LCD.  Any suggestions?  Thank you very much.

--- End quote ---

Likely you are running up against the 165mhz limit of the R9000 TMDS or some weird issue related to the OS 9 'NDRV'. Make sure you have the latest drivers from ATI.

https://gona.mactar.hu/ATI_Mac/ATI_Radeon_Retail_Installer/ati-retail-9-2-2-jan2005.hqx

If you still have issues with those drivers try trashing the OS 9 monitor preference file from within OS X and rebooting OS 9 in safe mode, ie shift key at boot.

We had this issue with the Mini G4 and the 'NDRV' from Mac OS X 10.3.9 and later and we had to settle with the NDRV from 10.3.7.

If none of that works I can try and make you a custom 'NDRV' for OS 9 from the OS X drivers.

The 'NDRV', DDC, and EDID are related, this monitor is just so much newer than OS 9 that something is just getting crossed up when OS 9 is trying to find a proper screen resolution for a 4k display.

ovalking:
I have occasionally experienced some monitors preventing boot-up, albeit with completely different hardware to this particular case.
One workaround I found is to boot up with the working monitor, then switch the connection to the desired monitor. Sometimes it works fine!

Tugboat:
Re-installation of the ATI drivers did the trick.  Thank you ovalking, darthnVader and FBz!

Navigation

[0] Message Index

Go to full version