Which ATI Mach 64 card? The motherboard doesn't support more than
366MHz. Latest BIOS is 2.02. If this is a new machine it is using an
obsolete motherboard.
Brian Macy
Sandy Harris wrote:
>
> Posted this a while ago. Problem still unsolved. Help.
>
> -------- Original Message --------
> Subject: Help: any known oddities Tyan dual + ATI?
> Date: Wed, 07 Jul 1999 23:26:48 +0000
> From: Sandy Harris <[EMAIL PROTECTED]>
> To: [EMAIL PROTECTED]
> References: <[EMAIL PROTECTED]>
>
> Brand new system:
>
> Tyan Thunder 2 ATX, model s1696dlua with SCSI & sound
> Dual Celeron 466, socket type on MSI (Microstar) adapter boards
> ATI 2 meg Mach 64 PCI video
> Dlink 10/100 PCI and SMC 10 ISA net cards.
> SCSI 50-pin bus has CD, Exabyte tape, 1.7 gig hard drive.
> IDE has 3.2 hard drive.
>
> It passes POST. BIOS reports correct RAM, two CPUs and all SCSI
> devices.
>
> Symptoms:
>
> Dealer assembled it, tried SUSE 6.1 install, & reports video
> misbehaviour from SUSE yast utility. Half of screen, randomly top
> or bottom, disappears in mid-flight. Changing to another PCI video
> card didn't help.
>
> Anyone recognise these symptoms?
>
> I've not tried it myself yet; SCSI disk (4 gig ultra) that I want to
> install on arrives tomorrow.
>
> BIOS has quite a few VGA-related options.
>
> I can switch distributions, try installing without yast, or use a mono
> hercules-type video card if necessary, but would rather not.
>
> Suggestions?
> -------------- end of original post ------------
>
> I've now tried SuSE 6.1, 6.2, & 5.x, Redhat 6.0 & 5.x. All give the
> same symptoms, with minor variations.
>
> I tried all suggestions received as responses to previous post, e.g.
> removing net card that might have IRQ conflict with video. Thanks.
>
> Several different PCI VGA cards, (ATI Mach 64s that work fine in other
> systems, including some tested in another Linux box). Also an ISA
> monchrome card, Hercules clone.
>
> Making my own boot disk, 2.0.38 kernel with MTRR patch, did not help.
>
> For all the above: Cursor jumps around randomly during kernel boot
> sequence, parts of screen (rectangles, often apparently chunks of
> lines, usually near cursor) go blank and/or change colour. Usually it
> hangs sometime during this process, most often just after the line about
> "checking POSIX compliance".
>
> If it makes it through boot without hanging, behaviour continues during either SuSE
>or RedHat
> install process.
>
> Reported bogomips are ludicruosly low. 3.8 or so. Linux reports CPU
> speed as 46614614 MHz or some such; 466 would be right.
>
> BIOS is latest downloadable, 1.18 version.
>
> Both the BIOS and Linux can see the SCSI hard drive and the IDE CDROM.
> I know the BIOS sees the Exabyte tape backup; I haven't noticed
> whether Linux does.
>
> BIOS reports various devices using IRQs, even after I've disabled
> them in BIOS setup screens: USB and PS/2 mouse. Reported IRQs
> indicate they might conflict with SCSI controller.
>
> Fiddling with various BIOS video-related setup items -- use IRQ for PCI
> video, pallette snooping, USWC on frame buffer, ... -- makes no
> difference. I haven't tried all combinations, but I have tried every
> option one-at-a-time in sequence.
>
> NT and FreeBSD install disks come up fine with no video problem.
> I haven't completed either install; don't want NT and don't have
> FreeBSD CDs.
>
> As I write, a test install of 98 is going well, though slowly. No
> video misbehaviour or crashes, but obviously /much/ slower than my
> K6-450 and IDE 98 box.
>
> I'll try Solaris x86 this weekend. If I can't get Linux up, that would be my next
>choice.
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