Venetian blind effect on monitor.

[Dave Plowman (News)]

I've developed a fault on an LCD monitor which looks like vertical venetian blinds. The number of 'slats' changes with the resolution. Monitor or graphics card? Analogue drive.

[Colin Wilson]

Probably the monitor - gfx cards fail, but far less frequently than the screens they're attached to.

I've had one gfx card fail* since 1993 (?) but i've had about 5 monitors.

• it had not been installed for about 4 years, but didn't work when I went to use it as a backup in another machine, so might have been damaged in the "bits crate" it was lashed in.

[rrh]

Funny, my experience has been the other way round: no monitor failures (not in this way anyway) but several cards giving this symptom!

I suppose there is no access to another monitor or card to check?

[Grunff]

Have you changed your display settings lately? This exact same effect can be achieved by setting your display resolution to something other than the LCD's native resolution.

[TMC]

[Dave Plowman (News)]

Ah - coming clean, I'm experimenting with an RGB to VGA convertor. And its outputs are all at 60 Hz. Tried it on another monitor and it's fine.