image corruption when in multiseat mode and "vga!=normal" kernel parameter
mangoo at wpkg.org
Thu Dec 18 04:18:39 PST 2008
Tomasz Chmielewski schrieb:
> I have a multiseat system with one AGP card (nvidia GeForce FX 5200;
> "primary" card, BIOS displays here) and one PCI card (ATI), running Linux.
> If I start X in "multiseat mode" (X on both cards, two keyboards+mice),
> image is corrupted on nvidia AGP card:
> The corruption happens with nv, nouveau and binary nvidia driver and a
> vga= mode different than normal (i.e. vga=791).
> The corruption does _not_ happen when I don't use vga= parameter (or use
> The corruption does not happen if I start X only on one of the cards.
I replaced the nvidia AGP card for an ATI card and I can see the same
So it doesn't seem to be related to the graphics card or the driver, but
some strange issue between the X server and Linux framebuffer?
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