6. Known problems in current driver

• Displays with depth 15 ("-bpp 15" or "-bpp 16 -weight 555") are NOT supported on V2x00 cards. This is a hardware-"limitation" and has been confirmed by Rendition. The driver lets you display the mode but you will get a reddish display as the card is actualy in 565-weight while X thinks it should display weight 555.
• Switching from display to VC and back to display can lock up V2x00 cards.
• When scrolling the virtual display on a V1000 card parts of the screen will become distorted. Problem dissapears when you continue moving around. V2x00 does not exhibit this problem. Probably a bug in the driver rather than a limitation of the chip.
• Option "chipset" is honored. Unfortunatly the driver still has problems and will only work if the rendition card is the primary display card in the system.
• Switching to VC does not restore correct textmode. Instead it defaults to 80x25.
• A horizontal distortion around the hardware cursor can be seen on certain modes. It can be fixed by turning off hardware cursor or by lowering the required bandwith of the mode.