Messages in this thread | | | Date | Sun, 9 Mar 2003 22:29:03 +0100 | From | Petr Vandrovec <> | Subject | Re: [Linux-fbdev-devel] Re: FBdev updates. |
| |
Hi James, I tried to use fb_cursor and I have quite a lot problems with it: (1) it uses global variables for storing last cursor value - - but there is no global hardware, so after switching from one fbdev to another you can have cursor with wrong shape, wrong color and so on... (2) callback from timer for cursor blinking may set almost any FB_CUR_* bits. But in this case fb_cursor callback may be called from interrupt context, while accelerator is busy and so on... Did I miss some synchronization? Best for me would be disabling blinking code in fbcon completely: in VGA mode cursor blinks automatically, and in graphics mode more lightweight only 'flash' callback is more appropriate for me. But then there is problem with (3) cursor_undrawn... I have no idea how is this supposed to work if fbdev provides hardware cursor... And HZ/50 delay after putcs makes orientation on screen very complicated, as there is no cursor while new characters are appearing on screen.
Thanks, Petr Vandrovec vandrove@vc.cvut.cz - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
| |