Hi Am 16.02.23 um 13:52 schrieb Ville Syrjälä:
On Thu, Feb 16, 2023 at 01:03:02PM +0100, Thomas Zimmermann wrote:Hi, thanks for taking a look at the patches. Am 16.02.23 um 12:33 schrieb Gerd Hoffmann:On Wed, Feb 15, 2023 at 05:15:17PM +0100, Thomas Zimmermann wrote:Set the VGA bit for unblanking with macro constants instead of magic values. No functional changes.blank/unblank should work simliar to bochs (see commit 250e743915d4), that is maybe a nice thing to add of you modernize the driver anyway.Yeah, it's the VGA PAS field. [1] But is it really called blanking? PAS controls palette access, but blanking is sounds more like DPMS.Why aren't people just using the normal way of flipping the screen off bit in sequencer register 01?
Setting the SD bit in SR01 isn't a bad idea. We can do this as part of enabling/disabling the plane.
But for PAS, we don't have a choice. It's one of the bazillion obscure VGA settings and (according to a comment in the source code) we need to update it for compatibility.
Best regards Thomas
The PAS setting is actually part of the primary plane, so it's current location in the CRTC code is misleading. I didn't want to change the driver logic too much, but I guess I'll fix that in the next iteration. Best regards Thomas [1] https://web.stanford.edu/class/cs140/projects/pintos/specs/freevga/vga/attrreg.htm#3C0take care, Gerd-- Thomas Zimmermann Graphics Driver Developer SUSE Software Solutions Germany GmbH Maxfeldstr. 5, 90409 Nürnberg, Germany (HRB 36809, AG Nürnberg) Geschäftsführer: Ivo Totev
-- Thomas Zimmermann Graphics Driver Developer SUSE Software Solutions Germany GmbH Maxfeldstr. 5, 90409 Nürnberg, Germany (HRB 36809, AG Nürnberg) Geschäftsführer: Ivo Totev
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