Emulate refreshOnTurn

[silver18]

Good evening to all!!
I'm trying to figure out a way to emulate the full page refresh option using shell commands.
I "need" this because the current option provided by Amazon doesn't affect WAFs (one more lack...) even if I set it using the refreshOnTurn property.
I tried

eips ''

but this doesn't remove the shadows left by previous pages.
Any clue?
Thanks!!!

[geekmaster]

Originally Posted by silver18

Good evening to all!!
I'm trying to figure out a way to emulate the full page refresh option using shell commands.
I "need" this because the current option provided by Amazon doesn't affect WAFs (one more lack...) even if I set it using the refreshOnTurn property.
I tried

eips ''

but this doesn't remove the shadows left by previous pages.
Any clue?
Thanks!!!

A quick hack would be to copy the framebuffer to a temp file with dd, then clear the screen (full flash) multiple times with delays between them (for maximum erasure), then copy the original framebuffer back and do the eips '' to refresh it. Guaranteed to work.

Or you could use fancier methods that take research and testing. A quick hack as suggested may suffice until you require a better method...

[silver18]

Originally Posted by geekmaster

A quick hack would be to copy the framebuffer to a temp file with dd, then clear the screen (full flash) multiple times with delays between them (for maximum erasure), then copy the original framebuffer back and do the eips '' to refresh it. Guaranteed to work.

Or you could use fancier methods that take research and testing. A quick hack as suggested may suffice until you require a better method...

This quick hack is interesting, but I need to test it as it should be a "fast enough" solution (it should be done every page turning)!
Thanks for the hint!!!

[geekmaster]

Originally Posted by silver18

This quick hack is interesting, but I need to test it as it should be a "fast enough" solution (it should be done every page turning)!
Thanks for the hint!!!

That hack would be fast, especially if only one screen clear before the redraw. You need a slight delay before the redraw to be sure the erase is (mostly) complete before the redraw.

Alternatively, there is probably something you can poke somewhere in /sys to change the screen refresh method.