I was testing a Photon application that was producing a regular output to a
pterm so the text was scrolling up the screen. After a while the Matrix
screensaver kicked in and to my surprise an area on the screen corresponding
to the pterm was scrolling UP the screen.
On closer inspection it looks like the screensaver is a combination of
static and dynamic symbols and it is the areas of static symbols that are
being moved (blitted?) upwards.
Is this some kind of Photon/video driver bug or what…?
Jim
Jim Douglas wrote:
On closer inspection it looks like the screensaver is a combination of
static and dynamic symbols and it is the areas of static symbols that are
being moved (blitted?) upwards.
Is this some kind of Photon/video driver bug or what…?
I have seen this also, I am sure it is related to blitting. Since my
screen saver is the matrix, I simply write it off as a “disturbance in
the matrix” 
Jim Douglas <jim@dramatec.co.uk> wrote:
I was testing a Photon application that was producing a regular output to a
pterm so the text was scrolling up the screen. After a while the Matrix
screensaver kicked in and to my surprise an area on the screen corresponding
to the pterm was scrolling UP the screen.>
On closer inspection it looks like the screensaver is a combination of
static and dynamic symbols and it is the areas of static symbols that are
being moved (blitted?) upwards.
Is this some kind of Photon/video driver bug or what…?
It looks like the region being put up by phmatrix is not opaque to
blit events. This could be a bug in in either phmatrix or some part
of Photon. All I know for sure is it ain’t a graphics driver problem 
Dave
Yup, it’s not opaque to blit events. Bug in the screen saver.
David Donohoe <ddonohoe@qnx.com> wrote:
Jim Douglas <> jim@dramatec.co.uk> > wrote:
I was testing a Photon application that was producing a regular output to a
pterm so the text was scrolling up the screen. After a while the Matrix
screensaver kicked in and to my surprise an area on the screen corresponding
to the pterm was scrolling UP the screen.>
On closer inspection it looks like the screensaver is a combination of
static and dynamic symbols and it is the areas of static symbols that are
being moved (blitted?) upwards.
Is this some kind of Photon/video driver bug or what…?
It looks like the region being put up by phmatrix is not opaque to
blit events. This could be a bug in in either phmatrix or some part
of Photon. All I know for sure is it ain’t a graphics driver problem >
Dave