2010/8/8 Marius Gröger marius.groeger@googlemail.com:
Am 04.08.2010 16:35, schrieb Alex Deucher:
2010/8/4 Marius Grögermarius.groeger@googlemail.com:
Am 04.08.2010 01:59, schrieb Alex Deucher:
This connector attribute allows you to enable or disable underscan on a digital output to compensate for panels that automatically overscan (e.g., many HDMI TVs). Valid values for the attribute are:
off - forces underscan off on - forces underscan on auto - enables underscan if an HDMI TV is connected, off otherwise
default value is auto.
Terrific! Two questions:
- inevitably, on my TV Set (SONY KDL 3000) this now doing too much
underscan. In pixels: without your patch, I used a custom modeline to map 1280x720p to 1220x680p, so I'm 40 pixels down in each dimension. How to fix that?
Adjust radeon_crtc->v_border and radeon_crtc->h_border in the patch to whatever size you want.
Thanks. It turns out that I need different values to fit the screen (probably due to native 1366/768 != 1280/720). This is of course at the cost of slightly changing the rendered ratio, but that's fine with me.
Any plans to make those values tunables?
Perhaps if there is enough demand.
Also, I kind of was hoping that once I could use 1280x720 for both the console and the X screen, it would would allow me to switch between the two transparently. Instead, the TV takes notice of the switch and needs some extra syncing time. Is this expected behaviour?
You mean switching underscan off and on or a VT switch? The hw has to reprogram the mode when it changes the underscan. As for a VT switch, it should just be changing the crtc base, but IIRC there was a bug where X and the console used slightly different modes in some cases.
Alex