[Bug 90989] New: Can't set screen scaling modes for external monitors.

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=90989

            Bug ID: 90989
           Summary: Can't set screen scaling modes for external monitors.
           Product: DRI
           Version: DRI git
          Hardware: Other
                OS: All
            Status: NEW
          Severity: normal
          Priority: medium
         Component: DRM/Intel
          Assignee: intel-gfx-bugs at lists.freedesktop.org
          Reporter: madper.xie at canonical.com
        QA Contact: intel-gfx-bugs at lists.freedesktop.org
                CC: intel-gfx-bugs at lists.freedesktop.org

Currently, it is possible to set scaling mode for a monitor only if the monitor
is internal (LVDS, eDP). This is done through xrandr:

$ xrandr --prop
Screen 0: minimum 320 x 200, current 1680 x 1050, maximum 8192 x 8192
LVDS1 connected primary 1680x1050+0+0 (normal left inverted right x axis y
axis) 331mm x 207mm
<snip>
    scaling mode: Full aspect 
        supported: None, Full, Center, Full aspect
<snip>

$ xrandr --output LVDS1 --set "scaling mode" "Center"

However, it is not possible to do this for external panels (VGA, DVI, HDMI,
DP). The "scaling mode" property is not exported for these panels. There are
many use cases for it, mainly related to gaming. Also some medical software
like electrocardiogram monitor can't be stretched.

The function is implemented on radeon drivers already.
(I simply copied the above description from bug: 80868)

-- 
You are receiving this mail because:
You are the QA Contact for the bug.
You are on the CC list for the bug.
You are the assignee for the bug.
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.freedesktop.org/archives/intel-gfx-bugs/attachments/20150616/478e1316/attachment.html>