text characters scrambled with xrandr and qt-4

Behdad Esfahbod behdad at behdad.org
Fri Mar 6 11:18:13 PST 2009

Adam Goode wrote:
> Behdad Esfahbod wrote:
>> Sebastian Glita wrote:
>>> Hi,
>>> Maybe this is a qt-4 problem, but here it is:
>>> when:
>>> xrandr --output LVDS --rotate left
>>> and launch a QT (ver. >=4)  application text is scrambled: a multicoloured 20% first line each character.
>> Sounds like subpixel filtering using the wrong RGB order.  Which isn't
>> surprising given that you didn't change the RGB order to VRGB (or VBGR).  I'm
>> not sure how Qt picks that up other than fontconfig config files.  GNOME uses
>> XSETTINGS to propagate such things.
> I have also noticed this problem, and I did set to VRGB. I didn't
> realize it was related to xrandr. Time to file bugs somewhere?

Filed for GNOME:


> Adam

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