Re: Psychedelic GUI after stable update to buster
On Sat, 13 Jul 2019 04:14:52 -0400
hobie@rumormillnews.com wrote:
> > On 13.07.2019 12:44, hobie@rumormillnews.com wrote:
> >>> On Fri, 12 Jul 2019 20:22:55 -0400
> >>> hobie@rumormillnews.com wrote:
> >>>
> >>>>> On Fri, 12 Jul 2019 17:52:43 -0400
> >>>>> hobie@rumormillnews.com wrote:
> >>>>>
> >>>>>> Following recent 'buster' move to 'stable' I got wild
> >>>>>> psychedelic colors
> >>>>>> on my XFCE desktop, making it nearly impossible to read
> >>>>>> anything on-screen.
> >>>>>>
> >>>>>> Normally I'd have display set for 1024x768. I've found I can
> >>>>>> get normal
> >>>>>> color on the GUI if I switch to 1600x900. However, even then,
> >>>>>> if I switch
> >>>>>> to console (F1-F6) or if the screensaver comes on, on return
> >>>>>> the psychedelic colors are back. If I log out / log in to the
> >>>>>> desktop, normal
> >>>>>> colors return with the 1600x900 setting only.
> >>>>>>
> >>>>>> AMD A10-7860K Radeon R7. ASUSTEK A68HM-K motherboard.
> >>>>>> firmware-linux-free and firmware-linux-nonfree are installed.
> >>>>>>
> >>>>>> Is this a bug? Is there a fix? I'd like to get my normal
> >>>>>> colors and normal resolution back. Thanks in advance for any
> >>>>>> help.
> >>>>>
> >>>>> Try a different theme. The switch from GTK-2 to GTK-3 results
> >>>>> in a mess
> >>>>> if the wrong theme is used.
> >>>>>
> >>>> Thanks. :) Using GTK-ChTheme (which says it's for GTK+ 2, but I
> >>>> don't see
> >>>> a similar utility for GTK+ 3) I switched to Xfce 4.4 but got no
> >>>> improvement. Should I be approaching this theme change some
> >>>> other way?
> >>>>
> >>> You have the right idea, however, perhaps try adwaita, which is a
> >>> GTK-3 specific theme.
> >>>
> >> Whoa! I tried to take screenshots so folks could see what I've
> >> been trying to describe. Shot of normal screen turns out as
> >> expected. Shot of
> >> psychedelic screen turns out ... identical to shot of normal
> >> screen!!! In
> >> other words, what's present in graphic memory space is not the
> >> same as what's being transmitted to my display/monitor,
> >> sometimes. Where's Rod Serling when we need him...? :)
> >>
> >>
> > What display/monitor do you use? Do you connect it using HDMI cable?
> > I remember another list user was asking same question with identical
> > symptoms sometime ago.
> >
> > --
> > With kindest regards, Alexander.
> >
> Thanks -- the brand is AOC, connected via VGA cable, there's a DVI
> port on the card but no HDMI one. (If I plug an HDMI converter in
> via USB, would that work?)
>
It should, but the DVI from a computer ought to work into an HDMI
monitor, though of course it needs an adaptor plug. I've done that
before.
This sounds like a graphics driver problem, so the DVI may also be
affected, but maybe not. The colour encoding is very different from VGA.
--
Joe
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