Bug#785448: xserver-xorg-video-ati: Screen is badly tinged with green when using the open source driver

[Owen Riddy]

I have not, but if I reboot the computer to an install of Jessie using
fglrx the tinge is not present; and it appeared shortly after updating to
Jessie + unstable. I'll try a few things with the cable & report back if
any of them have an impact, but the fglrx test suggests this problem is
100% fixable in software.

Owen Riddy
Email: owen.riddy at gmail.com
Mobile: 040 163 2663

--

On 18 May 2015 at 12:56, Michel Dänzer <michel at daenzer.net> wrote:

> On 16.05.2015 21:21, Owen Riddy wrote:
> > Package: xserver-xorg-video-ati
> > Version: 1:7.5.0-1+b1
> > Severity: important
> >
> > Dear Maintainer,
> >
> > I'm using the open source ati graphics with a 3-screen setup. After
> upgrading to unstable after the release of Jessie everything ran without
> issue.
> >
> > I booted into a seperate install of Jessie on the same computer that had
> flgrx installed, and after rebooting into unstable one of the screens
> (connected by a HDMI cable) has acquired a distinct green tinge that
> obscures whatever the screen is trying to show. It is a sort of neon green.
> >
> > This image is a graphical corruption bug - I took a screenshot using
> ksnapshot and on my other two screens the image dispaled withouth the green
> tinge.
> >
> > The tinge is not present:
> >   * In the BIOS
> >   * When GRUB is active
> >   * Early in the boot process when the kernel is still printing text
> >   * On a separate Debian install on the same hardware, using fglrx
> >
> > I tried changing the gamma settings of the screen and poking at the
> backlight settings but this did not help. Changing the gamma made a very
> slight difference but the tinge does nto seem to be caused by a rogue gamma
> setting.
> >
> > At some points during, eg, shutdown my screens go blank - usually this
> is black but at present the green tinged screen goes straight green.
>
> It sounds like there might be a problem with the physical display
> connection. Have you checked the connector seating at both ends, maybe
> unplugging and re-plugging them, or even using a different cable?
>
>
> --
> Earthling Michel Dänzer               |               http://www.amd.com
> Libre software enthusiast             |             Mesa and X developer
>
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