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

[Michel Dänzer]

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