https://bugzilla.kernel.org/show_bug.cgi?id=93701
Bug ID: 93701 Summary: radeon: two "empty" pixel lines on left side of screen, rest of screen gets slightly squished Product: Drivers Version: 2.5 Kernel Version: 4.0-rc1 Hardware: All OS: Linux Tree: Mainline Status: NEW Severity: normal Priority: P1 Component: Video(DRI - non Intel) Assignee: drivers_video-dri@kernel-bugs.osdl.org Reporter: frederik.hofe@gmail.com Regression: No
This happens in the current 4.0-rc1. 3.19 does not show this.
Basicly it looks like my resolution of 1920x1080 gets blitted into 1918,1080 with linear filtering somewhere before it gets on my screen.
When I take a screenshot with gimp, I get a normal 1920x1080 image without the defect.
I use a Radeon 7870 (Pitcairn) -> HDMI -> Samsung S22A350H
Also I use the padoka PPA for bleeding edge mesa/llvm drivers.
glxinfo|grep OpenGL OpenGL vendor string: X.Org OpenGL renderer string: Gallium 0.4 on AMD PITCAIRN OpenGL core profile version string: 3.3 (Core Profile) Mesa 10.6.0-devel (padoka PPA) OpenGL core profile shading language version string: 3.30 OpenGL core profile context flags: (none) OpenGL core profile profile mask: core profile OpenGL core profile extensions: OpenGL version string: 3.0 Mesa 10.6.0-devel (padoka PPA) OpenGL shading language version string: 1.30 OpenGL context flags: (none) OpenGL extensions: OpenGL ES profile version string: OpenGL ES 3.0 Mesa 10.6.0-devel (padoka PPA) OpenGL ES profile shading language version string: OpenGL ES GLSL ES 3.00 OpenGL ES profile extensions: