[ATI] extending makes right screen unusable

Bug #1068905 reported by Sebastian Stammler on 2012-10-19
6
This bug affects 1 person
Affects Status Importance Assigned to Milestone
disper
Undecided
Unassigned

Bug Description

I have a Radeon HD4650 and use the open source xf86-video-ati drivers, v. 6.14.6. I know, disper is primarily intended for use with nvidia cards, but I gave it a go anyway. I found the nice gnome 3 add-on "Disper Displays", which uses disper...
I can confirm that disper -s and -S work and that it correctly recognizes the display modi (resolutions and frequencies). However, issuing 'disper -e -t left' or '... -t right' makes the right (always the right screen, doesn't matter which is the primary and which is the secondary screen) screen unusable. If I move the mouse cursor on the right screen, it stays on the very left side of the screen and I can only move it up and downwards. Also the windows displayed are somewhat distorted...

disper --version: 0.3.0
running on Arch Linux
primary display is a 1920x1200 IPS and secondary is a 1920x1080 tv. (and primary is dvi-1, secondary dvi-0, weird...)

disper -e -t left -v:
Enabled plugins:
auto-detected displays: DVI-1, DVI-0
resolutions of DVI-1: 640x480, 848x480, 800x600, 1024x576, 1024x768, 1280x768, 1280x800, 1360x768, 1366x768, 1280x960, 1440x900, 1280x1024, 1600x900, 1400x1050, 1680x945, 1680x1050, 1600x1200, 1920x1080, 1920x1200
resolutions of DVI-0: 640x480, 720x480, 848x480, 720x576, 800x600, 1024x576, 1440x480, 1024x768, 1440x576, 1280x720, 1280x768, 1280x800, 1360x768, 1366x768, 1280x960, 1440x900, 1280x1024, 1600x900, 1400x1050, 1680x945, 1680x1050, 1920x1080
preferred resolutions for displays: DVI-1: 1920x1200, DVI-0: 1920x1080
DVI-1: selecting XRandR mode #0: 1920x1200 59Hz
DVI-0: available refresh rates for resolution 1920x1080: 24, 25, 25, 30, 30, 50, 60
DVI-0: selecting XRandR mode #1: 1920x1080 60Hz

Xorg.0.log is attached

Sebastian Stammler (stammler-s) wrote :
Sebastian Stammler (stammler-s) wrote :

Just took a screenshot and the virtual desktop size is apparently only that of the primary screen(19020x1200). It is attached, shot after 'disper -e -t left'. What one sees in the screenshot is actually what appears on the tv (second screen), not on the primary. I can attach a photograph of what is shown on the primary screen if someone is interested.

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