| Summary: | XineramaQueryScreens broken with reverse PRIME | ||||||||||
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| Product: | xorg | Reporter: | Matthias Schiffer <mschiffer+misc> | ||||||||
| Component: | Server/Ext/Xinerama | Assignee: | Xorg Project Team <xorg-team> | ||||||||
| Status: | RESOLVED FIXED | QA Contact: | Xorg Project Team <xorg-team> | ||||||||
| Severity: | normal | ||||||||||
| Priority: | medium | CC: | airlied, jan.burgmeier, micksaunders+fdo | ||||||||
| Version: | git | ||||||||||
| Hardware: | x86-64 (AMD64) | ||||||||||
| OS: | Linux (All) | ||||||||||
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| i915 platform: | i915 features: | ||||||||||
| Bug Depends on: | |||||||||||
| Bug Blocks: | 92986 | ||||||||||
| Attachments: |
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I run into the same problem and bisected it, this is the bad commit: 5de13830709a7f2d4d112d71e062f710ef466ab6 is the first bad commit commit 5de13830709a7f2d4d112d71e062f710ef466ab6 Author: Keith Packard <keithp@keithp.com> Date: Tue Dec 16 09:56:50 2014 -0800 randr: Use Monitor list for Xinerama This replaces the CRTC-based Xinerama implementation with one which uses Monitors instead, allowing clients to manipulate the Xinerama configuration through the RandR Monitor list. Reviewed-by: Dave Airlie <airlied@redhat.com> Signed-off-by: Keith Packard <keithp@keithp.com> Created attachment 121454 [details] [review] Fix XineramaQueryScreens for reverse prime The problem seems to be, that in RRMonitorInitList the primary and slave crtcs are counted but in RRMonitorMakeList only the primary. I attached a pached which fixed the bug for me. But I'm not familiar with the code so this hopefully won't break anything else. Created attachment 121464 [details] [review] Fix primary output detection for xinerama and reverse prime I'am not sure if this patch is correct or not. The bug it tries to fix is, that RRMonitorCrtcPrimary uses rrScrPrivPtr->primaryOutput to detect if the current output is the primary one but if the current output is attached to screen slave rrScrPrivPtr->primaryOutput is not set. This patch sets the primaryOutput variable also on all slave screens in ProcRRSetOutputPrimary. Please send patches (preferably using git send-email, but definitely generated by git format-patch) to the xorg-devel@lists.x.org list for review. commit 26da92b284ba0aa2d51d41d926d1ffa8f5888f61 Author: Jan Burgmeier <jan.burgmeier@unicon-software.com> Date: Thu Feb 4 14:06:43 2016 +0100 Fix XineramaQueryScreens for reverse prime |
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Created attachment 118703 [details] Xorg.log When configuring a reverse PRIME output (intel+nouveau), XineramaScreenInfo reports its size as 0x0 pixels, confusing my window manager and other software. Used versions: * xserver 1.17.99.901-89-gf6ce23f * xf86-video-intel 2.99.917-476-g4e668dd * xf86-video-nouveau 1.0.11-31-g1ff13a9 This is a regression, xserver 1.17.2 is working fine. Steps to reproduce: % xrandr --setprovideroutputsource nouveau Intel % xrandr --output DP-1-3 --auto --primary --output LVDS2 --right-of DP-1-3 --preferred % xrandr Screen 0: minimum 8 x 8, current 4160 x 1440, maximum 32767 x 32767 LVDS2 connected 1600x900+2560+0 (normal left inverted right x axis y axis) 310mm x 174mm 1600x900 60.00*+ 1368x768 60.00 1280x720 60.00 1024x768 60.00 1024x576 60.00 960x540 60.00 800x600 60.32 56.25 864x486 60.00 800x450 60.00 640x480 59.94 720x405 60.00 640x360 60.00 VGA2 disconnected (normal left inverted right x axis y axis) VIRTUAL1 disconnected (normal left inverted right x axis y axis) LVDS-1-1 disconnected (normal left inverted right x axis y axis) VGA-1-1 disconnected (normal left inverted right x axis y axis) DP-1-1 disconnected (normal left inverted right x axis y axis) DP-1-2 disconnected (normal left inverted right x axis y axis) DP-1-3 connected primary 2560x1440+0+0 (normal left inverted right x axis y axis) 597mm x 336mm 2560x1440 59.95*+ 1920x1200 59.95 1920x1080 60.00 60.00 50.00 50.00 59.94 1920x1080i 60.00 50.00 59.94 1680x1050 59.95 1280x1024 75.02 60.02 1440x900 59.89 1152x864 75.00 1280x720 60.00 50.00 59.94 1024x768 75.08 60.00 800x600 75.00 60.32 720x576 50.00 720x480 60.00 59.94 640x480 75.00 60.00 59.94 720x400 70.08 1024x768 (0x7a) 65.000MHz h: width 1024 start 1048 end 1184 total 1344 skew 0 clock 48.36KHz v: height 768 start 771 end 777 total 806 clock 60.00Hz 800x600 (0x7c) 40.000MHz h: width 800 start 840 end 968 total 1056 skew 0 clock 37.88KHz v: height 600 start 601 end 605 total 628 clock 60.32Hz 640x480 (0x82) 25.175MHz h: width 640 start 656 end 752 total 800 skew 0 clock 31.47KHz v: height 480 start 490 end 492 total 525 clock 59.94Hz % ./Devel/test/XineramaScreenInfo 0: x=2560 y=0 w=1600 h=900 1: x=0 y=0 w=0 h=0