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DescriptionMichal Domonkos
2014-04-15 13:34:54 UTC
Created attachment 886489[details]
journal log with plymouth debug active
Description of problem:
In a dual head setup (1920x1080 and 1280x1024) the splash graphics on both monitors shows up in the resolution of the smaller monitor (1280x1024), thus not covering the whole screen of the larger monitor.
Version-Release number of selected component (if applicable):
plymouth-0.8.9-0.2013.03.26.4.el7.x86_64
kernel-3.10.0-121.el7.x86_64
How reproducible:
always
Steps to Reproduce:
1. Connect two monitors to the card's DisplayPorts
2. Boot up
Comment 1Ray Strode [halfline]
2014-04-15 14:02:28 UTC
can you reproduce with drm.debug=15 on the kernel command line and reattach the log?
Comment 3Ray Strode [halfline]
2014-04-15 15:11:14 UTC
Looks like a driver issue of some sort unless i'm misappraising the situation. It looks from the log as if the returned connector count is set to 2. plymouth iterates over the first two connectors and sees they're disconnected, so falls back to using /dev/fb0. the log also shows there are two other connectors not accounted for in the connector count. those connectors are the connected ones. presumably if plymouth knew about them (because the connector count was 4 instead of 2) then things would have worked.
Just for the record, the last 2 of those 4 connectors don't work on this card for some reason; they don't even display anything during POST so it looks like a hardware issue.
(In reply to Michal Domonkos from comment #4)
> Just for the record, the last 2 of those 4 connectors don't work on this
> card for some reason; they don't even display anything during POST so it
> looks like a hardware issue.
This isn't a bug at all. The board is actually *two* GPUs glued together, so two of the display connectors belong to the non-primary device which isn't initialised at POST.
(In reply to Ray Strode [halfline] from comment #3)
> Looks like a driver issue of some sort unless i'm misappraising the
> situation. It looks from the log as if the returned connector count is set
> to 2. plymouth iterates over the first two connectors and sees they're
> disconnected, so falls back to using /dev/fb0. the log also shows there are
> two other connectors not accounted for in the connector count. those
> connectors are the connected ones. presumably if plymouth knew about them
> (because the connector count was 4 instead of 2) then things would have
> worked.
See the above comment. Does plymouth correctly deal with multiple-GPU setups like this, and select one with connected heads?
Comment 7Ray Strode [halfline]
2014-07-16 15:20:35 UTC
(In reply to Ben Skeggs from comment #6)
> See the above comment. Does plymouth correctly deal with multiple-GPU
> setups like this, and select one with connected heads?
Not plymouth-0.8.9-0.2013.03.26.4.el7.x86_64 but later versions do.
Michal, can you retest against GA?
Created attachment 886489 [details] journal log with plymouth debug active Description of problem: In a dual head setup (1920x1080 and 1280x1024) the splash graphics on both monitors shows up in the resolution of the smaller monitor (1280x1024), thus not covering the whole screen of the larger monitor. Version-Release number of selected component (if applicable): plymouth-0.8.9-0.2013.03.26.4.el7.x86_64 kernel-3.10.0-121.el7.x86_64 How reproducible: always Steps to Reproduce: 1. Connect two monitors to the card's DisplayPorts 2. Boot up