https://bugzilla.kernel.org/show_bug.cgi?id=99651
Bug ID: 99651 Summary: third monitor connected via dvi does not work on radeonhd 7770 Product: Drivers Version: 2.5 Kernel Version: 4.0.5 and higher (tested on 4.1-rc7 also) Hardware: All OS: Linux Tree: Mainline Status: NEW Severity: high Priority: P1 Component: Video(DRI - non Intel) Assignee: drivers_video-dri@kernel-bugs.osdl.org Reporter: sss123next@list.ru Regression: No
Created attachment 179171 --> https://bugzilla.kernel.org/attachment.cgi?id=179171&action=edit dmesg with some drm errors
after kernel update to 4.0.5 my third monitor stopped working (black screen with blinking standby indicator), but console resolution is adjusted to lowest monitor resolution, the one which is not working, so i guess driver see it and trying to use, look in dmesg in attachment
https://bugzilla.kernel.org/show_bug.cgi?id=99651
Gluzskiy Alexandr sss123next@list.ru changed:
What |Removed |Added ---------------------------------------------------------------------------- Regression|No |Yes
https://bugzilla.kernel.org/show_bug.cgi?id=99651
Alex Deucher alexdeucher@gmail.com changed:
What |Removed |Added ---------------------------------------------------------------------------- CC| |alexdeucher@gmail.com
--- Comment #1 from Alex Deucher alexdeucher@gmail.com --- what type of monitors/adapters are you using? I suspect the following commits may be at fault: http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=a1... http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=7f... Please attach your xorg log and xrandr --verbose output.
https://bugzilla.kernel.org/show_bug.cgi?id=99651
--- Comment #2 from Gluzskiy Alexandr sss123next@list.ru --- Created attachment 179381 --> https://bugzilla.kernel.org/attachment.cgi?id=179381&action=edit xrandr --verbose on 4.0.4
all working fine here, just for monitor info
https://bugzilla.kernel.org/show_bug.cgi?id=99651
--- Comment #3 from Gluzskiy Alexandr sss123next@list.ru --- Created attachment 179391 --> https://bugzilla.kernel.org/attachment.cgi?id=179391&action=edit xorg log on 4.0.4
xorg log on working system, just to get config info
https://bugzilla.kernel.org/show_bug.cgi?id=99651
--- Comment #4 from Gluzskiy Alexandr sss123next@list.ru --- Created attachment 179401 --> https://bugzilla.kernel.org/attachment.cgi?id=179401&action=edit xrandr --verbose on 4.0.5
on broken system, third monitor does not work, the one with 1280x1024 resolution
https://bugzilla.kernel.org/show_bug.cgi?id=99651
--- Comment #5 from Gluzskiy Alexandr sss123next@list.ru --- Created attachment 179411 --> https://bugzilla.kernel.org/attachment.cgi?id=179411&action=edit xorg log on 4.0.5
on broken system, third monitor does not work, the one with 1280x1024 resolution
https://bugzilla.kernel.org/show_bug.cgi?id=99651
--- Comment #6 from Gluzskiy Alexandr sss123next@list.ru --- i have reverted both commits and it's fixes a problem
dri-devel@lists.freedesktop.org
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