https://bugs.freedesktop.org/show_bug.cgi?id=99181
Bug ID: 99181 Summary: RS780 blank screen on boot Product: DRI Version: XOrg git Hardware: Other OS: All Status: NEW Severity: normal Priority: medium Component: DRM/Radeon Assignee: dri-devel@lists.freedesktop.org Reporter: chithanh@gentoo.org
Hardware: BIOSTAR A780L
When booting with 3.15 or newer kernels, a monitor connected to the DVI port of the BIOSTAR A780L will stay blank. Kernel 3.14 and older work fine.
I tried forcing the output to on with video=HDMI-A-1:e but this made no difference.
https://bugs.freedesktop.org/show_bug.cgi?id=99181
--- Comment #1 from Chí-Thanh Christopher Nguyễn chithanh@gentoo.org --- Created attachment 128629 --> https://bugs.freedesktop.org/attachment.cgi?id=128629&action=edit dmesg from kernel 3.14 with drm.debug=15 (working)
https://bugs.freedesktop.org/show_bug.cgi?id=99181
--- Comment #2 from Chí-Thanh Christopher Nguyễn chithanh@gentoo.org --- Created attachment 128630 --> https://bugs.freedesktop.org/attachment.cgi?id=128630&action=edit dmesg from kernel 4.9 with drm.debug=15 (not working)
https://bugs.freedesktop.org/show_bug.cgi?id=99181
Chí-Thanh Christopher Nguyễn chithanh@gentoo.org changed:
What |Removed |Added ---------------------------------------------------------------------------- See Also| |https://bugzilla.kernel.org | |/show_bug.cgi?id=91861
--- Comment #3 from Chí-Thanh Christopher Nguyễn chithanh@gentoo.org --- https://bugzilla.kernel.org/show_bug.cgi?id=91861 seems to be related, however this issue still happens with kernel 4.9
https://bugs.freedesktop.org/show_bug.cgi?id=99181
Christopher M. Penalver christopher.m.penalver@gmail.com changed:
What |Removed |Added ---------------------------------------------------------------------------- URL| |https://bugs.launchpad.net/ | |ubuntu/+source/linux/+bug/1 | |651910 QA Contact| |christopher.m.penalver@gmai | |l.com CC| |christopher.m.penalver@gmai | |l.com Hardware|Other |x86-64 (AMD64) Status|NEW |NEEDINFO
--- Comment #4 from Christopher M. Penalver christopher.m.penalver@gmail.com --- Commit bisect requested in https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1651910/comments/25 .
https://bugs.freedesktop.org/show_bug.cgi?id=99181
Martin Peres martin.peres@free.fr changed:
What |Removed |Added ---------------------------------------------------------------------------- Resolution|--- |MOVED Status|NEEDINFO |RESOLVED
--- Comment #5 from Martin Peres martin.peres@free.fr --- -- GitLab Migration Automatic Message --
This bug has been migrated to freedesktop.org's GitLab instance and has been closed from further activity.
You can subscribe and participate further through the new bug through this link to our GitLab instance: https://gitlab.freedesktop.org/drm/amd/issues/766.
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