Hans Matros, to see if this is resolved upstream, could you use the
latest kernel 4.15.1 without the WORKAROUND?
If it has boot issues, please provide details via
https://wiki.ubuntu.com/DebuggingKernelBoot .
Also, when providing dmesg, please don't grep/cut/snip logs. Post them
in full.
--
** Description changed:
- Dear community!
+ Using Ubuntu 16.04 through 17.10, when I boot the screen is black, ping
+ and ssh to the host does not work, and the fan is running. Same problem
+ with kernel 4.14 and 4.15RC7.
- I have installed Ubuntu 17.10 (also tried 17.04 and 16.04), and the
-
Thanks for your support. I have created an upstream bug report:
https://bugs.freedesktop.org/show_bug.cgi?id=104738
** Bug watch added: freedesktop.org Bugzilla #104738
https://bugs.freedesktop.org/show_bug.cgi?id=104738
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Please file an upstream bug at https://bugs.freedesktop.org/
Product: DRI
Component: DRM/radeon
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https://bugs.launchpad.net/bugs/1743427
Title:
Black screen with iMac 2011 and ATI
Thanks this kernel version can boot the system, but the performance of
the UI have a problem. Everything lags and also with youtube video's
there are a lot of frame drops.
dmesg | grep -i radeon
[1.371941] [drm] radeon kernel modesetting enabled.
[1.514874] fb: switching to radeondrmfb
Can you test the mainline kernel?
http://kernel.ubuntu.com/~kernel-ppa/mainline/v4.15-rc8
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Title:
Black screen with iMac 2011 and ATI Radeon
Dear Kai-Heng Feng!
Thanks for your response. I have tried your kernel version, but it is
the same bug with the black screen.
Best regards,
Hans
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** Changed in: linux (Ubuntu)
Importance: Undecided => Medium
** Changed in: linux (Ubuntu)
Status: Confirmed => Incomplete
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Title:
Please try this kernel, http://people.canonical.com/~khfeng/lp1743427/
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Title:
Black screen with iMac 2011 and ATI Radeon 6970M
To manage
** Attachment removed: "JournalErrors.txt"
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1743427/+attachment/5037464/+files/JournalErrors.txt
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** Attachment removed: "WifiSyslog.txt"
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apport information
** Tags added: apport-collected artful
** Description changed:
Dear community!
I have installed Ubuntu 17.10 (also tried 17.04 and 16.04), and the
system gets a black screen on boot with all tested Ubuntu versions. Also
ping and ssh to the host does not work. The
** Project changed: launchpad => linux (Ubuntu)
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Title:
Black screen with iMac 2011 and ATI Radeon 6970M
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