Created attachment 53312 [details] dmesg.txt is the bug's dmesg information System Environment: ------------------- Platform: IvyBridge (Chief River) The Linux Kernel, the operating system core itself Kernel: (master)c3b92c8787367a8bb53d57d9789b558f1295cc96 Some additional commit info: Author: Linus Torvalds <torvalds@linux-foundation.org> Date: Mon Oct 24 09:10:05 2011 +0200 Bug Description: -------------------- While we unable the LVDS and boot with monitor connnect to DP,then we plugin VGA port,the two screen can display normally,but if we unplug the VGA monitor, the DP monitor turns to be black. And two errors "[drm:pch_irq_handler] *ERROR* PCH poison interrupt" and "[drm:intel_disable_transcoder] *ERROR* failed to disable transcoder" always appears in the terminal . BTW,if we boot with VGA monitor and plugin and out DP port servel times,the VGA monitor always can display normally.
Could any developer reproduce this?
I have try with kernel 3.2 rc6,the issue still occurs.
Does this happen with drm-intel-next or ivb-3-pipe?
(In reply to comment #3) > Does this happen with drm-intel-next or ivb-3-pipe? It still happens with the latest drm-intel-next.
Created attachment 56175 [details] [review] fixup dp bpc calculations Can you please try this patch?
(In reply to comment #5) > Created attachment 56175 [details] [review] [review] > fixup dp bpc calculations > Can you please try this patch? I have try this patch with testing branch,the issue don't exists.
Closing as fixed. Please verify or reopen, thanks.
Closing old verified.
Use of freedesktop.org services, including Bugzilla, is subject to our Code of Conduct. How we collect and use information is described in our Privacy Policy.