[Bug 63451] New: DP lost output after switching the terminal sometimes on Ivybridge plaform
bugzilla-daemon at freedesktop.org
bugzilla-daemon at freedesktop.org
Thu Apr 11 23:18:43 PDT 2013
https://bugs.freedesktop.org/show_bug.cgi?id=63451
Priority: medium
Bug ID: 63451
Assignee: intel-gfx-bugs at lists.freedesktop.org
Summary: DP lost output after switching the terminal sometimes
on Ivybridge plaform
QA Contact: intel-gfx-bugs at lists.freedesktop.org
Severity: normal
Classification: Unclassified
OS: Linux (All)
Reporter: xiong.y.zhang at intel.com
Hardware: x86-64 (AMD64)
Status: NEW
Version: XOrg CVS
Component: DRM/Intel
Product: DRI
Created attachment 77837
--> https://bugs.freedesktop.org/attachment.cgi?id=77837&action=edit
After the last mode setting,DP lost output
Bios Version: ACRVMBY1.86C.0080.B00
Kernel: 3.9.rc6
Label: MBY02SDP
Platform: MahoBay
Processor/Chipset: IvyBridge/PantherPoint
OS:SUSE Linux Enterprise Desktop 11 SP3 Beta4 (x86_64)
2D driver version: 2.21.4
Details:
Connected the VGA + DP and then switched the terminal, sometimes DP output
lost, VGA output normally. This issue doesn't find when connected the HDMI and
VGA.
Steps to Reproduce:
1.Connect DP + VGA .
2.Switch the terminal.
Further info:
If connecting one DP, terminal switch has no problem. But if connecting two
displays(DP + VGA), DP worked as 1920 X 1200, VGA worked as 1024 X 768,
sometimes DP will lost display no matter in text mode or graphic mode, the lost
rate is about 20 percent. When switch terminal to console, DP will work in 1920
X 1200 also. So maybe DP can't work perfectly in 1920 X 1200 on this platform.
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