[Ubuntu13.04] Screen colorful after change vga's resolution rate
Bug #1166676 reported by
XiongZhang
This bug report is a duplicate of:
Bug #1157678: [ffe] unplugging an external monitor from laptop results in corrupted screen. Logging out fixes it..
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This bug affects 1 person
Affects | Status | Importance | Assigned to | Milestone | |
---|---|---|---|---|---|
xserver-xorg-video-intel (Ubuntu) |
New
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Undecided
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Unassigned |
Bug Description
SharkBay(Desktop):
BIOS:HSWLPTU1.
Kernel: 3.8.0-12-generic
OS: Ubuntu Raring Ringtail (development branch)
SharkBay(Mobile):
BIOS:HSWLPTU1.
Kernel: 3.8.0-12-generic
OS: Ubuntu Raring Ringtail (development branch)
xserver-
Details:
Connecting a vga screen, then changing screen's resolution rate from 1024 X 768 to 800 X 600 or vice versa, most of the time the screen will become garbage or colorful, but several times is OK.
1) only VGA has this issue, DP hasn't this issue.
2) only SNA acceleration method has this issue, UXA hasn't this issue
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It's a kernel bug, and UXA is more than susceptible to it as well.