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Bug 979898 - [qemu-kvm]The win2k3-32 guest display is abnormal when using -vga cirrus
Summary: [qemu-kvm]The win2k3-32 guest display is abnormal when using -vga cirrus
Keywords:
Status: CLOSED CURRENTRELEASE
Alias: None
Product: Red Hat Enterprise Linux 7
Classification: Red Hat
Component: seabios
Version: 7.0
Hardware: Unspecified
OS: Unspecified
high
medium
Target Milestone: rc
: ---
Assignee: Yvugenfi@redhat.com
QA Contact: Virtualization Bugs
URL:
Whiteboard:
: 1018744 1044804 (view as bug list)
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2013-07-01 06:22 UTC by guo jiang
Modified: 2019-03-26 15:16 UTC (History)
14 users (show)

Fixed In Version: seabios-1.7.2.2-8.el7
Doc Type: Bug Fix
Doc Text:
Clone Of:
Environment:
Last Closed: 2014-06-13 09:30:06 UTC
Target Upstream Version:
Embargoed:


Attachments (Terms of Use)
screen-shot (33.38 KB, image/png)
2013-07-01 06:25 UTC, guo jiang
no flags Details

Description guo jiang 2013-07-01 06:22:50 UTC
Description of problem:
Boot win2k3 with -vga cirrus, the display is abnormal. 

Version-Release number of selected component (if applicable):
    * Red Hat Enterprise Linux Server release 7.0 Beta(Maipo)
    * kernel-3.10.0-0.rc7.64.el7.x86_64   
    * qemu-img-1.5.0-2.el7.x86_64
    * virtio-win-prewhql-0.1-65
    * spice-server-0.12.3-1.el7.x86_64
    * seabios-1.7.2-2.el7.x86_64
    * vgabios-0.6b-3.7.el6.noarch

How reproducible:
100%

Steps to Reproduce:
1.Boot guest with CLI
  /usr/libexec/qemu-kvm -drive file=win2k3-32.qcow2,if=none,cache=unsafe,media=disk,format=qcow2,id=drive-ide0-0-1 -device ide-drive,id=ide1,drive=drive-ide0-0-1,bus=ide.1 -device virtio-balloon-pci,id=balloon1 -monitor stdio -vnc :2 -vga cirrus -usb -device usb-tablet,id=tablet1 -boot menu=on -global kvm-pit.lost_tick_policy=discard -chardev file,path=/root/console.log,id=serial1 -device isa-serial,chardev=serial1,id=s1 -cpu SandyBridge -M pc -smp 4,cores=4 -m 2G -enable-kvm -netdev tap,id=hostnet0,script=/etc/qemu-ifup -device e1000,netdev=hostnet0,mac=00:51:3c:24:31:11,id=net0

2.
3.

Actual results:
display abnormal

Expected results:
display normal

Additional info:
If use -vga std guest display normal.

Comment 1 guo jiang 2013-07-01 06:25:08 UTC
Created attachment 767247 [details]
screen-shot

Comment 5 Miki Mishael 2014-01-07 14:39:55 UTC
The problem is in seabios/vgabios.
There was a bug fixed by commit in upstream:

commit b7b92935df0e309149c042d587e4764548f10608
Author: Kevin O'Connor <kevin>
Date:   Sat Mar 9 13:04:47 2013 -0500

    vgabios: Fix cirrus memory clear on mode switch.

    The cirrus_clear_vram() code wasn't actually doing anything because of
    a u8 overflow.  Fix that.

    Fill with 0xff when performing a legacy cirrus mode switch (WinXP has
    been observed to incorrectly render dialog boxes if the memory is
    filled to 0).  This was the behavior of the original LGPL vgabios
    code.  To support this, add mechanism (MF_LEGACY) to allow vga drivers
    to detect if the mode switch is from vesa or int10.

    Signed-off-by: Kevin O'Connor <kevin>

I'm sending a back-port to corresponding repository.

Comment 7 Miroslav Rezanina 2014-01-13 09:33:09 UTC
Fix included in seabios-1.7.2.2-8.el7

Comment 9 Xu Han 2014-01-17 02:46:22 UTC
*** Bug 1018744 has been marked as a duplicate of this bug. ***

Comment 10 Xu Han 2014-01-17 02:54:58 UTC
As the test result in bug 1018744 comment 9, this bug has been fixed.

Comment 12 Mike Cao 2014-01-22 09:44:56 UTC
*** Bug 1044804 has been marked as a duplicate of this bug. ***

Comment 13 Ludek Smid 2014-06-13 09:30:06 UTC
This request was resolved in Red Hat Enterprise Linux 7.0.

Contact your manager or support representative in case you have further questions about the request.


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