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[Qemu-devel] [Bug 1530386] Re: command.com on win95 throws video mode ou
From: |
John Comeau |
Subject: |
[Qemu-devel] [Bug 1530386] Re: command.com on win95 throws video mode out |
Date: |
Fri, 01 Jan 2016 00:53:47 -0000 |
verified that the problem does not exist on bochs version 2.6-5 Debian
package. I first had to convert the image from qcow to raw: qemu-img
convert -O raw c.img c_raw.img
bxrc file:
megs: 32
vga: extension=vbe
romimage: file=$BXSHARE/BIOS-bochs-latest
vgaromimage: file=$BXSHARE/VGABIOS-lgpl-latest
cpu: count=1, ips=100000000, reset_on_triple_fault=1
boot: disk
ata0-master: type=disk, path="/tmp/c_raw.img"
#info: action=report
#debug: action=report
log: /tmp/bochs-win95.log
mouse: enabled=0
vga_update_interval: 150000
command line: bochs -q -f /tmp/bochs.bxrc
screenshot attached.
** Attachment added: "screenshot of same image running under bochs"
https://bugs.launchpad.net/qemu/+bug/1530386/+attachment/4542686/+files/screenshot.png
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https://bugs.launchpad.net/bugs/1530386
Title:
command.com on win95 throws video mode out
Status in QEMU:
New
Bug description:
on a presumed-good copy of Windows 95 obtained from http://forum.xda-
developers.com/showthread.php?t=1960870, the operating system boots
successfully and shows up fine, but as soon as I double-click the MS-
DOS icon, the window, while remaining the same size, goes to a
different resolution and only shows a small portion of what it did,
with strange colors and artifacts. tried first with the Debian 2.5
package, then with latest cvs sources, then with the 2.5.0 release,
all the same problem.
address@hidden:/usr/src/qemu-2.5.0/build$ cd /tmp/win95/SDL/
address@hidden:/tmp/win95/SDL$
/usr/src/qemu-2.5.0/build/i386-softmmu/qemu-system-i386 c.img
address@hidden:/tmp/win95/SDL$
/usr/src/qemu-2.5.0/build/i386-softmmu/qemu-system-i386 --version
QEMU emulator version 2.5.0, Copyright (c) 2003-2008 Fabrice Bellard
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