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authorChristian Krinitsin <mail@krinitsin.com>2025-06-01 21:35:14 +0200
committerChristian Krinitsin <mail@krinitsin.com>2025-06-01 21:35:14 +0200
commit3e4c5a6261770bced301b5e74233e7866166ea5b (patch)
tree9379fddaba693ef8a045da06efee8529baa5f6f4 /gitlab/issues_text/target_missing/host_missing/accel_missing/1585
parente5634e2806195bee44407853c4bf8776f7abfa4f (diff)
downloadqemu-analysis-3e4c5a6261770bced301b5e74233e7866166ea5b.tar.gz
qemu-analysis-3e4c5a6261770bced301b5e74233e7866166ea5b.zip
clean up repository
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-Incorrect VGA text mode rendering
-Description of problem:
-All of my physical machines use black as `DarkGray` and have the text starting from `White+DarkGray` blink (watch the video below). The ISO I'm using is a minimal kernel I've written to check VGA text mode (provided by the BIOS at `0xb8000` with a 80x25 resolution) handling on multiple emulators and machines.
-Changing the emulated CPU and display driver doesn't change this behaviour.
-
-Hyper-V: color test shows correct colors, all text starting from `White+DarkGray` is blinking
-
-![Hyper-V](/uploads/0d6e9a2398d0f5aeca94e6fbbc31e055/image.png)
-
-AMD Athlon 64 X2 6000+ + NVIDIA Quadro 400 on actual hardware: same as Hyper-V
-I've tested this with multiple physical GPUs and they all have the same behaviour and color palette.
-
-![AMD Athlon 64 X2 6000+ + NVIDIA Quadro 400](/uploads/883484cea78f8d598634ebab3645341c/image.png)
-
-QEMU: dark gray is the wrong color and the text doesn't blink
-Changing the emulated device doesn't change this behaviour.
-
-![QEMU](/uploads/cf1e6a1e7e8bcfc48b60bd92d9024de5/image.png)
-
-I think QEMU should emulate the hardware as close as possible and therefore atleast have the blinking text.
-Consider this a low priority issue.
-Steps to reproduce:
-1. Download ISO from the link above
-2. Run the QEMU command above
-3. See the text not blink
-Additional information:
-![Demo of various machines](/uploads/9de70ecd2185bdb57b3ee324fe18dcd9/2023-04-08_04-56-05.mp4)