pmb.qemu: make video resolution configurable + consistent (!1886)
For some reason, the SDL display backend changes the video resolution to 1024x768, while the GTK display keeps it at 640x480. This is annoying, because at the moment we can only set one display resolution for a device in postmarketOS (e.g. for the splash screen). At the moment, the resolution for the splash screen is set to 640x480, which therefore shows up too small with the default SDL display. It seems like the display resolution can be only changed in the guest directly. Linux has a video= kernel parameter that can be used to implement this. (See: https://www.kernel.org/doc/html/latest/fb/modedb.html) Let's set 1024x768 by default, but make it configurable through --video.
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@ -136,6 +136,9 @@ def arguments_qemu(subparser):
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ret.add_argument("--no-gl", dest="qemu_gl", default=True, action='store_false',
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help="Avoid using GL for accelerating graphics in QEMU "
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"(use software rasterizer, slow!)")
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ret.add_argument("--video", dest="qemu_video", default="1024x768@60",
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help="Video resolution for QEMU (WidthxHeight@RefreshRate). "
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"Default is 1024x768@60.")
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ret.add_argument("--audio", dest="qemu_audio", choices=["alsa", "pa", "sdl"],
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help="QEMU's audio backend (default: none)",
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@ -73,6 +73,10 @@ def command_qemu(args, arch, img_path):
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cmdline = args.deviceinfo["kernel_cmdline"]
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if args.cmdline:
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cmdline = args.cmdline
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if "video=" not in cmdline:
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cmdline += " video=" + args.qemu_video
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logging.debug("Kernel cmdline: " + cmdline)
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port_ssh = str(args.port)
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