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54 lines
1.7 KiB
Markdown
54 lines
1.7 KiB
Markdown
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Tips for Linux in HVM domain
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============================
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How to fix bootup kernel error
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-------------------------------
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If the HVM pauses on boot and shows a series of warnings, visit [HVM Troubleshooting](https://www.qubes-os.org/doc/hvm-troubleshooting/#hvm-pauses-on-boot-followed-by-kernel-error) for a fix.
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Screen resolution
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-----------------
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Some kernel/Xorg combinations use only 640x480 in HVM, which is quite small.
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To enable maximum resolution, some changes in the Xorg configuration are needed:
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1. Force "vesa" video driver
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2. Provide wide horizontal synchronization range
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To achieve it (all commands to be run as root):
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1. Generate XOrg configuration (if you don't have it):
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~~~
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X -configure :1 && mv ~/xorg.conf.new /etc/X11/xorg.conf
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~~~
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1. Add HorizSync line to Monitor section, it should look something like:
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~~~
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Section "Monitor"
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Identifier "Monitor0"
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VendorName "Monitor Vendor"
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ModelName "Monitor Model"
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HorizSync 30.0 - 60.0
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EndSection
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~~~
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1. Change driver to "vesa" in Device section:
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~~~
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Section "Device"
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# (...)
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Identifier "Card0"
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Driver "vesa"
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VendorName "Technical Corp."
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BoardName "Unknown Board"
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BusID "PCI:0:2:0"
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EndSection
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~~~
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Now you should get resolution of at least 1280x1024 and should be able to choose other modes.
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Qubes agents
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------------
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Linux Qubes agents are written primarily for PV qubes, but it is possible to run them also in a HVM qube.
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However some work may be required to achieve this. Check [this thread](https://groups.google.com/group/qubes-devel/browse_thread/thread/081df4a43e49e7a5).
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