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Andrew David Wong 2020-02-28 10:53:37 -06:00
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user/advanced-configuration/gui-configuration.md
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@ -1,14 +1,14 @@
---
layout: doc
title: GUI Configuration and Troubleshooting
permalink: /doc/gui-configuration/
permalink: /doc/gui-configuration-and-troubleshooting/
redirect_from:
- /doc/gui-configuration/
---
GUI Configuration and Troubleshooting
=====================================
# GUI Configuration and Troubleshooting
Video RAM adjustment for high-resolution displays
-------------------------------------------------
## Video RAM adjustment for high-resolution displays
**Problem:** You have a 4K external display, and when you connect it, you can't click on anything but a small area in the upper-right corner.
@ -50,3 +50,27 @@ Section "Device"
Option "TearFree" "true"
EndSection
```
## GUI Troubleshooting
If you can start your VM, but can't launch any applications, then you need to fix the issues from the `VM console`, accessible from xen through:
```sh
qvm-start <VMname> # Make sure the VM is started
sudo xl console <VMname>
```
### Tips
#### Disable audited messages
To disable audited messages, you need to edit your VM kernel parameters:
```sh
previous_kernel_parameters=$(qvm-prefs --get <VMname> kernelopts) # Get current kernel parameters
qvm-prefs --set <VMname> kernelopts "<previous_kernel_parameters> audit=0"
```
Then, restart your VM.
Once your troubleshooting is done, don't forget to remove this kernel parameters, it makes troubleshooting VMs not starting easier.