Hardcoded "VideoRam 65536" in xorg-qubes.conf.template is too low for multiple 4k displays

[tonsilware]

Qubes OS version:

R3.2

---

General notes:

Yesterday I upgraded two of my displays to 4K (the third is 2560x1400). This resulted in major QubesOS AppVM issues - like AppVMs not registering clicks beyond a certain X/Y co-ordinate and "Run command in VM" frequently just not working at all.

I thought I'd try investigate: It seems that on each AppVM "qubes-set-monitor-layout" calls "xrandr". I discovered that xrandr was throwing an error when the requested resolution was above a certain level. So I increased the VideoRAM in /etc/X11/xorg-qubes.conf.template on all my templates and that seems to have solved the problem.

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Expected behavior:

Perhaps, if possible, rather than having the VideoRAM hardcoded at "65536" it should be dynamically calculated and populated (like the other values in the template) to ensure that there is sufficient VideoRAM for the AppVM when it starts (based upon the resolution at the time of the AppVM starting). e.g. something like:

minVideoRAM = (total resolution width) * (total resolution height) * (bytes per pixel) + (some additional head room?)
VideoRAM = max(minVideoRAM, 65536)

[marmarek]

Created pull request for this (QubesOS/qubes-gui-agent-linux#36). Can you verify if that solve the problem?

cc @TheBubblePopped

[marmarek]

Created pull request for this (QubesOS/qubes-gui-agent-linux#36). Can you verify if that solve the problem?

cc @TheBubblePopped

[tonsilware]

Thanks, I've tested the changes and that solves the problem on my system (4 monitors in total: 2x4k, 1x(2560x1440) and 1xFHD).

[tonsilware]

Thanks, I've tested the changes and that solves the problem on my system (4 monitors in total: 2x4k, 1x(2560x1440) and 1xFHD).

[qubesos-bot]

Automated announcement from builder-github

The package gui-agent-linux has been pushed to the r4.0 testing repository for the CentOS centos7 template.
To test this update, please install it with the following command:

sudo yum update --enablerepo=qubes-vm-r4.0-current-testing

Changes included in this update

[qubesos-bot]

Automated announcement from builder-github

The package gui-agent-linux has been pushed to the r4.0 testing repository for the CentOS centos7 template.
To test this update, please install it with the following command:

sudo yum update --enablerepo=qubes-vm-r4.0-current-testing

Changes included in this update

[qubesos-bot]

Automated announcement from builder-github

The component gui-agent-linux (including package pulseaudio-qubes-4.0.10-1.fc26) has been pushed to the r4.0 testing repository for the Fedora template.
To test this update, please install it with the following command:

sudo yum update --enablerepo=qubes-vm-r4.0-current-testing

Changes included in this update

[qubesos-bot]

Automated announcement from builder-github

The component gui-agent-linux (including package pulseaudio-qubes-4.0.10-1.fc26) has been pushed to the r4.0 testing repository for the Fedora template.
To test this update, please install it with the following command:

sudo yum update --enablerepo=qubes-vm-r4.0-current-testing

Changes included in this update

[qubesos-bot]

Automated announcement from builder-github

The package qubes-gui-agent_4.0.10-1+deb9u1 has been pushed to the r4.0 testing repository for the Debian template.
To test this update, first enable the testing repository in /etc/apt/sources.list.d/qubes-*.list by uncommenting the line containing stretch-testing (or appropriate equivalent for your template version), then use the standard update command:

sudo apt-get update && sudo apt-get dist-upgrade

Changes included in this update

[qubesos-bot]

Automated announcement from builder-github

The package qubes-gui-agent_4.0.10-1+deb9u1 has been pushed to the r4.0 testing repository for the Debian template.
To test this update, first enable the testing repository in /etc/apt/sources.list.d/qubes-*.list by uncommenting the line containing stretch-testing (or appropriate equivalent for your template version), then use the standard update command:

sudo apt-get update && sudo apt-get dist-upgrade

Changes included in this update

[qubesos-bot]

Automated announcement from builder-github

The package gui-agent-linux has been pushed to the r4.0 stable repository for the Fedora centos7 template.
To install this update, please use the standard update command:

sudo yum update

Changes included in this update

[qubesos-bot]

Automated announcement from builder-github

The package gui-agent-linux has been pushed to the r4.0 stable repository for the Fedora centos7 template.
To install this update, please use the standard update command:

sudo yum update

Changes included in this update

[qubesos-bot]

Automated announcement from builder-github

The package qubes-gui-agent_4.0.10-1+deb9u1 has been pushed to the r4.0 stable repository for the Debian template.
To install this update, please use the standard update command:

sudo apt-get update && sudo apt-get dist-upgrade

Changes included in this update

[qubesos-bot]

Automated announcement from builder-github

The package qubes-gui-agent_4.0.10-1+deb9u1 has been pushed to the r4.0 stable repository for the Debian template.
To install this update, please use the standard update command:

sudo apt-get update && sudo apt-get dist-upgrade

Changes included in this update

[qubesos-bot]

Automated announcement from builder-github

The component gui-agent-linux (including package pulseaudio-qubes-4.0.10-1.fc26) has been pushed to the r4.0 stable repository for the Fedora template.
To install this update, please use the standard update command:

sudo yum update

Changes included in this update

[qubesos-bot]

Automated announcement from builder-github

The component gui-agent-linux (including package pulseaudio-qubes-4.0.10-1.fc26) has been pushed to the r4.0 stable repository for the Fedora template.
To install this update, please use the standard update command:

sudo yum update

Changes included in this update