Re: i915 glamor freezes on NetBSD 10.1 amd64, modular-xorg

Given that the modesetting driver with acceleration is causing a hard freeze, the most viable alternative to try is the legacy xf86-video-intel driver. This driver, while older, can sometimes offer better stability on specific hardware generations.

To use the intel driver, you will need to create or modify your xorg.conf file (typically located in /etc/X11/) to specify the driver and an appropriate acceleration method.

Recommended xorg.conf Configuration:

Section "Device"

Identifier "Intel HD Graphics"

Driver "intel"

Option "AccelMethod" "uxa"

Option "TearFree" "true"

EndSection

On Sun, Jun 15, 2025, 8:51 PM Mayuresh <mayuresh%acm.org@localhost> wrote:

I am trying to get a laptop working with NetBSD 10.1.

Recently built modular X11 works with modesetting driver if AccelMethod is
set to None, else the system freezes requiring power cycle.

I have also installed the i915 firmware and an error message related to
that in dmesg is gone after it was added, but it did not matter to the
above issue.

Nothing unusual was found in the Xorg log when AccelMEthod was kept
enabled, not a single EE and glamor was reported as loaded and initialized
properly.

Other things tried:

- intel driver doesn't work with any accelerator option. (system freezes)
- wsfb works

Is any other driver worth trying? Is modesetting with acceleration known
to work, or not work, on above kind of setup?

--
Mayuresh