On Tue, 15 Jul 2025 04:32:36 GMT, Harshitha Onkar <hon...@openjdk.org> wrote:
>> On Linux, we are currently use XRRSetScreenConfigAndRate to change the >> display mode. This works in most cases, except for some VNC-configured >> hosts, where the display change may not occur. >> One of the conformance tests fails on these hosts. >> >> It was discovered, that the xrandr utility app works fine on these hosts and >> uses the Crtc and Output Randr APIs, which provide more fine-grained control >> over display settings. >> >> This changeset utilizes the Crtc and Output Randr APIs to change the display >> mode. >> >> Currently, changing the display mode is only [available when running a >> single >> screen](https://github.com/openjdk/jdk/blob/a86dd56de34f730b42593236f17118ef5ce4985a/src/java.desktop/unix/classes/sun/awt/X11GraphicsDevice.java#L365). >> This limitation remains, but we may remove it in the future. A separate >> issue [has been filed](https://bugs.openjdk.org/browse/JDK-8361968) for this >> purpose. >> >> The `awt.x11useOldConfigDisplayMode` system property enables the old >> behavior. Perhaps there's a better name for it. >> >> Testing looks good on VNC and local machines. > > src/java.desktop/unix/native/common/awt/awt_GraphicsEnv.h line 65: > >> 63: }; >> 64: >> 65: #define MAX_DISPLAY_MODES 256 > > File requires copyright year update It can be handled as a batch copyright year update. ------------- PR Review Comment: https://git.openjdk.org/jdk/pull/26268#discussion_r2206491921
