#13547: 2560x1600 HDMI screen limited to 1920x1200
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Reporter: mounty | Owner: nobody
Type: bug | Status: new
Priority: normal | Milestone: Unscheduled
Component: Drivers/Graphics | Version: R1/Development
Keywords: | Blocked By:
Blocking: | Has a Patch: 0
Platform: x86 |
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On an Intel NUC machine with this graphics card:
# lspci|grep -i vga
00:02.0 VGA compatible controller: Intel Corporation Haswell-ULT
Integrated Graphics Controller (rev 09)
the highest resolution on screen preferences is 1920x1200 whereas the
native resolution is 2560x1600. The display is 'repeated' (tiled) across
the full resolution. I do believe that I have run Haiku at full
resolution on this hardware, to a confidence of 95% (i.e., it's based on a
non-recent memory only).
This may be related to a similar bug that I reported for versions of the
Linux kernel beyond 4.9.0:
https://bugs.freedesktop.org/show_bug.cgi?id=101245
Summary of that bug: a confusing or nonsensical EDID from the monitor
causes the driver to set the wrong resolution.
In the case of Linux however, it is possible to use //xrandr// commands to
set the full resolution, after booting. I don't know if an analogous
command exists for Haiku.
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Ticket URL: <https://dev.haiku-os.org/ticket/13547>
Haiku <https://dev.haiku-os.org>
The Haiku operating system.
