Opened 21 months ago

Closed 13 days ago

#13547 closed bug (fixed)

2560x1600 HDMI screen limited to 1920x1200

Reported by: mounty Owned by: nobody
Priority: normal Milestone: Unscheduled
Component: Drivers/Graphics Version: R1/Development
Keywords: Cc:
Blocked By: Blocking:
Has a Patch: no Platform: x86

Description

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.

Change History (3)

comment:1 Changed 19 months ago by acypkob

which driver was loaded for your video? use

listimage | grep driver

to show us your videodriver loaded

comment:2 Changed 13 days ago by mounty

This is fixed now. Please close.

comment:3 Changed 13 days ago by diver

Resolution: fixed
Status: newclosed
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