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KenMacD

Member

Registered: 2014-01-06

Posts: 21

Scale X applications on high resolution displays, possible?

Hello,

I'm looking for suggestions on how to scale up applications.

I'm working on a laptop with a 13" 3200x1800 screen running KDE. I like the native resolution, but I'd like to run some applications at a scale of 2:1. Mostly wine applications and remote desktop clients.

Currently I'm running a second X with a different resolution, but that's kind of a pain. I'd like something to keep all the applications together, or at least on the same desktop.

I've tried using Xephyr by running:

$ Xephyr :1 -ac -dpi 96 -screen 1024x768 &

and scaling it with randr, but it doesn't seem to work (even for 1x1):

$ DISPLAY=:1 xrandr --output default --mode 1024x768 --scale 1x1
xrandr: Failed to get size of gamma for output default
X Error of failed request:  BadValue (integer parameter out of range for operation)
Major opcode of failed request:  140 (RANDR)
Minor opcode of failed request:  26 (RRSetCrtcTransform)
Value in failed request:  0x188
Serial number of failed request:  21
Current serial number in output stream:  22

Suggestions?

shutdown -h now

Member

Registered: 2012-11-07

Posts: 18

Re: Scale X applications on high resolution displays, possible?

I actually have a similar question. I play a game in wine wherein information is top priority (this might or might not be EVE Online), so it's mandatory to get as much of it as possible on your screen. I would like to set it to a relatively big resolution, scale it down to 1920x1066 (full HD -awesomewm status bar) and see if it's clear enough to be playable.

So far I found a solution dated 5 years ago that uses Xephyr with a VNC to achieve this: http://tfischernet.wordpress.com/2009/0 … ms-in-wine

I haven't tested it yet, but I fear that the VNC client creates to much overhead (on the other hand this might be unavoidable when scaling resolutions), so I am curious to find a solution that uses only awesomewm and/or Xephyr (or something comparable).

This would btw also be very handy to get retro games (like ScummVM, Sam & Max for example) running in a freely scalable window.