On Wednesday 08 February 2017 21.56:32 deloptes wrote: > Thierry de Coulon wrote: > > My problem is this: while I have the screen resolution setup to 1920x1080 > > (and trinity desktop looks OK for this resolution), the monitor (which is > > accessed from HDMI through an HDMI to VGA converter because I use a KVM > > that needs VGA connectors) was initially "seen" as 1024x768. > > It is interesting to know what is the output of xrandr > > I have/had similar issues with my notebook(s) and external monitor. > Natively eDP1 supports 1366x768, while monitor does 1920x1080. > > So switching on and of the one and the other messed up from time to time > the modesettings and I end up with unusable resolution. The external would > refuse to accept 1920x1080. It improved recently with later 4.9 kernel and > I did not test extensively. > One option was to configure monitors in xorg.conf with their mod lines. I > did this on the older notebook > I however use now xrandr --scale as X tends to pick up the lowest common > and it can not support different resolutions or whatever. So I put the > bigger one to 1920x1080 and scale eDP1., which gives acceptable output. > > I have read of similar issues with KVM. > > regards > That's what I get: Screen 0: minimum 320 x 200, current 1920 x 1080, maximum 8192 x 8192 DP1 disconnected (normal left inverted right x axis y axis) HDMI1 connected 1920x1080+0+0 (normal left inverted right x axis y axis) 256mm x 192mm 1024x768 60.00 + 1920x1080 60.00* 59.94 1280x1024 85.02 60.02 1440x900 74.98 59.90 1280x960 60.00 1360x768 60.02 1280x800 59.91 1280x720 119.99 60.00 59.94 720x480 60.00 59.94 To me it seems the chipset by itself can do a lot of resolutions. I am new to HDMI (I actually don't use it anwhere as I have no monitor with such a connector). So I can't test what would happen if I had a direct connection to the monitor. I could imagine that the chain HDMI - HDMI to VGA (cheap chinese thing, by the way) - KVM switch - monitor is too much for a system that desperately tries to identify the monitor by itself. In the old time I would have been asked what my screen was... Thierry --------------------------------------------------------------------- To unsubscribe, e-mail: trinity-users-unsubscribe@xxxxxxxxxxxxxxxxxxxxxxxxxx For additional commands, e-mail: trinity-users-help@xxxxxxxxxxxxxxxxxxxxxxxxxx Read list messages on the web archive: http://trinity-users.pearsoncomputing.net/ Please remember not to top-post: http://trinity.pearsoncomputing.net/mailing_lists/#top-posting
