Felix Miata wrote: > deloptes composed on 2018-05-15 20:43 (UTC+0200): > >> I used till now DVI to connect the PC to the monitor. I recently bought a >> digitus 4K HDMI switch 4x1 to be able to switch between 3 HDMI inputs. > > What model is that switch? > Felix, I wonder sometimes if you really read the posts. I said it is "digitus 4K HDMI switch 4x1" - you ask what model. >> However when I switched on the PC and X started, all was messed. >> Default resolution was 1280x720 instead 1920x1080. >> The display area is partially out of the monitor size, so that the panel >> is not visible and lastly the quality of the image was really bad (like >> insufficient frequency or sync or whatever) > >> I switched back to the DVI cable and I am wondering if someone can point >> me to the right direction. > > IME, most manufacturers of HDMI switches are incapable of making them work > correctly - unless they do NOT include and automatic switching mode. > Apparently they think everyone who uses them turns HDMI devices off when > not in use (selected as the output by the switch). > > The only one I've ever encountered that works reliably has no automatic > switching function and is a long ago discontinued model. > > Other than returning the switch as "defective", I can only think to > suggest two things: > > 1-power off all HDMI sources except the one you wish selected, then cycle > the power to the switch. > > 2-manually configure Xorg using xorg.conf to exclude possible modes except > 1920x1080. (Set PreferredMode, and set HorizSync and VertRefresh to narrow > ranges that can only compute to the 1920x1080 mode published in the manual > or provided by EDID when connected without the switch inline). IMO I need to set the physical size in xorg.conf, but your comment reminds me to check the EDID. I wonder if the monitor can talk to the PC at all regards --------------------------------------------------------------------- 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
