Problem with high resolution desktop screen

English Hardware
1

I have an Eizo FlexScan EV2736W with 2560 x 1440 resolution. Using an nvidia 670 card with
nvidia (not nouveau) driver.

Problem is font rendering - I gather this is somewhat of an issue now with high resolution
laptops. There is no problem with the card/monitor interaction. Graphics are produced exactly
as they should be. The fonts, however, are generally unreadable - especially within applications
such as vlc, firefox. Same problem seen on suse 13.1 or 12.2.
Same problem with kdm or motif (what I usually use).

I would appreciate any advice, help suggestions.

Thanks

2

Post a screenshot of the issue please.

3

That was an interesting request. I did an xwd dump of the screen showing several windows - including vlc, 2 x-terms and Libreoffice. Most of the
fonts were either unreadable or ragged. Back to my other monitor where I ran xv on the dump. Perfect. So perhaps I’m looking in the wrong place.

Input appreciated. I’ve included the screen image - apologies for size…

Screen shot http://math.rice.edu/~mjf8/images/window.gif

4

I should add I did a second screen shot ising ImageMagic - display: import -window root Screenshot.png

Same result. I also checked on the high resolution monitor - gave an accurate rendering of what I saw: unreadable or ragged fonts.

Mike

5

Try forcing 96 DPI for the display, you may need to edit the Xorg configuration files to do so.

Take a looksee here; https://wiki.archlinux.org/index.php/xorg#Display_size_and_DPI

6

I can’t see anything wrong??? Fonts look alright to me

maybe do a picture with a phone or camara if the picture don’t match what you see on the actual screen

7

I have tried various settings for dpi - including 96, 120 (true is 108) - but to no avail. (Restarted X, used randr --dpi 96, edited xorg.conf, etc).
On the resolution side, if I set at 1920x1080 (same proportions), fonts are fine. Higher (and some lower) resolutions
no good. Odd as 1920x1040 is 2560x1440 scaled down by 3/4.

What surprises me is the the screen dumps are fine, at least when I look at them on another machine.
This must mean something - but I am not sure what.

BTW on my old Dell Precision laptop the screen is 1902 x 1200: no problems ever.
Maybe I should try the nouveau driver - but the resolution is definitely within the
specs of the nvidia driver for 670 cards.

8

Problem is resolved. My fault: I had inadvertently used a DVI-D single link rather than dual link
cable. Apologies for time wasted and thanks for help.

9

I also have trouble with fonts on some programs, some of the letters are invisable. I have found if I close and re open the program it is ok the second time. I also have noticed that when playing music I get skips like an old record…
Eldon

10

You’re best advised to start your own new threads to attract the help that you need - one for each of the isssues you’ve referred to.

11

I had problems with fonts, too. The solution was to add the XOrg repo and do a zypper dup. Now the fonts look alright in all applications and the desktop performance is a little bit snappier.