Eagle fails on monitor with high resolution with ubuntu 20.04

[Anonymous]

Hi,

I have used eagle-9.3.0 successfully with nvidia drivers  on a 4K monitor. After changing to a new monitor with 5120 x 1440, eagle fails to start:

Sandboxing disabled by user.
[5382:5397:0706/121010.097688:ERROR:nss_util.cc(808)] After loading Root Certs, loaded==false: NSS error code: -8018

after this message, the command hangs for ~2 minutes, then it shows a lot of messages  starting with

Qpainter:: ...

finally, it quits after showing this message:

The X11 connection broke: Maximum allowed requested length exceeded (code 4)
XIO: fatal IO error 0 (Erfolg) on X server ":1"
after 598 requests (594 known processed) with 0 events remaining.
The X11 connection broke: Maximum allowed requested length exceeded (code 4)
XIO: fatal IO error 0 (Erfolg) on X server ":1"
after 598 requests (594 known processed) with 0 events remaining.
[5405:5405:0100/000000.333530:ERROR:broker_posix.cc(41)] Invalid node channel message

When I change to a lower resolution (2560x1440) eagle starts up. This is not usable, however, because the display is scaled 2:1. The same thing happens with eagle-9.6.2.

[natasha.l]

Hello @Anonymous, 

Thanks for posting here. I see that you mentioned a Linux operating system. 

I have copied the system requirements for Eagle on a Linux system below: 

Linux

Linux® based on kernel 2.6 for Intel computers, X11 with a minimum color depth of 8 bpp, the following runtime libraries: libssl.so.1.0.0, libcrypto.so.1.0.0, and CUPS for printing. For the 64-bit version EAGLE requires a 64 bit-operating system and libc.so.6 with sub version GLIBC_2.14 or higher.

If you have verified this information, be sure to review the Certified Graphics Hardware check the GPU manufacturer's website to see if it was designed to run with Autodesk software & to verify that your drivers are up to date.

Also, try making adjustments to the resolution for your Eagle application you may need to figure out what resolution settings work best with this monitor by testing different settings, like in this post. 

There have also been updates that have helped resolve some of these issues, so visit your Autodesk Account & apply all product updates.

Please "Accept Solution" if a reply or replies have helped resolve the issue or answered your question, to help others in the community.

[Anonymous · Accepted solution]

Hi,
your link to the post with "Win 10 screen resolution problem" helped me to find the solution:

1. change display resolution to 2560x1440
2. start eagle
3. in the user interface menu, disable "Enable High DPI Scaling" and "Enable Auto Screen Scale Factor"
4. quit eagle
5. change display resolution back to 5120x1440
6. start eagle again => it works with the high resolution now!!

Thanks a lot for your help!