Hello, NVIDIA dev team! I am experiencing the following bug:
Steps to Reproduce:
- Boot Linux Mint 19.1 on a dual-screen setup using 415.27 driver
- Enable “Force Full Composition” pipeline for both screens
- Open an app that uses QT4, e.g., VLC, XnConvert, VirtualBox, ownCloud client
After enabling “Force Full Composition Pipeline”, some apps’ UI fonts (seems to be ones that use QT4) shrink down to 9pt.
Font sizes should not change after enabling “Force Full Composition Pipeline”.
- Issue occurs with less apps when using 415.27 driver as opposed to 396.54 (e.g., VLC is not affected on 415 driver)
- Issue only occurs on my desktop PC, not my laptop PC
- Changing font size in qt4-qtconfig does nothing
- Some affected apps are snaps, others installed via PPA
- Font sizes are ok again after rebooting (i.e. with “Force Full Composition Pipeline” disabled again)
- Screenshot of UI with small fonts attached
- Log attached
- Graphics card: NVIDIA Corporation GP102 [GeForce GTX 1080 Ti]
- NVIDIA driver: 415.27
- Display 1: DP-0: BenQ BL3200
- Display 2: HDMI-0: Denon AVR 7.1 surround receiver => AOC M2870VHE
- OS: Linux Mint 19.1 Cinnamon
- Cinnamon version: 4.0.9
- Linux kernel: 4.15.0-45-generic
- CPU: Intel© Core™ i7-4790K CPU @ 4.00GHz × 4
Perhaps you have any idea why some apps get locked on really small fonts after enabling the option? It seems to be the only reliable way to combat screen tearing on Linux (at least Mint), so I’m hoping there’s a fix for this.
nvidia-bug-report.log.gz (665 KB)