Gnome QT render problem after the update

After the latest release QT apps aren’t rendering properly. I used kvantum theme to apply different theme. But it behaved same.

  • background doesn’t apply dark mode.
  • Text is not visible [As shown in screenshot]
  • Applying white theme in Kvantum also doesn’t help.

Is there any fix for it?

#################### inxi -Fxzc0 ########################

System:    Kernel: 5.8.11-1-MANJARO x86_64 bits: 64 compiler: N/A Desktop: GNOME 3.36.6 
           Distro: Manjaro Linux 
Machine:   Type: Laptop System: ASUSTeK product: X550JK v: 1.0 serial: <filter> 
           Mobo: ASUSTeK model: X550JK v: 1.0 serial: <filter> UEFI: American Megatrends 
           v: X550JK.304 date: 04/16/2019 
Battery:   ID-1: BAT0 charge: 10.7 Wh condition: 11.2/32.6 Wh (35%) model: ASUSTeK X550A30 
           status: Charging 
CPU:       Topology: Dual Core model: Intel Core i5-4200H bits: 64 type: MT MCP arch: Haswell 
           rev: 3 L2 cache: 3072 KiB 
           flags: avx avx2 lm nx pae sse sse2 sse3 sse4_1 sse4_2 ssse3 vmx bogomips: 22357 
           Speed: 2856 MHz min/max: 800/3400 MHz Core speeds (MHz): 1: 2798 2: 2801 3: 2814 
           4: 2795 
Graphics:  Device-1: Intel 4th Gen Core Processor Integrated Graphics vendor: ASUSTeK driver: i915 
           v: kernel bus ID: 00:02.0 
           Device-2: NVIDIA GM107M [GeForce GTX 850M] vendor: ASUSTeK driver: nvidia v: 450.66 
           bus ID: 01:00.0 
           Device-3: Realtek USB Camera type: USB driver: uvcvideo bus ID: 1-7:5 
           Display: x11 server: 1.20.9 driver: modesetting,nvidia 
           resolution: <xdpyinfo missing> 
           OpenGL: renderer: Mesa DRI Intel HD Graphics 4600 (HSW GT2) v: 4.5 Mesa 20.1.8 
           direct render: Yes 
Audio:     Device-1: Intel Xeon E3-1200 v3/4th Gen Core Processor HD Audio driver: snd_hda_intel 
           v: kernel bus ID: 00:03.0 
           Device-2: Intel 8 Series/C220 Series High Definition Audio vendor: ASUSTeK 
           driver: snd_hda_intel v: kernel bus ID: 00:1b.0 
           Sound Server: ALSA v: k5.8.11-1-MANJARO 
Network:   Device-1: Qualcomm Atheros QCA9565 / AR9565 Wireless Network Adapter vendor: AzureWave 
           driver: ath9k v: kernel port: e000 bus ID: 03:00.0 
           IF: wlp3s0 state: down mac: <filter> 
           Device-2: Realtek RTL8111/8168/8411 PCI Express Gigabit Ethernet vendor: ASUSTeK 
           driver: r8169 v: kernel port: d000 bus ID: 04:00.1 
           IF: enp4s0f1 state: up speed: 100 Mbps duplex: full mac: <filter> 
Drives:    Local Storage: total: 1.02 TiB used: 6.89 GiB (0.7%) 
           ID-1: /dev/sda vendor: Western Digital model: WDS120G2G0A-00JH30 size: 111.80 GiB 
           ID-2: /dev/sdb vendor: Seagate model: ST1000LM024 HN-M101MBB size: 931.51 GiB 
Partition: ID-1: / size: 111.50 GiB used: 6.58 GiB (5.9%) fs: btrfs dev: /dev/sda2 
           ID-2: /home size: 100.00 GiB used: 316.8 MiB (0.3%) fs: btrfs dev: /dev/sdb1 
Swap:      Alert: No Swap data was found. 
Sensors:   System Temperatures: cpu: 91.0 C mobo: N/A 
           Fan Speeds (RPM): cpu: 3800 
Info:      Processes: 338 Uptime: 51m Memory: 7.66 GiB used: 2.10 GiB (27.4%) Init: systemd 
           Compilers: gcc: 10.2.0 Packages: 1151 Client: shell wrapper v: 5.0.18-release 
           inxi: 3.1.05

A temporary workaround was reported here for light themes.


A temporary solution is to set ‘KvGnomeDark’ theme from kavantum manager. It fixes the font problems.