Here are two systems, one Nvidia GPU and the other Intel, with kdenext repo enabled, updated as of 14:00 Eastern U.S. time today. I have a 6 hour time delay from Germany, plus the delay from siduction repo to my mirror at UDEL, so it is possible that something different will happen tomorrow morning. But as of now, they both function correctly. On the laptop, there is a long pause on the KDE splash -- perhaps 30 seconds -- this has been the case for a month or more. The Nvidia system stays on the splash for a shorter time before transitioning to the desktop.
System: Host: hp-350g Kernel: 4.3.0-towo.3-siduction-amd64 x86_64 (64 bit gcc: 5.2.1)
Desktop: KDE Plasma 5.4.2 (Qt 5.5.1)
Distro: siduction 14.1.0 Indian Summer - kde - (201411230337)
Machine: System: Hewlett-Packard product: HP 350 G1 v: 0992100000400010000634101
Mobo: Hewlett-Packard model: 21B7 v: KBC Version 46.0B
Bios: Insyde v: F.12 date: 06/12/2014
CPU: Dual core Intel Core i5-4210U (-HT-MCP-) cache: 3072 KB
flags: (lm nx sse sse2 sse3 sse4_1 sse4_2 ssse3 vmx) bmips: 9581
clock speeds: max: 2700 MHz 1: 1696 MHz 2: 1640 MHz 3: 1688 MHz 4: 1770 MHz
Graphics: Card: Intel Haswell-ULT Integrated Graphics Controller bus-ID: 00:02.0
Display Server: X.Org 1.17.3 drivers: intel (unloaded: fbdev,vesa)
Resolution: 1366x768@59.99hz
GLX Renderer: Mesa DRI Intel Haswell Mobile
GLX Version: 3.0 Mesa 11.0.4 Direct Rendering: Yes
Network: Card-1: Realtek RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller
driver: r8169 v: 2.3LK-NAPI port: 4000 bus-ID: 01:00.0
IF: eth0 state: down mac: 34:64:a9:d0:2d:f0
Card-2: Ralink RT3290 Wireless 802.11n 1T/1R PCIe
driver: rt2800pci v: 2.3.0 bus-ID: 02:00.0
IF: wlan0 state: up mac: xxxxxxxxx
Drives: HDD Total Size: 500.1GB (15.6% used) ID-1: model: Samsung_SSD_840
Info: Processes: 242 Uptime: 3 min Memory: 1216.2/3878.3MB
Init: systemd runlevel: 5 Gcc sys: 5.2.1
Client: Shell (bash 4.3.421) inxi: 2.2.28
System: Host: Hibiscus Kernel: 4.3.0-towo.3-siduction-amd64 x86_64 (64 bit gcc: 5.2.1)
Desktop: KDE Plasma 5.4.2 (Qt 5.5.1) Distro: siduction 14.1.0 Indian Summer - kde - (201411230337)
Machine: System: ASUS product: All Series
Mobo: ASUSTeK model: Z87-WS v: Rev 1.xx Bios: American Megatrends v: 2004 date: 06/05/2014
CPU: Quad core Intel Core i7-4770 (-HT-MCP-) cache: 8192 KB
flags: (lm nx sse sse2 sse3 sse4_1 sse4_2 ssse3 vmx) bmips: 28022
clock speeds: max: 3900 MHz 1: 3526 MHz 2: 3400 MHz 3: 3703 MHz 4: 3401 MHz 5: 3400 MHz 6: 3504 MHz
7: 3402 MHz 8: 3402 MHz
Graphics: Card: NVIDIA GM107 [GeForce GTX 750 Ti] bus-ID: 05:00.0
Display Server: X.Org 1.17.3 driver: nvidia Resolution: 1920x1200@59.88hz
GLX Renderer: GeForce GTX 750 Ti/PCIe/SSE2 GLX Version: 4.5.0 NVIDIA 352.55 Direct Rendering: Yes
Network: Card-1: Intel I210 Gigabit Network Connection driver: igb v: 5.3.0-k port: d000 bus-ID: 07:00.0
IF: eth0 state: up speed: 100 Mbps duplex: full mac: xxxxxxxxxxxx
Card-2: Intel I210 Gigabit Network Connection driver: igb v: 5.3.0-k port: a000 bus-ID: 0a:00.0
IF: eth1 state: down mac: xxxxxxxxx
Drives: HDD Total Size: 3120.7GB (26.7% used) ID-1: model: WDC_WD1001FALS
ID-2: model: OCZ ID-3: model: OCZ
ID-4: model: WDC_WD1000DHTZ ID-5: model: WDC_WD1000DHTZ
Info: Processes: 306 Uptime: 5 min Memory: 1850.5/7927.7MB Init: systemd runlevel: 5 Gcc sys: 5.2.1
Client: Shell (bash 4.3.421) inxi: 2.2.28