I bought a 55' c9 on Monday, and while it doesnt seem to have verticle banding (it did, but cleared up after the first pixel refresh), it does seem to have wierd horizontal banding on bright content. Check the video cables. 6) 5% Grey scale from my 2nd panel after LG replaced the first one. It has much better uniformity. ... (I don't have the C9, but this is how it works on my LG Freesync PC monitor). It especially apparant in games with HDR. LG TV - Troubleshooting Horizontal or Vertical Lines (webOS) [Narrator] Lines appear on my TV screen what do I need to do. posted 2018 … All the above are from my first panel. Participant reference: whrl.pl/Re8Yap. Got a C9 65” today, beautiful but I’ve noticed slight banding (horizontal and a single vertical band) on white colors in HDR with Death Stranding. It looked pretty much like that in real life. Just my 2 cents I can still see bands but … It only makes sense because samsung makes that 8500 4k player that out perormed other well known players in this regard. It’s minor but will it get worse over time or is it something that goes away? Hi all. morphball. from May 2018; to June 2018; last updated – posted 2018-Jun-12, 5:13 pm AEST posted 2018-Jun-12, 5:13 pm AEST User #546443 83 posts. If you have a 2019 or 2020 lg oled it is really easy using the internal pattern generator and AutoCal. Lg was second and Sony last (940d, 9z) as far as color banding. According to CR Samsung ks9800 beat out LG and Sony in color banding stating that transition from dark to bright areas is best on sammy ks9800. 5) Banding from the Infamous panning shot in Arrival (18:48). If the lines are also found on different channels, try changing an input. And my X900F has color banding as well in the sky. I definitely recommend either calibrating your tv yourself or getting it done. LG C7 65' OLED Horizontal Lines Problem. LCD/LED Monitor: 1. If there are vertical or horizontal lines on the screen it could mean that the refresh rate on your display needs to be changed. You can also run the picture test. Archive View Return to standard view. This could also be indicator of an issue with the panel of the display. When you see lines on your TV screen, move on to other channels to check. If this is the case then you may need to request an RMA.