Re: [GTALUG] flickering [was Has the graphics-card world gone mad?]

2021-04-04 Thread Russell Reiter via talk
On Sun, Apr 4, 2021 at 10:26 AM D. Hugh Redelmeier via talk wrote: > | From: Evan Leibovitch via talk > > Thanks for the more complete information. > > What the exact brand and model of your Radeon RX 550? Are you sure > that the HDMI port conforms to HDMI 2.x? > > Remember that I'm not an expe

Re: [GTALUG] flickering [was Has the graphics-card world gone mad?]

2021-04-04 Thread D. Hugh Redelmeier via talk
| From: Evan Leibovitch via talk Thanks for the more complete information. What the exact brand and model of your Radeon RX 550? Are you sure that the HDMI port conforms to HDMI 2.x? Remember that I'm not an expert. Jose Dias' experiment seems worthwhile. | The left (HDMI) screen will (rando

Re: [GTALUG] flickering [was Has the graphics-card world gone mad?]

2021-04-03 Thread Jose Dias via talk
Evan Leibovitch , Evan Leibovitch via talk Subject: Re: [GTALUG] flickering [was Has the graphics-card world gone mad?] Sorry, just saw this buried under a whole bunch of crap. Thanks for the offer of help. Here is the config. Once ran Linux and was driving me crazy, now runs Windows. The monitors: T

Re: [GTALUG] flickering [was Has the graphics-card world gone mad?]

2021-04-03 Thread Evan Leibovitch via talk
Sorry, just saw this buried under a whole bunch of crap. Thanks for the offer of help. Here is the config. Once ran Linux and was driving me crazy, now runs Windows. The monitors: Two identical 28" Samsung 4K monitors (model U28E590D), mounted vertically. The video card has one DVI, one Displaypo

[GTALUG] flickering [was Has the graphics-card world gone mad?]

2021-03-31 Thread D. Hugh Redelmeier via talk
| From: Evan Leibovitch via talk | I have a | Radeon RX 550 that is struggling to drive two 4K screens. It works, but | plenty of flickering under both Linux and Windows. Back to your original problem. I find vieo problems hard to diagnose. That's because the whole stack is complex and non-in