5 Replies Latest reply on Nov 29, 2017 2:20 PM by grahamht@gmail.com

    AMD Settings fails to launch: 'Application failed to start because it could not find or load the Qt platform plugin "windows". '

    kenpatt

      Any ideas? AMD Settings throws this error on startup:

       

      AMDSettingsErrorCapture.PNG

      Edit: This is after 2 re-install attempts.

        • Re: AMD Settings fails to launch: 'Application failed to start because it could not find or load the Qt platform plugin "windows". '
          amdmatt

          Try using Windows System Restore to before this occurred, then try a clean install using DDU.

            • Re: AMD Settings fails to launch: 'Application failed to start because it could not find or load the Qt platform plugin "windows". '
              catchabreak

              go to C/AMD/"the folder is the crimson driver you installed"/ run setup will repair/uninstall driver. Latest driver folder is called Non-WHQL-Win10-64Bit-Radeon-Software-Crimson-16.10.1-Oct6 or Non-WHQL-Win10-32Bit-Radeon-Software-Crimson-16.10.1-Oct6. Some of the AMD  drivers seam to try  installing before fully uncompressed or in the wrong order and skip installing some parts of the driver. Reinstalling from the uncompressed folder in most cases fix`s this.

                • Re: AMD Settings fails to launch: 'Application failed to start because it could not find or load the Qt platform plugin "windows". '
                  kingfish

                  You are asking a question that requires at least the minimum of information about your computer...otherwise you are wasting everybody's time.

                  What graphics card?

                  What processor? APU?

                  Laptop or desktop?

                  We assume you have Win10 64 or 32 bit?

                  • Re: AMD Settings fails to launch: 'Application failed to start because it could not find or load the Qt platform plugin "windows". '
                    grahamht@gmail.com

                    Hi, this year old thread covers as near as I can tell the exact problem I have but not quite solving it. I have a Dell Inspiron 580, running Win10 (vsn 1703 build 15063.726, the latest) and new (on Tuesday 11/21) Graphics card VisionTek 7750.

                     

                    After running catchabreak's suggestion i.e. install from setup.exe in Non-WHQL ... folder the result was that the Display Adapter Driver Vsn is 23.20.793.0 (up from 23.20.788.0) but the problem was not solved. The problem is low resolution graphics, 1280x1024, not expected 2560 x 1440 from ASUS PB278. Not surprising, Device Manager unhelpfully says "Windows has stopped this device because it has reported problems. (Code 43)". I can find no clue as to what Code 43 means or its cause.

                     

                    I contacted VisionTek support last week and after trying a few things they decided that the card should be returned via Dell. It may yet be a hardware problem but I don't think so because I have seen the same symptoms (low res, Code 43) with previous Nvidia Card. Here is the history...

                     

                    The Nvidia card worked intermittently since spring. Problem showing up after MS updated Windows. At that time I was running two monitors. I Spent an hour with MS tech who "fixed" the main monitor by rolling back the driver (I gave up on the second monitor). A few weeks after the next Win 10 update low res was back again. But I discovered that if I did a "restart" after power on the problem went away until next power off. I limped along this way until the MS update 3 weeks ago.

                     

                    In an effort to solve this and restore the second monitor I bought the VisionTek 7750 which should run 3 hi res monitors. Imagine my disappointment when the same old problem was there!

                     

                    Yesterday I deleted all remanence of Nvidia, then ran DDU clean restart in Safe Mode. Ran the CD that came with the 7750. Same problem. I downloaded and ran AMD Crimson Relief 17.11.2. Same problem. It installed 23.20.788.0 driver.

                     

                    Today, after I powered up, a clue that led me to this thread. During boot up a modal window popped up that said approximately: Radeon Settings, Qt Platform Plugin "windows" missing in "".

                     

                    I found atikmdag_dce.log in the AMD folder. It appears to be a record that dates back to 11/21. This is the last section, of which there are 22 similar, if not the same, sections. It does not help me although 0kHz clocks looks a bit odd although it gets the monitor type, spec, count and connection right).

                     

                    [+00:000:000] {DispCLK:0kHz, Min SCLK:0kHz, Min MCLK:0kHz}

                    ^

                    [+00:284:592] [Conn_Hotplug] [HDMI-2] Connected

                    ^

                    [+00:000:000] [Conn_Detect] [HDMI-2] ASUS PB278: [EDID Block 0]

                     

                     

                    00 FF FF FF FF FF FF 00 04 69 A3 27 53 00 00 00

                    01 19 01 03 80 3C 22 78 2A A5 95 AA 54 4F A1 26

                    0A 50 54 B7 EF 00 D1 C0 B3 00 95 00 81 80 81 40

                    81 00 81 C0 71 4F 56 5E 00 A0 A0 A0 29 50 30 20

                    35 00 55 50 21 00 00 1A 00 00 00 FF 00 46 31 4C

                    4D 54 46 30 30 30 30 38 33 0A 00 00 00 FD 00 18

                    4C 18 63 21 00 0A 20 20 20 20 20 20 00 00 00 FC

                    00 41 53 55 53 20 50 42 32 37 38 0A 20 20 01 32

                    02 03 25 71 52 01 02 03 11 12 13 04 14 05 0E 0F

                    1D 1E 1F 90 20 21 22 23 09 17 07 83 01 00 00 65

                    03 0C 00 10 00 8C 0A D0 8A 20 E0 2D 10 10 3E 96

                    00 55 50 21 00 00 18 01 1D 00 72 51 D0 1E 20 6E

                    28 55 00 55 50 21 00 00 1E 01 1D 00 BC 52 D0 1E

                    20 B8 28 55 40 55 50 21 00 00 1E 8C 0A D0 90 20

                    40 31 20 0C 40 55 00 55 50 21 00 00 18 00 00 00

                    00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 98

                    ^

                    [+00:000:000] [Conn_PHY_SIZE] [HDMI-2]  [X Dim:600mm, Y Dim:340mm]

                    ^

                    [+00:000:000] [Conn_HDMI_VER] [HDMI-2] 1.4

                    ^

                    [+00:000:000] [Conn_native_mode] [HDMI-2] {2560x1440@60Hz}

                    ^

                    [+00:000:000] [Conn_HDCP_VER] [HDMI-2] 1.4

                    ^

                    [+00:239:337] [Conn_Num_Display] 1

                     

                    PS, I changed the PSU thinking it might be the issue. I now have a Corsair VS500