7 Replies Latest reply on Jan 16, 2010 9:48 AM by the_wine_snob

    Why does 4.2.1 update kill preview?

    ajbloom

      If I update Premiere Pro from 4.0 to 4.2.1, the video preview goes from usuable to either blank or random pixels. This is true in the small project screen and in the scalable Program window. My naive guess is that it is a codec problem, but does the update substitute codecs?

       

      I am running a Lenovo X200 with 3 GB on Windows XP SP3.

       

      Thanks!

        • 1. Re: Why does 4.2.1 update kill preview?
          ajbloom Level 1

          One idea that I had is that the updates to Premiere Pro

          4.0 have slowed the program to the point that Intel 4500 MHD Graphics Chip can no longer keep up with HD mts files.

           

          Does this sound reasonable?

          • 2. Re: Why does 4.2.1 update kill preview?
            Harm Millaard Level 7

            First try the http://ppbm4.com benchmark and mail the results to Bill. That will show how your system performs in comparison to others.

            • 3. Re: Why does 4.2.1 update kill preview?
              ajbloom Level 1

              Thanks. I followed the excellent instructions on the benchmarks and sent him a file

              with the results printed below:

               

              BloomLenovoX200,   Personal or Computer ID
              Lenovo,  Computer Manufacturer
              Lenovo x200 7458,   Computer Model
              242.8,  secs Total Benchmark Time
              48,  secs AVI  Encoding Time
              97.8,  secs MPEG Elapsed Time
              97,  secs Rendering Time
              Intel,    CPU Manufacturer
              P8400,    CPU Model
              2.26,    GHz CPU speed
              1,    Number of CPU chips
              2,    Total Number of Cores
              3,    GB RAM
              4.0,    APP Version PPBM4 DV
              Win XP Pro,    OSVersion
              SATA,    OS Disk Interface
              320,    GB OS Disk Capacity
              7200,    OS Disk Speed
              Same as OS,    Project Disk Interface
              Same as OS,    GB Project Disk Capacity
              Same as OS,    Project Disk Speed
              Same as OS,    Preview Disk Interface
              Same as OS,    GB Preview Disk Capacity
              Same as OS,    Preview Disk Speed
              Same as OS,    Output Disk Interface
              Same as OS,    GB Output Disk Capacity
              Same as OS,    Output Disk Speed
              Built in Intel GMA 4500MHD,    Graphics Board
              I think that the speed of the graphics chip is limiting playback of HD files. Does this benchmark test this?,    Comment

              • 4. Re: Why does 4.2.1 update kill preview?
                Harm Millaard Level 7

                This shows a couple of limitations:

                 

                1. Only a dual core CPU

                2. Only a single disk

                3. Integrated graphics card.

                 

                The three factors combined lead to rather low scores. 48s for the AVI test show a severely lacking disk setup. The render timeline results show both the lacking disk setup and the graphics card limitations. I'll wait for Bill to include the results and to give further comments, but you have a seriously underpowered system for HD material, specially if it is AVCHD.

                • 5. Re: Why does 4.2.1 update kill preview?
                  ajbloom Level 1

                  Thanks again! Yes I am trying to work with AVCHD, which puts an additional burden on the processor. Unfortunately, I am working on the road and thus am limited to a notebook. I could attach a 7200 rpm USB drive that I have as additional storage, but I do not think this would address the video preview problem, which is my main issue now.

                  • 6. Re: Why does 4.2.1 update kill preview?
                    Harm Millaard Level 7

                    Your notebook is certainly not bad. It is in the same league as my own notebook (Vaio VGN-FW31ZJ) but is no comparison to a dedicated desktop/workstation system. If possible, I would at least add an external eSATA disk for on-the-road use, not a USB external. The main problem is that realistically AVCHD requires an i7 processor and that means a new notebook. Also your integrated graphics card does not help. But it is a rather drastic step to say, get a new notebook. For applications like On-Location it is quite sufficient, for editing you can see the results in the benchmark. 6-10 x slower than the top-performing system.

                    • 7. Re: Why does 4.2.1 update kill preview?
                      the_wine_snob Level 9

                      I strongly second Harm's comment on eSATA for any external. Besides the horribly slow throughput of USB, many (myself included) have had issues with Delayed Write failures and other Read/Write errors.

                       

                      Good luck,

                       

                      Hunt

                       

                      BTW - if you do envision getting a new laptop, check out the Sager line, before you spring for one.