Re: [Ql-Users] Q40 and Q60 video controller for flatscreen monitors
Am 01.05.2018 um 20:55 schrieb Thierry Godefroy via Ql-Users: > On Tue, 1 May 2018 19:26:56 +0200, Peter Graf via Ql-Users wrote: > >> Most flatscreens misunderstand the signal as 800x600, leading to bad >> interpolation. > > Among the 3 LCD monitors I own, only the latest is able to (badly) sync > the Q60 video signal and it does as if it would be a 640x480 VGA mode > with 38.3KHz horizontal and 71.4Hz vertical frequencies, so the sampling > of the pixels is extremely bad, and it fails to display the last 32 > lines... > > Interestingly, my last functionning CRT monitor, that displays the Q60 > mode just fine (thanks to the 100% analogous processing of the signal), > also reports a 640x480 38KHz/71Hz mode. Sorry I wasn't precise. I was not referring to the original signal, but the general issue with 1024x512, after improving timings for flatscreen already. I generated more suitable 1024x512 signals (with relaxed front/back porch timings) that are accepted but misunderstood. Peter ___ QL-Users Mailing List
Re: [Ql-Users] Q40 and Q60 video controller for flatscreen monitors
On Tue, 1 May 2018 19:26:56 +0200, Peter Graf via Ql-Users wrote: > Most flatscreens misunderstand the signal as 800x600, leading to bad > interpolation. Among the 3 LCD monitors I own, only the latest is able to (badly) sync the Q60 video signal and it does as if it would be a 640x480 VGA mode with 38.3KHz horizontal and 71.4Hz vertical frequencies, so the sampling of the pixels is extremely bad, and it fails to display the last 32 lines... Interestingly, my last functionning CRT monitor, that displays the Q60 mode just fine (thanks to the 100% analogous processing of the signal), also reports a 640x480 38KHz/71Hz mode. Thierry. ___ QL-Users Mailing List
Re: [Ql-Users] Q40 and Q60 video controller for flatscreen monitors
On Tue, May 1, 2018 at 12:26 PM, Peter Graf via Ql-Users < ql-users@lists.q-v-d.com> wrote: > Dave Park via Ql-Users wrote: > > > What are the frames per second and number of lines in the image? > > Originally 72 Hz, 512 visible lines. Even just counting the visible pixels, the upgrade position looks untenable. 512x256x72 = 9,437,184 dot clock 800x600x50 = 28,800,000 " 800x600x25 = 14,400,000 " 1080x720x30 = 19,440,000 " 1080x720x15 = 9,720,000 " 1080x720x12 = 9,331,200 " Hmmm, I see the limitation... It strikes me that 1080P at half intended frame rate, then externally frame doubling using new hardware on the output would give 1080P/24, /25 or /30, but... It requires an external frame doubler. That could be as simple as a pair of FIFOs and a small CPLD though. I wonder if 12fps would cause people to complain about responsiveness during online gaming ;) -- Dave Park d...@sinclairql.com ___ QL-Users Mailing List
Re: [Ql-Users] Q40 and Q60 video controller for flatscreen monitors
Dave Park via Ql-Users wrote: > What are the frames per second and number of lines in the image? Originally 72 Hz, 512 visible lines. > What 'legal' signal is it most similar to? At design time it was fine to use any legal resoltion of a multisync CRT monitor. The idea was to stay at the QL-style 2:1 ratio on 4:3 screen, epscially for the QL modes 4 and 8. Most flatscreens misunderstand the signal as 800x600, leading to bad interpolation. > Is it possible to alter the frame rate Yes I did that, as I wrote. > and/or to supply a pixel clock signal? Yes, but it is at the very maximum. Otherwise I would of course have increased it already. > This could open up the option of DVI conversion. (I have never > owned a QX0 and don't know if it uses a card or custom logic.) There is a slight chance to generate a pseudo FullHD signal, but only at unusually low frame rate. I keep looking at that, but it is difficult, logic was already optimized extremely to fit the chip. And not all monitors would accept it. > I'm just trying to understand the problem and why the LCD monitor won't > sync the nonstandard signal. Some do sync, but usually blur the picture by sampling 800 points on a 1024 horizontal line. > If it's just one aspect of the signal it may > be easily fixable and retain full screen display. Not easily fixable, I would have done so. Peter ___ QL-Users Mailing List
Re: [Ql-Users] Q40 and Q60 video controller for flatscreen monitors
I have delved into video conversion and signal processing in some detail for the QL, I have a few questions about the original signal: What are the frames per second and number of lines in the image? What 'legal' signal is it most similar to? Is it possible to alter the frame rate, and/or to supply a pixel clock signal? This could open up the option of DVI conversion. (I have never owned a QX0 and don't know if it uses a card or custom logic.) I'm just trying to understand the problem and why the LCD monitor won't sync the nonstandard signal. If it's just one aspect of the signal it may be easily fixable and retain full screen display. If there are multiple elements to the problem, then not. Having access to the pixel clock and being able to manipulate the frame rate to 30 FPS - or even better 60FPS - would be extremely useful. On Tue, May 1, 2018 at 9:47 AM, Wolf via Ql-Users wrote: > Hi all, > > > > I have developed an alternative video controller for Q40 and Q60: > > > I've been testing this for a few months now. At last I can use the Q60 > with a more modern flatscreen with VGA and 1024*768 resolution. > > The image is correctly displayed, but the bottom third of the monitor > remains black (since the Q60 y resolution is 512 pixels, not 768). > > Kudos to Peter for making this work. > > Wolfgang > > > > On 01/05/2018 11:34, Peter Graf via Ql-Users wrote: > >> Hello, >> >> I have developed an alternative video controller for Q40 and Q60: >> >> http://qlforum.co.uk/viewtopic.php?f=2&t=2434 >> >> All the best >> Peter >> ___ >> QL-Users Mailing List >> >> >> ___ > QL-Users Mailing List > -- Dave Park d...@sinclairql.com ___ QL-Users Mailing List
Re: [Ql-Users] Q40 and Q60 video controller for flatscreen monitors
Hi all, > I have developed an alternative video controller for Q40 and Q60: I've been testing this for a few months now. At last I can use the Q60 with a more modern flatscreen with VGA and 1024*768 resolution. The image is correctly displayed, but the bottom third of the monitor remains black (since the Q60 y resolution is 512 pixels, not 768). Kudos to Peter for making this work. Wolfgang On 01/05/2018 11:34, Peter Graf via Ql-Users wrote: Hello, I have developed an alternative video controller for Q40 and Q60: http://qlforum.co.uk/viewtopic.php?f=2&t=2434 All the best Peter ___ QL-Users Mailing List ___ QL-Users Mailing List
Re: [Ql-Users] SMSQ/E 3.33
Hi Bob, I configured the SMSQ/E with all Q68 sold with FAT enabled. I guessed that it would useful. But I did not create a FAT16 partition on the supplied SD Card. RegardsDerek Original message From: Bob Spelten via Ql-Users Date: 01/05/2018 11:26 (GMT+00:00) To: ql-users Cc: Bob Spelten Subject: Re: [Ql-Users] SMSQ/E 3.33 Op Tue, 01 May 2018 12:06:00 +0200 schreef Bob Spelten : > Op Mon, 30 Apr 2018 20:38:27 +0200 schreef Wolfgang Lenerz via Ql-Users > : > >> Hi, >> >> I just re-upped the binary file. >> > Thanks again Wolfgang, but... > The FAT_xxx range of keywords still seem to be missing ... > Oops, my mistake. This v333 is configured differently then the previous one that came with the machine, FAT_ was disabled. Bob -- The BSJR QL software site at: "http://members.upc.nl/b.spelten/ql/"; --- Deze e-mail is gecontroleerd op virussen door AVG. http://www.avg.com ___ QL-Users Mailing List ___ QL-Users Mailing List
Re: [Ql-Users] SMSQ/E 3.33
Op Tue, 01 May 2018 12:06:00 +0200 schreef Bob Spelten : Op Mon, 30 Apr 2018 20:38:27 +0200 schreef Wolfgang Lenerz via Ql-Users : Hi, I just re-upped the binary file. Thanks again Wolfgang, but... The FAT_xxx range of keywords still seem to be missing ... Oops, my mistake. This v333 is configured differently then the previous one that came with the machine, FAT_ was disabled. Bob -- The BSJR QL software site at: "http://members.upc.nl/b.spelten/ql/"; --- Deze e-mail is gecontroleerd op virussen door AVG. http://www.avg.com ___ QL-Users Mailing List
Re: [Ql-Users] Four hard drives on the same Qbide
Hi everyone, John kindly sent me a lot of photos of the cable and the manual. Unfortunately, the design of the card is missing, without which it is not possible to recreate the cable. Do any of you have this documentation? Il sab 28 apr 2018, 07:15 Giorgio Garabello ha scritto: > Hi, many thanks! > My address is g.garabe...@gmail.com > > Il sab 28 apr 2018, 01:48 John Impellizzeri via Ql-Users < > ql-users@lists.q-v-d.com> ha scritto: > >> Giorgio, >> >> I remember this and actually have the IDE Expander as it was called. I >> don’t remember if it was demonstrated or shown at one of the US shows but I >> do at least remember it was talked about and I eventually ordered one from >> QUBBESoft. I only attended the US shows so it very well could have been >> shown at others. >> >> I still have the paperwork that came with it. I never could get it to >> work however. I don’t know if it was my QubIDE as I had an early version >> or it may have been due to the bus expander I was using. >> >> It was a small circuit board with a 40 pin IDE socket and another small >> socket next to it that when plugged in connected to the 6 pin header on the >> QubIDE. There are a few diodes and a small surface mount IC on the board >> as well. This side of the board was painted black so it covers the IC >> number. There was no circuit diagram in the documentation. >> >> A 50 pin ribbon cable was attached. One edge of the cable has 10 of the >> wires separated out and these are connected in various combinations to the >> 40 pin connectors as drive select lines I presume. >> >> The documentation said to jumper each drive as a master and went on to >> explain how to use the WIN_DRIVE command to assign the drives. It was >> recommended to use ROM v1.35 or later and was supposed to identify all >> drives at power up. >> >> I don’t recall now what problem I had with it just that I couldn’t get it >> to work and set it aside. >> >> I don’t think the list will accept attachments but if you want further >> info or pictures let me know with your email address and I can send it to >> you. >> >> >> John >> >> >> > On Apr 27, 2018, at 10:29 AM, Giorgio Garabello via Ql-Users < >> ql-users@lists.q-v-d.com> wrote: >> > >> > Many years ago I read somewhere that it was possible to connect 4 hard >> > drives on the same Qbide, an Italian user has confirmed to me that >> "Nasta" >> > demonstrated this to some meeting. >> > None of us remember the details, where can I find information about it? >> > Thanks in advance to everyone. >> > >> > Giorgio >> > ___ >> > QL-Users Mailing List >> >> ___ >> QL-Users Mailing List > > ___ QL-Users Mailing List
Re: [Ql-Users] SMSQ/E 3.33
Op Mon, 30 Apr 2018 20:38:27 +0200 schreef Wolfgang Lenerz via Ql-Users : Hi, I just re-upped the binary file. Thanks again Wolfgang, but... The FAT_xxx range of keywords still seem to be missing and thus produces an "unknown procedure" error on FAT_DRIVE in the BOOT file. Bob -- The BSJR QL software site at: "http://members.upc.nl/b.spelten/ql/"; --- Deze e-mail is gecontroleerd op virussen door AVG. http://www.avg.com ___ QL-Users Mailing List
[Ql-Users] Q40 and Q60 video controller for flatscreen monitors
Hello, I have developed an alternative video controller for Q40 and Q60: http://qlforum.co.uk/viewtopic.php?f=2&t=2434 All the best Peter ___ QL-Users Mailing List
Re: [Ql-Users] Sad news, sad news and more sad news
Dear Alexandre, thank you as well. I remember having exactly one customer in Brazil ;-) All the best, Jochen ___ QL-Users Mailing List
Re: [Ql-Users] Sad news, sad news and more sad news
Dear François, thank you very much. Well, I have not really left the QL, nor have I been very active after I stopped QL Today. I still use SMSQ/E every day ... I am glad to have met so many nice QLers during many years of QLing, including you, of course, François. Let's be glad that we had a great time - maybe one of the best, most innovative and most interesting ever? Best regards Jochen Hi Jochen, Sad news indeed. Condolences for your wife's father. Now that you seem to leave the QL, it is time for me to thank you not only for the software but also for the excellent service and help you have provided all those years! Kind regards, François Van Emelen ___ QL-Users Mailing List ___ QL-Users Mailing List
