Rockbox Technical Forums
Support and General Use => Hardware => Topic started by: Graham1 on March 03, 2016, 05:16:12 PM
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Hi
Installing the development version (5138995) on my sansa clip v2 displays a blank screen straight after applying the firmware. Rockbox seems to be running in the background as the clip lights up when buttons are pressed and occasionally the screen re-appears. I'll edit this post again if I can confirm which buttons worked. Btw, the stable release (version 3.13) works without any problems.
:)
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Can you post your config.cfg file contents?
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Can you post your config.cfg file contents?
Hi saratoga
Please see my config.cfg below
:)
# .cfg file created by rockbox 5138995-160216 - http://www.rockbox.org
volume: -24
selector type: pointer
scrollbar width: 5
time format: 12hour
sbs: /.rockbox/wps/classic_statusbar.sbs
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Try this build:
www.mit.edu/mgg6/www/rockbox-clipv2_noscaling.7z
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Try this build:
www.mit.edu/mgg6/www/rockbox-clipv2_noscaling.7z
Same blank screen I'm afraid :'(.
When I switch on the clip, the rockbox logo appears briefly and then the screen goes blank. Shortly after this, the arrow keys and circle light up blue and then turn off after a couple of seconds.
:)
EDIT: Btw, booting into Sandisk's firmware (left arrow + power) loads fine.
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Ok so its probably not my recent frequency scaling changes. I'm not sure then, have you tried any builds since 3.13 but before this month? A lot has changed over the last few years.
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Ok so its probably not my recent frequency scaling changes. I'm not sure then, have you tried any builds since 3.13 but before this month? A lot has changed over the last few years.
No, I haven't tried any of the previous builds. I have been using the Rockbox utility to pull down the stable and development versions. Is it just a case of unzipping these builds and then copy/paste onto the root of the clip? (deleting the previous version first).
I'll test a few and report back which is the latest working version.
:)
EDIT: I have tested the latest builds of each Rev (2016-02-16, 12, 7 and 6) and all show a blank screen.
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Unfortunately we don't provide binaries for old development builds so you would have to compile them yourself. I was hoping you had tried some builds in the past and could give some clues.
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Unfortunately we don't provide binaries for old development builds so you would have to compile them yourself. I was hoping you had tried some builds in the past and could give some clues.
Sorry, I only joined the other day :). Not to worry, I'll put the stable version back on. Thanks for all your help. Appreciated.
:)
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Installing the development version (5138995) on my sansa clip v2 displays a blank screen straight after applying the firmware.
Me too. This happens with 5138995 build only.
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What was the last build that worked?
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Try this build:
www.mit.edu/mgg6/www/rockbox-clipv2_noscaling.7z
In this build you just disable scaling or reverting whole patch? Possibly we still have some timing issue on cliv2 with new frequency.
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No, I just disabled scaling. Here is the last version before any changes (1015088d90275336e7b999624d2524800b8aa3e8):
www.mit.edu/mgg6/www/rockbox-clipv2-beforeScaling.7z
www.mit.edu/mgg6/www/rockbox-clip+-beforeScaling.7z
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No, I just disabled scaling. Here is the last version before any changes (1015088d90275336e7b999624d2524800b8aa3e8):
www.mit.edu/mgg6/www/rockbox-clipv2-beforeScaling.7z
www.mit.edu/mgg6/www/rockbox-clip+-beforeScaling.7z
Hi saratoga
Just letting you know that this version works with my Sansa Clip v2. I'm not sure if I did the right thing buy moving the existing ".rockbox" folder to my harddisk and then extracting the file above onto my SCv2. Displays the new version when booting Rockbox now so I guess all went well.
:)
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In lcd-clipv2.c we have #define LCD_DELAY 10 and while(i<LCD_DELAY) i++;
Probably we should change it or replace with udelay.
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http://www.mit.edu/mgg6/www/rockbox-clipv2-lcddelay_25.7z
Longer LCD delay (25, and frequency scaling enabled since that doesn't seem to be the problem).
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If someone with a display problem on the clip could test that it would be very helpful.
Mihail: sorry I haven't been working on this lately, I still want to get your patches committed. How do you want to proceed?
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IMHO first we should add gui boost - we already have many reports about it. Also we can commit simple bug fix: g#1269, g#1271, g#1273, g#1274, g#1275. Wait for week or two and commit g#1272 and enable voltage scaling.
For g#1270 we need more testing, especially on AMSv1.
g#1276 should be good for commit, but please test it on your players before commit.
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If someone with a display problem on the clip could test that it would be very helpful.
Still showing a blank display after boot.
:)
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Probably we need much bigger delay (>=50) as it was in case fuze v2.
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Occasionally, the screen displays after pressing a button but doesn't display instantly like 3.13 did. It's a bit trial and error but usually the longer you leave the clip without pressing a button, the more chance you have of the screen appearing. If you press a button and the screen doesn't display, it doesn't after that.
:)
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Here are two longer delays. Do either of them work?
http://www.web.mit.edu/mgg6/www/rockbox-clipv2-lcddelay_50.7z
http://www.web.mit.edu/mgg6/www/rockbox-clipv2-lcddelay_100.7z
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Here are two longer delays. Do either of them work?
http://www.web.mit.edu/mgg6/www/rockbox-clipv2-lcddelay_50.7z
http://www.web.mit.edu/mgg6/www/rockbox-clipv2-lcddelay_100.7z
Blank display on both. Could you confirm I'm applying the correct actions.
1. Use Rockbox Utility 1.4.0 to install boot loader only (development version). Boots as 5.0
2. Extract zip and copy ".rockbox" folder to root of Sansa Clip v2.
3. Waited 50 and 100 secs after each installation.
Pressing the play button after these times did display menu on both these installations.
:)
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You don't need rockbox utility, just to copy the build to the player. Is that what you were doing?
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saratoga: I am very unsure is it related, but can you also add big delay in button_hold (as it was for fuze v2)?
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You don't need rockbox utility, just to copy the build to the player. Is that what you were doing?
Just wanted to make sure I was using the correct firmware (development, rather than stable) or does that not matter? I usually just delete the ".rockbox" folder on Sansa Clip v2 and then replace (copy/paste) with newer builds.
:)
Edit: Just so I am sure, should these fixes display the menu straight after the Rockbox logo? (like with 3.13).
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saratoga: I am very unsure is it related, but can you also add big delay in button_hold (as it was for fuze v2)?
Or you have better idea?
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saratoga: I am very unsure is it related, but can you also add big delay in button_hold (as it was for fuze v2)?
Or you have better idea?
Sorry no, just busy. Could you give me a patch? I'm not too familiar with that delay.
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Ok.
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http://web.mit.edu/mgg6/www/rockbox-clipv2-button_hold.7z
Let us know if this works any better.
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http://web.mit.edu/mgg6/www/rockbox-clipv2-button_hold.7z
Let us know if this works any better.
Blank screen after logo. No display after keypress now.
:)
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Another build for test: http://knk.square7.ch/rockbox-0.zip
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Another build for test: http://knk.square7.ch/rockbox-0.zip
Still a blank display.
:)
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Ok ;) I disable hold and power button to be sure that not related.
http://knk.square7.ch/rockbox-1.zip
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Ok ;) I disable hold and power button to be sure that not related.
http://knk.square7.ch/rockbox-1.zip
Blank after boot. Not sure if you were joking about hold and power buttons being disabled but both are working. Pressing hold and sliding up again shows display each time. Interface navigation is very sluggish.
Edit: Straight after boot, sliding down (hold) and back up again displays screen instantly.
Edit2: The same above applies to the latest development build and navigation is still sluggish.
:)
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I have the same problem wist the broken screen. Tried all files without success.
Can someone walk me through the music folder to play at least the songs without the screen? Which buttons do I have to press?
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Also, once the display is working but then times out (backlight off), the same problem with the blank screen which can only be resolved by sliding down and up again.
:)
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Blank after boot. Not sure if you were joking about hold and power buttons being disabled but both are working. Pressing hold and sliding up again shows display each time. Interface navigation is very sluggish.
Very strange.
saratoga: Can you test hold and power button on your clip v2 with this (http://knk.square7.ch/rockbox-1.zip) build?
I have the same problem wist the broken screen. Tried all files without success.
Can someone walk me through the music folder to play at least the songs without the screen? Which buttons do I have to press?
Probably better revert rockbox to version 3.13.
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saratoga: Can you test hold and power button on your clip v2 with this (http://knk.square7.ch/rockbox-1.zip) build?
Power button is completely disabled, but the hold switch works. Otherwise the build is completely normal on my device.
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I have the same problem wist the broken screen. Tried all files without success.
Can someone walk me through the music folder to play at least the songs without the screen? Which buttons do I have to press?
Hi C0da
Does sliding down (hold) and up again work on your Sansa Clip v2?
:)
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Another build, should disable hold and power button.
http://knk.square7.ch/rockbox-2.zip
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Power button is completely disabled, but the hold switch works. Otherwise the build is completely normal on my device.
Hi saratoga
Does the display turn on instantly after the Rockbox logo on your Sansa Clip? I'm using original firmware 02.01.35 if that helps.
:)
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Another build, should disable hold and power button.
http://knk.square7.ch/rockbox-2.zip
Is that for me to test or saratoga?
:)
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For both.
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Another build, should disable hold and power button.
http://knk.square7.ch/rockbox-2.zip
Hold doesn't work now but power still does.
:)
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You still have problem with display?
If power button work, it should power off after 3 sec. If not, it still can force hardware power off after > 10 sec.
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You still have problem with display?
If power button work, it should power off after 3 sec. If not, it still can force hardware power off after > 10 sec.
Ok, thanks. Must have been doing a force hardware power off as still on (blue lights) after 4 secs but no display with this build.
:)
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I have the same problem wist the broken screen. Tried all files without success.
Can someone walk me through the music folder to play at least the songs without the screen? Which buttons do I have to press?
Hi C0da
Does sliding down (hold) and up again work on your Sansa Clip v2?
:)
Yes every button works only the display is black. I'm back at 3.13 again.
Can someone post which buttons I need to press in order to get in the music folder?
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Yes every button works only the display is black. I'm back at 3.13 again.
Can someone post which buttons I need to press in order to get in the music folder?
You back to 3.13 and still have black display?
Graham1: http://knk.square7.ch/rockbox-3.zip
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Yes I have black screen with every version.
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Yes I have black screen with every version.
Are you see rockbox logo at startup?
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Yes I have black screen with every version.
Are you see rockbox logo at startup?
No I don't see anything but I know the player is still working because I accidently turned on the radio. I just don't know which combination I have to press to access the music folder.
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No I don't see anything but I know the player is still working because I accidently turned on the radio. I just don't know which combination I have to press to access the music folder.
In answer to your question and given that you haven't changed any of the default settings (hopefully). The structure should look like this.
Files
---##MUSIC#
---##PORT#
---ARCHIVE
---AUDIBLE
---AUDIOBOOKS
---MUSIC
I would imagine pressing the home button will take you back to the "Files" section. As the hold and return to normal position (slider switch) doesn't work for you, maybe using the voice file will help with speaking the folders to you.
Does the original Sansa firmware work for you?
Edit: If you use the "Home" button you will need to select (middle button) to enter the Files section.
:)
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Yes I have black screen with every version.
Is your LCD display dead then? Using the standard settings you should be in the main menu when turning the player on. Pressing the home button should bring you to the WPS. Now pressing the select button brings you to the file browser then. You could edit the config.cfg file on your player to start playing music after boot to at least listen to music.
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Graham1: http://knk.square7.ch/rockbox-3.zip
Blank screen.
:)
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C0da: you can install voice (http://www.rockbox.org/wiki/VoiceHowto) file:
for latest dev: http://download.rockbox.org/daily/voices/sansaclipv2-20160326-english.zip
or for 3.13: http://download.rockbox.org/release/3.13/sansaclipv2-3.13-english.zip
Graham1: http://knk.square7.ch/rockbox-4.zip
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I have the same problem wist the broken screen. Tried all files without success.
Can someone walk me through the music folder to play at least the songs without the screen? Which buttons do I have to press?
Hi C0da
Does sliding down (hold) and up again work on your Sansa Clip v2?
:)
Yes every button works only the display is black. I'm back at 3.13 again.
Can someone post which buttons I need to press in order to get in the music folder?
Does the screen work in the Sandisk firmware?
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C0da: you can install voice (http://www.rockbox.org/wiki/VoiceHowto) file:
for latest dev: http://download.rockbox.org/daily/voices/sansaclipv2-20160326-english.zip
or for 3.13: http://download.rockbox.org/release/3.13/sansaclipv2-3.13-english.zip
This helped me out.
Does the screen work in the Sandisk firmware?
No because I'm unable to install it. The Sansa Updater doesn't find the Clip and when I put the m30pa.bin in the root directory nothing happens. Did I miss something?
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No because I'm unable to install it.
The sandisk firmware is always installed. Hold left when powering on to boot it.
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No because I'm unable to install it.
The sandisk firmware is always installed. Hold left when powering on to boot it.
Thanks blank screen as well with original firmware. :(
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No because I'm unable to install it.
The sandisk firmware is always installed. Hold left when powering on to boot it.
Thanks blank screen as well with original firmware. :(
It sounds like your player has a broken screen. Start a new thread if you have questions, this one is about fixing a problem with clipv2 frequency scaling builds.
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Graham1: http://knk.square7.ch/rockbox-4.zip
Blank screen.
:)
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I think now it should work :)
http://knk.square7.ch/rockbox-5.zip
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I think now it should work :)
http://knk.square7.ch/rockbox-5.zip
Yes, you are correct. Many thanks for your help :). May I ask what the problem was and how you resolved it?
@saratoga: Thanks for your help also.
:)
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After adding frequency scaling we have overclocked display port.
http://gerrit.rockbox.org/r/#/c/1281/
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Looks good. Do you think it's time to put in the voltage changes and do this all over again when things break :)
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:) I commit g#1272 as it can help got less bug reports. So if you want enable voltage scaling - do that.
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http://gerrit.rockbox.org/r/#/c/1282/
If this looks good to you I'll push it.
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Yes, good solution.
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Fixed a dumb mistake and then pushed.
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I also overlooked and we still have same mistake in rockbox code :)
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Yes, current build is broken. What am I missing?
Edit: I don't see anything obviously wrong and don't have time to dig into this right now. I'll just disable it again until its fixed.
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I mean another code, not related to voltage/frequency scaling. IMHO for lebellium report we just should rise voltage. I have made test build and I wait for him in IRC.
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I also have the same problem with a Sansa Clip Zip; buttons work fine, the display is fine on the firmware load, but on Rockbox I get a black screen, no loading page or anything. Every now and then in a dim room I can see the display is on, but very faintly.
http://knk.square7.ch/rockbox-5.zip might fix my problem but the link is broken. Does anyone have a reupload?
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I also have the same problem with a Sansa Clip Zip; buttons work fine, the display is fine on the firmware load, but on Rockbox I get a black screen, no loading page or anything. Every now and then in a dim room I can see the display is on, but very faintly.
Can you try reset config (just remove .rockbox/config.cfg)?
http://knk.square7.ch/rockbox-5.zip might fix my problem but the link is broken. Does anyone have a reupload?
We already commit this changes to rockbox.