Bug 5315

Summary:	Samsung external monitor proper resolution not recognized
Product:	Mageia	Reporter:	Reinout van Schouwen <reinout>
Component:	RPM Packages	Assignee:	Thierry Vignaud <thierry.vignaud>
Status:	RESOLVED OLD	QA Contact:
Severity:	normal
Priority:	Normal	CC:	hoyt, hoytduff, mageia
Version:	Cauldron	Keywords:	NEEDINFO
Target Milestone:	---
Hardware:	x86_64
OS:	Linux
Whiteboard:
Source RPM:	ldetect-lst	CVE:
Status comment:
Attachments:	lspcidrake -v output, as requested does XFdrake works better once this patch is applied to /usr/share/ldetect-lst? try harder to get EDID try even harder to get EDID lspcidrake for acer Aspire 5315 laptop and ViewSonix VP171b monitor

Description Reinout van Schouwen 2012-04-10 00:17:24 CEST

Description of problem:
I have a Samsung SyncMaster XL2370 attached as an external monitor to my Asus X56V laptop (Radeon HD3470, 1440x900). Its native resolution is 1920x1080. However, the Gnome 3 screen resolution settings don't allow me to pick a higher resolution than the laptop's monitor, 1440x900. Of course, I did uncheck the 'mirror screens' box.

Version-Release number of selected component (if applicable):
0.101-1mga2

How reproducible:
Always

Steps to Reproduce:
1. Attach monitor to VGA connector
2. Boot Mageia 2
3. Go to System Settings > Screens
4. Click 'Samsung Electric Company 23"' screen
5. Click 'Resolution' dropdown menu.

Some details about the monitor given by xrandr:

[reinout@localhost status@gnome-shell.2jk.org]$ xrandr --prop | monitor-parse-edid
Name: SyncMaster
EISA ID: SAM05c3
EDID version: 1.3
EDID extension blocks: 0
Screen size: 51.0 cm x 28.7 cm (23.04 inches, aspect ratio 16/9 = 1.78)
Gamma: 2.2
Analog signal
Max video bandwidth: 170 MHz

	HorizSync 30-81
	VertRefresh 56-60

	# Monitor preferred modeline (60.0 Hz vsync, 67.5 kHz hsync, ratio 16/9, 95 dpi)
	ModeLine "1920x1080" 148.5 1920 2008 2052 2200 1080 1084 1089 1125 +hsync +vsync

Comment 1 Manuel Hiebel 2012-04-10 19:22:01 CEST

Can you attach the output of lspcidrake -v ?

Comment 2 Reinout van Schouwen 2012-04-10 22:56:23 CEST

Created attachment 1965 [details]
lspcidrake -v output, as requested

Manuel Hiebel 2012-04-11 00:43:42 CEST

Assignee: bugsquad => thierry.vignaud

Comment 3 Thierry Vignaud 2012-05-03 23:57:28 CEST

We need the output of "monitor-edid --MonitorsDB"

Keywords: (none) => NEEDINFO
Source RPM: drakx-kbd-mouse-x11 => ldetect-lst

Thierry Vignaud 2012-05-03 23:57:32 CEST

Attachment 1965 is obsolete: 0 => 1

Comment 4 Reinout van Schouwen 2012-05-04 00:38:04 CEST

That doesn't give very helpful information:

$ sudo monitor-edid --MonitorsDB
No monitor range data in EDID.

Yes, the monitor is attached and showing image as I executed the monitor-edid command.

Comment 5 Thierry Vignaud 2012-05-04 00:55:19 CEST

Any more luck with eg: "monitor-probe radeon"

Comment 6 Thierry Vignaud 2012-05-04 00:57:25 CEST

Created attachment 2174 [details]
does XFdrake works better once this patch is applied to /usr/share/ldetect-lst?

Comment 7 Reinout van Schouwen 2012-05-04 01:36:00 CEST

(In reply to comment #6)
> Created attachment 2174 [details]
> does XFdrake works better once this patch is applied to /usr/share/ldetect-lst?

I've patched the MonitorsDB file but XFdrake only detects the laptop screen (flat panel 1440x900), no external monitors. I see no difference in behavior from the Gnome system settings.

Comment 8 Thierry Vignaud 2012-05-04 01:49:36 CEST

Created attachment 2175 [details]
try harder to get EDID

does XFdrake works better once this patch is applied to /usr/lib/libDrakX?

Comment 9 Reinout van Schouwen 2012-05-05 00:45:35 CEST

(In reply to comment #8)
> Created attachment 2175 [details]
> try harder to get EDID
> 
> does XFdrake works better once this patch is applied to /usr/lib/libDrakX?

XFdrake still only shows the laptop screen as the only detected monitor.

Output of monitor-probe radeon is:

EISA ID: CPT1465
EDID version: 1.1
EDID extension blocks: 0
Screen size: 33.1 cm x 20.7 cm (15.37 inches, aspect ratio 16/10 = 1.60)
Gamma: 2.2
Digital signal

	# Monitor preferred modeline (59.9 Hz vsync, 55.5 kHz hsync, ratio 16/10, 110 dpi)
	ModeLine "1440x900" 88.75 1440 1488 1520 1600 900 903 909 926 -hsync -vsync

Comment 10 Reinout van Schouwen 2012-05-05 00:49:01 CEST

Hmm. Note that the preferred modeline says 1440x900 which is actually the laptop's resolution.
The resolution shown in comment #0 by xrandr --prop (1920x1080) is the correct one.

Comment 11 Reinout van Schouwen 2012-05-05 00:53:23 CEST

I've managed to manually set my external monitor to the right resolution by doing:
xrandr --newmode 1920x1080 148.5 1920 2008 2052 2200 1080 1084 1089 1125 +hsync +vsync
xrandr --addmode 1920x1080 VGA-0
xrandr --output VGA-0 --mode 1920x1080

This is, however, not a permanent solution.

Comment 12 Thierry Vignaud 2012-05-23 17:28:14 CEST

Created attachment 2362 [details]
try even harder to get EDID

And does it work better with that patch?
You'd first to revert the "try harder to get EDID" one.
(using "patch -R" instead of patch)

Comment 13 Reinout van Schouwen 2012-05-25 00:33:14 CEST

After applying that patch, I still see no difference. (Is XFdrake even supposed to offer external/secondary monitor configuration?)

Comment 14 Marja Van Waes 2012-05-26 13:07:19 CEST

Hi,

This bug was filed against cauldron, but we do not have cauldron at the moment.

Please report whether this bug is still valid for Mageia 2.

Thanks :)

Cheers,
marja

Comment 15 Reinout van Schouwen 2012-05-29 00:29:51 CEST

Check, still valid.

Version: Cauldron => 2

Manuel Hiebel 2012-05-29 00:30:42 CEST

Keywords: NEEDINFO => (none)

Sander Lepik 2012-05-29 09:16:48 CEST

CC: (none) => sander.lepik
Version: 2 => Cauldron
Whiteboard: (none) => MGA2TOO

Comment 16 Marja Van Waes 2012-07-06 15:04:01 CEST

Please look at the bottom of this mail to see whether you're the assignee of this  bug, if you don't already know whether you are.


If you're the assignee:

We'd like to know for sure whether this bug was assigned correctly. Please change status to ASSIGNED if it is, or put OK on the whiteboard instead.

If you don't have a clue and don't see a way to find out, then please put NEEDHELP on the whiteboard.

Please assign back to Bug Squad or to the correct person to solve this bug if we were wrong to assign it to you, and explain why.

Thanks :)

**************************** 

@ the reporter and persons in the cc of this bug:

If you have any new information that wasn't given before (like this bug being valid for another version of Mageia, too, or it being solved) please tell us.

@ the reporter of this bug

If you didn't reply yet to a request for more information, please do so within two weeks from now.

Thanks all :-D

Comment 17 Samuel Verschelde 2015-05-03 15:27:49 CEST

Is this still valid in Mageia 5RC?

Keywords: (none) => NEEDINFO

Comment 18 Hoyt Duff 2015-05-22 16:14:25 CEST

Created attachment 6613 [details]
lspcidrake for acer Aspire 5315 laptop and ViewSonix VP171b monitor

CC: (none) => hoyt

Comment 19 Hoyt Duff 2015-05-22 16:15:07 CEST

Still valid for Aspire 5315 laptop and ViewSonix VP171b monitor and Mageia 5.

Samuel Verschelde 2015-05-22 16:17:10 CEST

Keywords: NEEDINFO => (none)
Whiteboard: MGA2TOO => MGA4TOO MGA5TOO

Comment 20 Samuel Verschelde 2015-05-22 16:19:05 CEST

(In reply to Hoyt Duff from comment #19)
> Still valid for Aspire 5315 laptop and ViewSonix VP171b monitor and Mageia 5.

Different hardware should be tracked in a different bug report. Can you open a new one?

Keywords: (none) => NEEDINFO
Whiteboard: MGA4TOO MGA5TOO => (none)

Comment 21 Hoyt Duff 2015-05-22 16:24:46 CEST

No problem, but it seems that the bug speaks to an underlying problem, not a hardware-specific one.

Comment 22 Samuel Verschelde 2015-05-22 16:27:03 CEST

I can't say, maybe Thierry can. If he doesn't answer I suggest to open a new bug and add this one in the see also field. The worst that can happen is it's closed as duplicate later.

Comment 23 Hoyt Duff 2015-05-22 16:42:57 CEST

Submitted as Bug 16015
https://bugs.mageia.org/show_bug.cgi?id=16015

Comment 24 Hoyt Duff 2015-05-22 19:38:28 CEST

I just discovered that this is actually a bug with LXQT, which places the menu bar at the bottom of the 1280x800 laptop screen, not at the bottom of the external monitor screen which is 1280x1024. 

So . . my bug is not THIS bug. Bug 5315 appears to be "fixed" for me.

Switching to LXDE "solves" my problem, so I'll go with LXDE for now. I don't have other DEs installed on this laptop.

Comment 25 Reinout van Schouwen 2015-05-25 11:58:53 CEST

The laptop is dead now, I cannot say if the problem is still reproducable.

Comment 26 Samuel Verschelde 2015-05-27 10:17:48 CEST

(In reply to Reinout van Schouwen from comment #25)
> The laptop is dead now, I cannot say if the problem is still reproducable.

Closing as OLD then. If someone still has the issue with that specific hardware, they can reopen of create a new bug report.

Status: NEW => RESOLVED
Resolution: (none) => OLD

Comment 27 Hoyt Duff 2017-07-19 18:39:19 CEST

No longer a problem as of Mageia6, so it was fixed somewhere along the way. Thanks!

CC: (none) => hoytduff