It was very useful feature, and it's strange that it could disappear so silently: I haven't googled any solutions for this problem. So:
- All folders are shown with standard icons (with any icon theme)
- But I can see the custom icon in a folder's Properties dialog

What could it mean? What to do?

can you edit your subject to "Dolphin 2.0 doesn't show custom folder icons"

is this your bug https://bugs.kde.org/show_bug.cgi?id=288824

did this happen after an update to 4.8?

OK, I renamed the topic.

google01103 wrote:did this happen after an update to 4.8?

I don't remember exactly when I noticed it first, but I think you're right.

I believe this functionality has been restored in KDE Trunk (to be 4.9). Not sure if it will be included as a bug fix in 4.8.1 however.

this should definitely be included in 4.8.1

on my kubuntu 12.04 beta1 machine it shows custom folder icons on local folders

but it does't show custom folder icons for my NFS shares..

it does show custom folder icons on NFS folders if they contain at least 1 picture (png or jpg, gif)

i worked around this bug by planting a small 2x2 px gif (totally transparent) into the folders.. (it does not work with hidden files "blank.gif" does work ".blank.gif" does not!

This is

https://bugs.kde.org/show_bug.cgi?id=288824

The reason why custom folder icons are not shown for, e.g., NFS is a change in kdelibs in KDE 4.7.4, which was actually a bug fix for

https://bugs.kde.org/show_bug.cgi?id=178678

More details about this are in the bug report.

waldelf wrote:this should definitely be included in 4.8.1

I've just updated to 4.8.1, but nothing changed.

I see the problem not on network shares but on a normal local drive. The filesystem is NTFS. At the same time, right now I tried to create a new folder in my /home (filesystem is ext4) and to set a custom icon for it — and it worked!

Does this behavour depends on filesystem? I think it's very strange.

so ntfs is treated like nfs (the filesystem on my NAS is ext3) ? hmmm..

waldelf wrote:so ntfs is treated like nfs (the filesystem on my NAS is ext3) ? hmmm..

for me custom folders do not appear on NTFS partitions

google01103 wrote:

waldelf wrote:so ntfs is treated like nfs (the filesystem on my NAS is ext3) ? hmmm..

for me custom folders do not appear on NTFS partitions

The NTFS issue is being tracked at

https://bugs.kde.org/show_bug.cgi?id=291251

I'm not 100% sure, but it could be due to the same change in kdelibs like the NFS issue (note that the NTFS bug was also first reported for KDE 4.7.4). I can't say more about that at the moment because I'm not familiar with that code in kdelibs.

Yes, you're right, the problem is that KDE detects NTFS as a «slow» filesystem. I solved this problem for me with recompiling kdelibs from sources with a little change.

This is a piece of code from kdelibs/kdecore/io/kfilesystemtype_p.cpp:

Code: Select all

KFileSystemType::Type determineFileSystemTypeImpl(const QByteArray& path)
{
    struct statfs buf;
    if (statfs(path.constData(), &buf) != 0) {
        //kDebug() << path << errno << strerror(errno);
        return KFileSystemType::Unknown;
    }
    switch (buf.f_type) {
    case NFS_SUPER_MAGIC:
    case AUTOFS_SUPER_MAGIC:
    case AUTOFSNG_SUPER_MAGIC:
    case FUSE_SUPER_MAGIC: // TODO could be anything. Need to use statfs() to find out more.
        return KFileSystemType::Nfs;
    case SMB_SUPER_MAGIC:
        return KFileSystemType::Smb;
    case MSDOS_SUPER_MAGIC:
        return KFileSystemType::Fat;
    default:
        return KFileSystemType::Other;
    }
}

Somebody has leaved a comment near «case FUSE_SUPER_MAGIC». The problem is really in this line. I just commented it out and recompiled kdelibs. Now I can see my custom folder icons again!

Of course I'm not sure that I didn't break something useful with it, but currently I haven't noticed any new bugs. I hope that this advice will be useful for somebody until subj will be fixed in a more elegant way.

This indicates that the problem is because NTFS is implemented as a FUSE driver, rather than a native driver. In most cases, FUSE is used to implement remote file systems such as sshfs, webdav, etc.

Is there a way to use NTFS «directly» (without FUSE)?

(Unfortuntely, I'm not such an advanced user so I even don't know exactly what FUSE is. )

As far as I am aware, the only reliable NTFS implementation is ntfs-3g, which is implemented as a FUSE driver. FUSE drivers run in user space instead of directly in the kernel itself.

A bug in a FUSE driver will not cause the system to crash, while a bug in a kernel driver will. However, kernel drivers have more direct hardware access, and higher priority in terms of execution time, so are faster.

i have the very same problem with my samba shares.. dolphin just ignores the .desktop entries .. is there no simple way to make dolphin read those .desktop files and show the custom folder icon ?? is this also related to the problem discussed in the posts above?